Table of Content

30 December 2006, Volume 40 Issue S1 Previous Issue    Next Issue

特邀报告

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Eco-energy Forest——the Future Raw Material Base of Biomass Fuel Oil WANG Tao 2006, 40 (S1):  1-6.  Abstract ( 685 )   PDF (1052KB) ( 1025 )   Save In order to meet the demands of raw materials for biomass fuel oil production in China, comprehensive research on woody energy plant resources for biological fuel oil in China was conducted.Results and suggestions are posed in the respects of: the distribution, growth and possibility for utilization of the main woody energy plants in China, the establishment of resources base for woody energy plants in the resource-abundant area, the selection and breeding of superior varieties and research on their biological characteristics and economic characters, as well as the establishment of breeding bases.This research not only fillesd up the blank of research on woody bio-fuel oil plants, especially the selection and breeding of improved varieties, providing new resources for the production of bio-fuel oil,but also plays an obvious role in speeding up the progress of bio-fuel oil industrialization. Related Articles | Metrics

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Study on Some Problems of Biomass Energy and Energy Forestry YIN Wei-lun;ZHAI Ming-pu 2006, 40 (S1):  7-8.  Abstract ( 736 )   PDF (412KB) ( 851 )   Save A brief introduction on energy forestry and shrub energy forest in China and the important role of biomass energy to the energy development in future were presented in this paper.Besides, the influence of Chlorella vulgaris oil utilization on the bioenergy development was specially discussed. Related Articles | Metrics

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Key Technologies for Producing Fuel Ethanol from Lignocelluloses YU Shi-yuan 2006, 40 (S1):  8-12.  Abstract ( 537 )   PDF (877KB) ( 1054 )   Save Lignocelluloses are reliable raw materials available for large-scale fuel ethanol production in China.In the research on a pilot plant, lignocelluloses were steam exploded, cellulose and hemicellulose were hydrolyzed with cellulose enzyme synthesized by Trichoderma reesei strain, and the resulted pentoses and hexoses were fermented to ethanol by Pichia stipitis.This pilot plant handled lignocelluloses 5 t per day to produce ethanol 0.8 t per day, with a hydrolysis yield of 71.3%, a sugar utilization ratio of 87.2 %, and an ethanol yield of 0.43 g/g consumed sugars.The cost of ethanol production was estimated to be 4000 yuan/t, or 500 USD/t.In order to tramsform this technology into productivity, further research works are required in the following respects of key technologies; 1) Pretreatment techniques of low energy consumption and low material loss, especially steam explosion and chemical-added explosion; 2) Recombinant strains for high-efficiency cellulose enzyme synthesis, systematic control of enzyme production and enzymatic hydrolysis; 3) Pentose fermentation regulation and genetic modification of yeast strains; 4) Assembling and coordination of the available key technologies for full-scale utilization of lignocelluloses; 5) Research on woody plants as energy resources. Related Articles | Metrics

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Present Status and Prospect of Exploitation and Application of Biomass Energy YUAN Zhen-hong;LÜPeng-mei;KONG Xiao-ying 2006, 40 (S1):  13-21.  Abstract ( 679 )   PDF (1725KB) ( 1093 )   Save Biomass energy resource and its characteristics were briefly analyzed.The present status of biomass energy and the development and application of its conversion technologies at home and abroad were reviewed.The problems and obstacles existing in biomass energy exploitation in China were analyzed and the medium and long-term prospects of biomass energy utilization were described. Related Articles | Metrics

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Cultivation Technique of Fuelwood Forests in China ZHANG Jian-guo;PENG Zuo-deng 2006, 40 (S1):  56-66.  Abstract ( 644 )   PDF (2137KB) ( 1446 )   Save Fuelwood forests belong to the renewable bioenergy and are well known as clean energy in the world.Mostly important, it is beneficial to the environmental protection and sustainable development of society.The afforertation of fuelwood forest is becoming an effective way to solve the countryside energy in our country.The dissertation sums up the silvicultural techniques of fuelwood forests such as the division of growth region, selection of trees species, management technology and so on. Related Articles | Metrics

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Biomass-based Polymer Materials——An Important Way for Energy Saving CHU Fu-xiang 2006, 40 (S1):  21-23.  Abstract ( 854 )   PDF (494KB) ( 1028 )   Save On the basis of analysis on the development trends of energy and polymer materials, the development of biomass-based polymer materials and their potential for energy saving were reviewed.The current situation and future development of specific polymer materials derived from cellulose, lignin, lactic acid and other forest resources were discussed in detail. Related Articles | Metrics

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Research Status on Thermo-chemical Conversion and Utilization of Forestry Biomass in China JIANG Jian-chun 2006, 40 (S1):  24-31.  Abstract ( 680 )   PDF (1366KB) ( 957 )   Save Biomass is an important renewable carbon resource that can be converted into normal fuels as solid,liquid and gas as well as other chemicals or products.Because of the exhaustion of fossil energy and impaction on environment of full earth, a lots of specialists and scholars pay more attention to the high-efficient utilization of biomass resource in the world.Biomass resource has many merits such as renewable, abundant, widespread, zero exhaustion of CO2 during its utilization.The high-efficient thermo-chemical conversion and utilization is the most important way for biomass energy utilization.This paper narrates the present situation of the technology on biomass thermo-chemical conversion in domestic and abroad.According to the situation of biomass energy in China, the development trends and prospects are discussed.Also some proposals on thermo-chemical utilization of biomass energy for China in future are put forward. Related Articles | Metrics

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Research on the Comprehensive Development of Key Equipment and Technology of Co-generation with Forest Remainder MA Yan 2006, 40 (S1):  32-37.  Abstract ( 601 )   PDF (933KB) ( 1029 )   Save This paper deals with research on how to initially handle the remainder of forest cleaning, afforesting and thinning into the form that can be convenient to be carried in forest and submit the raw material to forest plantation by scientific rational vehicle for co-generation comprehensive development.Preparing to construct serial dynamoelectric installations in forest plantation and the power generated by finite generator sets in forest plantation will be connected to national electric network through attached machine and corollary network equipment.The power sold to nation makes profit and the additional thermal energy is provided to forest plantation, thus entirely solve the problem how to utilize the resource of cleaning, afforesting and thinning efficiently and the problem about road and cost for transportation of resource, and increase the economic benefit of utilizing the resource of cleaning, afforesting and thinning.Put forward to promote cleaning and thinning with the profit of co-generation comprehensive development, push on cleaning and promote natural forest preservation project by economic leverage, expedite recovering national forest resources by the benefit of co-generation comprehensive development and provide a way to make profit for natural forest preservation area. Related Articles | Metrics

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Development of Forest Woody Biomass Briquette in China YU Guo-sheng;XIAO Jiang;YUAN Xiang-yue;HUI Cai-juan 2006, 40 (S1):  45-50.  Abstract ( 645 )   PDF (3149KB) ( 1113 )   Save Developing bio-energy is very important in the shortage of fossil fuels today.From the investigations and researches of the bio-energy of wood in our country, there are 0.8-1 billion tons per year of forestry wastes which can be used for bio-energy production in China.The briquette of wood based bio-materials could replace coal with its advantages of high heat value, clean burning and easy to make.The technology of briquette making under normal temperature will have a bright future because of its less energy consuming. Related Articles | Metrics

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Exploitation and Utilization Status of Bioenergy Willow and Its Cultivation and Growth in China ZHANG Wen-hui;HE Jing-feng;ZHOU Jian-yun 2006, 40 (S1):  38-45.  Abstract ( 748 )   PDF (1488KB) ( 1109 )   Save A set of the excellent varieties of Sweden short rotation coppice willow(SSRCW) and other ornamental varieties have been introduced from Sweden to China since 2004.About 1.53 hm2 germplasm resource nursery and 2.67 hm2 plantation in Yangling, Huanglong and Qiaoshan in Shannxi province have been established.The survival rate of young branch cutting and old branch cutting is above 90 % in different seasons.The height, diameter, biomass of mean individual of SSRCW is 2-3 times more than that of the native willows species and 4-5 times more than that of other native trees (Hippophae rhamnoides, Quercus variabilis, etc.).There are differences among the clones of SSRCS, the clone C and clone E are the best.The parameters of water relation and enzyme, etc.which show the ability of dry-resistance are 50 % higher than that of the native species.The experiment of cutting, pruning and making shape for SSRCS show its excellent omamentatl characters.These clones of SSRCW can keep the excellent native character in China. Related Articles | Metrics

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Study on Preparation of Bio-diesel with Four Woody Plant Oils LI Chang-zhu;JIANG Li-juan;CHENG Shu-qi 2006, 40 (S1):  51-55.  Abstract ( 727 )   PDF (793KB) ( 1326 )   Save Jatropha curcas L., Cornus wilsoniana,Camellia oleifera and Vernicid fordii are woody oil plants distributed mainly in south and center of subtropics.These plants have some characteristics such as wide distribution, strong adaptability and high-yield.Demand of renewable and clean bio-diesel to replace fossil diesel is big and urgent in China.To meet the requirement for increasing bio-diesel production, stable supply of feed stocks is important.Feasibility study of using lower-cost bio-diesel feedstock has been conducted.Oils extracted from Camellia oleiferal (COO), Jatropha curcas (JCO), Cormus wilsoniana (CWO) and Vernicia fordii (VFO) were used for bio-diesel preparation.Orthogonal experiment results showed that COO, JCO and CWO can be transesterificated successfully under the following conditions-.1)mole ratio of methanol to oil A((5-7) : 1); 2) dosage of catalyst B(0.9-1.1); 3) reaction temperature C(40-60℃); 4) reaction time D(60-120 min).The optimum conditions are A1B3C2D3 for COO feedstock, A1B3C2D3 for CWO,A3B2C3D3 for JCO, A3B1C1D1 for VFO and A2B1C3D2 for rapeseed oil (as contrast). Related Articles | Metrics

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Industrialized Preparation Technology of Biodiesel and Its Development Prospects in China NIE Xiao-an;JIANG Jian-chun;YANG Kai-hua;DAI Wei-di 2006, 40 (S1):  66-68.  Abstract ( 746 )   PDF (520KB) ( 1094 )   Save In this paper, the present situation of industrialized development of biodiesel was summarized,the reason why the industrialized technology of biodiesel was developed slowly in China was analysed,some methods to improve the economic profit of biodiesel production line were introduced, and the industrialized development prospect of biodiesel was forecasted.The important method to accelerate the industrialized development of biodiesel was to speed up the exploitation on applicable biodiesel preparation technology and to formulate a policy of allowing biodiesel into the market. Related Articles | Metrics

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Prospect on the Research of Energy Forest in the Subtropical Regions of China FU Mao-yi;ZHOU Ben-zhi;YANG Xiu-yan 2006, 40 (S1):  86-90.  Abstract ( 656 )   PDF (946KB) ( 814 )   Save The situation of energy utilization around the world was introduced, the problems of Chinese energy resources were analyzed, and the necessity and urgency of development of bio-energy were raised.Furthermore, the advantages of developing energy forest in Chinese subtropical regions were clarified.In the end, the prospects of the development of energy forest in subtropical areas were given,and made a discussion on the basic research which was need to launch urgently. Related Articles | Metrics

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Bioconversion of Lignocellulose to Ethanol CHEN Jie-nan 2006, 40 (S1):  69-77.  Abstract ( 683 )   PDF (1756KB) ( 1201 )   Save An overview of recent advances in technology of biological lignocellulose-to-ethanol process, the related genetic and engyme engineering, and commercialization prospects, as well as their possible applications in biomass-based ethanol fuel production in China, is provided. Related Articles | Metrics

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Status and Prospects of Techniques for Making Fuel-oil by Pyrolysis and Chemical Liquefaction of Biomass QIN Te-fu 2006, 40 (S1):  78-85.  Abstract ( 758 )   PDF (1308KB) ( 1002 )   Save Research status of converting biomass into fuel-oil at home and abroad is summarized.Process routing and technique status used in biomass thermolysis liquefaction, chemical liquefaction and co-liquefaction of biomass and coal, as well as characteristics of liquefied products, are introduced with emphasis.Technique routing in refining fuel-oil from liquefied products is presented in detail.Technique difficulties and development direction of making fuel-oil from biomass are indicated. Related Articles | Metrics

研究报告

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Developing Shrub Energy Forest to Form New Industrial Chain of Forest Renewalbe Energy YIN Wei-lun;ZHAI Ming-pu 2006, 40 (S1):  91-95.  Abstract ( 590 )   PDF (896KB) ( 964 )   Save In the paper, the significance of biomass energy development was discussed.Shrub forests not only hold higher ecological function and economic value, but also may be quality energy forests.In the further, according to western area characteristics, shrub forest should be constructed emphatically to form shrub energy forest in the combination of ecological environment construction. Related Articles | Metrics

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Bioenergy from Woody Biomass and Preparation of Functional Ecomaterials ZHAO Guang-jie 2006, 40 (S1):  115-118.  Abstract ( 527 )   PDF (764KB) ( 893 )   Save The utilization of woody biomass resource as substitute for fossil resources was discussed.Bioenergy from woody biomass can be achieved through biochemical or thermochemical conversion.The fundamental technological routes of prepaing functional ecomaterials were also described. Related Articles | Metrics

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Current Situation and Development Strategy of Woody Biomass Energy in China FANG Sheng-zuo;WANG Jing;PENG Fang-ren 2006, 40 (S1):  95-102.  Abstract ( 790 )   PDF (1367KB) ( 1025 )   Save Based on the analysis of energy utilization in the world discussed in this paper. Special attentions were paid to the discussion the advantage and the importance of the bioenergy were on the present situation of woody energy development and the research progress on the selection and silviculture of woody energy plants as well as woody bioenergy conversions. At last, we suggest that in order to encourage the development of woody bioenergy industry, the government should issue a regulation in favor of bioenergy developing, establish research platforms of bioenergy cycle systems, speed up the silviculture of woody energy plants, extend technical demonstration sites of bioenergy conversions and finally accelerate the marketing process of bioenergy in our country. Related Articles | Metrics

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Study on Energy Flow of Bioenergy Engineering of a Typical Rural Household ZHANG Pei-dong;SHEN Deng-feng;PAN Xiao-ren 2006, 40 (S1):  103-107.  Abstract ( 607 )   PDF (882KB) ( 903 )   Save Based on the utilization of bio-energy in rural areas, the bio-energy engineering of household-scale has rapid development in north China in recent years.A typical household-scale bio-energy engineering of a rural family in the middle region of Gansu has been studied.This engineering model was defined as an integrated eco-system.From ecological point of view, the status of energy flow of this eco-system was studied preliminarily. Related Articles | Metrics

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Problems and Countermeasures in Development of Biomass Energy XIAO Qian-wen 2006, 40 (S1):  108-114.  Abstract ( 535 )   PDF (1354KB) ( 965 )   Save Some existent or latent problems for current biomass energy development were discussed in this paper.Based on characteristics of energy production, some advice on national macro-adjustments and controls and industry management were proposed.Furthermore, five biomass energy trees were analyzed in this paper, and some corresponding countermeasures were referred. Related Articles | Metrics

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Superiority, Situation and Potential of Eucalyptus for Bioenergy CHEN Shao-xiong;LIU Jie-feng;SUN Zheng-jun;WU Zhi-hua 2006, 40 (S1):  119-128.  Abstract ( 745 )   PDF (2036KB) ( 1313 )   Save Eucalyptus is not only one of the most important high-yield commercial forest species,but also an excellent species of energy resources.Eucalyptus plantation is the fastest growing with the largest biomass among man-made forests of the world because of its highly effective photosynthesis mechanism.Thanks to the good mechanism of water-adaptability, eucalyptus is strongly drought-resistant.Eucalyptus can also reduce nutrient distribution of per specific leaf area to adapt to adverse environment.Eucalyptus is widely adaptable to the poor and lean lands because it is a typical mycorrhizal tree.In Australia, it is easy to find many special varieties including those possessing the characteritics of good salinity-tolerance, waterlogging-tolerance, cold-tolerance or wind-resistance because eucalyptus trees are widely distributed in various types of climatical and geological environments in Australia.The advantages of eucalyptus as bioenergy resource are; easy management and low maintaining costs; easy propagation; the large amount of buds under the bark lead to strong germinating ability; resistance to disease and pest because of its abundant essential oils.The ways for utilizing eucalyptus as bioenergy resource are: transfer of essential oils to diesel oil; The whole tree is a good fuel material because of the high caloric value; Carbonization as charcoal and activated carbon; Liquefied fuels.It is estimated that currently there are 1.8 millions hm2 eucalypt plantation in China, which continue to increase at the rate up to 10 % per year.Thanks to the quick development of the plantation, the techniques for production and utilization of eucalyptus have been well developed.This paper introduced also the present status of eucalyptus bioenergy production in Australia.Similarly, the time is ripe to produce bioenergy through eucalyptus in China. Related Articles | Metrics

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Preliminary Thoughts on the Establishment of Woody Bioenergy Resources in Yunnan MA Huan-cheng;XU Hui 2006, 40 (S1):  129-133.  Abstract ( 695 )   PDF (935KB) ( 891 )   Save The current situation of exploitation and utilization of bioenergy was introduced.The potential and possibility of exploiting the bioenergy in Yunnan were analyzed.It was proposed that cultivation of woody bioenergy resource in Yunnan should be carried out in a more diverse way.More than 60 oily tree species and their ecological habitats were listed.It was suggested that cultivation of woody bio-energy resource in Yunnan should be in line with development of " hot area" and with ecological recovery in " dry hot valley".The urgent task nowadays is to make resource survey, collect the seed resources and establish the nursery.After then, some demonstration should be carried out. Related Articles | Metrics

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Study on the Countermeasures for Industrial Development of Energy Plant Jatropha curcas L. PAN Biao-zhi;ZHUO Kai-fa;HONG Zhi-meng 2006, 40 (S1):  134-137.  Abstract ( 553 )   PDF (790KB) ( 836 )   Save Jatropha curcas L.is widely used in many aspects.Especially much attention has been paid to it as an important energy plant.The oil content of its seed is 40%-60%, J.curcas L.is a renewable energy plant, which may provide bio-gasoline and biodiesel, and is a most helpful energy plant to produce "green gold" biofuels to instead of "black gold" fossil fuels.This paper analyses its species, distribution, developing status and existing problems and proposes the countermeasures for its sustainable application and industrial development. Related Articles | Metrics

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Research on Superior Tree Selection and Breeding Technology of Pistacia chinensis Bunge SONG Hong-wei;LIU Jun-lei;LU Shao-hui;LIU Qi-shen;MEI Xiang-xin 2006, 40 (S1):  138-141.  Abstract ( 702 )   PDF (759KB) ( 1087 )   Save Henan is one of the regions in China having centralized natural distribution of Pistacia chinensis Bunge.There are many types of natural variabilities in Henan.Through the selection of superior tree for 3 years recently, we had formulated the superior tree standards of P.chinensis, and selected three excellent single trees.The number of fruits, weight of hundred fruits and resistance against pest of these trees are significantly higher than those of the contrast.The cutting and grafting technology of P.chinensis for resolving breeding of P.chinensis was also studied.The survival rates of flock budding in May and June reached 84 % and 66 %, respectively.The technology of flock budding can be extendedly applied further in the production. Related Articles | Metrics

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Prospects of Studies on Jatropha curcas Biodiesel in Sichuan FEI Shi-min;CHEN Xiu-ming;HE Ya-ping 2006, 40 (S1):  193-199.  Abstract ( 669 )   PDF (1298KB) ( 1317 )   Save The related domestic and foreign studies on Jatropha curcas biodiesel were summarized in this paper.Biological and morphological features of J.curcas, their regional differences, and performances of biodiesel from J.curcas were described.The superiority of J.curcas biodiesel in the field of biodiesels was pointed out.The developing pathways of J.curcas biodiesel was put forward.Finally, combining the current states of research and exploitation, the superiority on industrialization of J.curcas biodiesel in Sichuan was analyzed. Related Articles | Metrics

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Introduction and Cultivation of Caper Spurge YANG Tian-zhu;DING Xiang-yang 2006, 40 (S1):  142-144.  Abstract ( 749 )   PDF (563KB) ( 884 )   Save The morphological characteristics, biological characteristics and adaptability of caper spurge are reported.According to the experiment, sowing time should be suitable in early and middle October.After full maturity, the harvest time whould be in early July of the next year.April is the fastest growth period of leaf and bole.Results of experiment show that caper spurge deserves recommendation as an energy plant. Related Articles | Metrics

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Techniques on Tissue Culture and Propagation of Gum Tree DING Xiang-yang 2006, 40 (S1):  145-147.  Abstract ( 710 )   PDF (540KB) ( 889 )   Save Tender buds of gum tree (Copaifera officinalis) were inoculated on the MS culture of different hormone consistencies, and cultivated under the same temperature and different pH values.The result showed that the condition of MS + BA 0.5 mg/L + NAA 0.05 m/L + sugar 30 g/L was the best for division and hyperplasia of the buds.The best culture for reproducing root is 1/2 MS + NAA 1.0 mg/L + sugar 30 g/L + 1 % AC.The optimum pH value range is 5.8-6.2. Related Articles | Metrics

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Resources of the Oak——Developing Strategic Research on Biomass Energy of High-quality Forests LUO Wei-xiang;HAO Huai-xiao;XUE An-ping 2006, 40 (S1):  147-152.  Abstract ( 661 )   PDF (1157KB) ( 1049 )   Save This paper expounds the significance of developing oak high-quality forest biomass energy, the advantages for development, the cultivation of oak trees and biomass conversion technique.The major measures for developing oak high-quality forest are proposed. Related Articles | Metrics

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Jatropha curcas L. Resource and Development Strategy in Yunnan Province LI Kun;YANG Wen-yun;SUN Yong-yu;LI Li 2006, 40 (S1):  153-157.  Abstract ( 529 )   PDF (1055KB) ( 1101 )   Save Yunnan province is the biggest distributing region of Jatropha curcas L.and it is mainly distributed in the dry-hot, dry-warm and sub-humid valley of several big rivers in southern subtropical areas.The individuals that blossom between Apr.and May and fructify between Sept.and Oct., yield plenty of seeds and have the best seed quality.Seedling raising measures are the best silviculture method for bio-diesel stock forest of J.curcas L.It is important to conduct the study on well-bred seeds breeding and productive planting techniques on the basis of the collection and preservation of J.curcas L.germplasm resources, emphasize the demonstration and popularization of the techniques, and combine the development of J.curcas L.forest with the plant restoration, ecological construction, and the agricultural industrial restructuring. Related Articles | Metrics

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An Evaluation Study on Four Energy Tree Species in Northwest Sandy Areas WANG Yu-kui;YAN Yan-xia;LI Gang-tie 2006, 40 (S1):  157-160.  Abstract ( 527 )   PDF (745KB) ( 1179 )   Save Li-6400 portable photosynthesis system and calorimeter were used to carry through the test analysis of 4 planted energy tree species——Haloxylon ammodendron(HA), Hippophae rhamnoides(HR), Elaeagnus angustifolia(EA) and Calllgonum mon-golicum(CM) in Wulanbuh Desert, northwest China to study their characteristics of biomass, heat energy output, photosynthetic rate, evaporation rate and water use efficiency.The results show that all of the 4 species have the characteristics of high biomass, strong regeneration ability after stubble and high heat energy output.Take 6-year-old trees of the 4 species as an example, the biomass are above 8 t/hm2 averagely, and 23 t/hm2 for HA, 17 t/hm2 for HR, 12 t/hm2 for EA and 8.9 t/hm2 for CM respectively.The heat energy output is 435 GJ/hm2(HA), 322 GJ/hm2(HR), 222 GJ/hm2(EA) and 158 GJ/hm2 (CM).Taxis of the 4 species thus obtained: HA > HR >EA > CM according to their biomass and heat energy output and EA>HA> HR > CM according to WUE.The study also indicated that if psammophytes are selected as energy species, the regeneration ability after stubble and water ecophysiology character should be considered besides biomass and data of calorific value. Related Articles | Metrics

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Considerations on Utilizing Sindora glabra as a Plant of Energy Resource LI Rong-sheng;YIN Guang-tian;YANG Jin-chang;ZOU Wen-tao 2006, 40 (S1):  161-164.  Abstract ( 728 )   PDF (749KB) ( 8957 )   Save Sindora glabra Merr.ex de Wit has being increasingly appealed to be utilized for its oil as fuel since 1980,but recommendations on how to start were rare.In this paper, the history of classification and utilization of this plant was described and the existing problems on its utilization as fuel resource were pointed out.The authors concluded that the present available knowledge on S.glabra was not enough for its utilization.Priorities should be put on resource inventory, cultivation, breeding, mechanism of oil producing, harvest technology, combustion property study and construction of information net. Related Articles | Metrics

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Simultaneous Saccharification and Fermentation of Steam Pretreated Lespedeza Stalks for the Production of Ethanol JIANG Jian-xin;ZHU Li-wei;WANG Kun;WANG Wei-gang 2006, 40 (S1):  165-168.  Abstract ( 561 )   PDF (730KB) ( 1042 )   Save Lespedeza stalks were subjected to steam pretreatment at 210℃ for some residence time before simultaneous sacchari-fication and fermentation (SSF).Cellulose-derived glucose was extensively utilized by yeast during SSF.The ethanol yield after steam pretreatment of the lespedeza stalks at 210℃ was 59.3 %, 72.8 % and 62.2 % of theoretical yield when the residence time was 2, 4 and 6 min, respectively, whereas the highest yields fromα-cellulose were 92.7 % of theoretical yield.Steam explosion pretreatment of lespedeza stalks increased the ethanol yields by a factor 4.4, from 16.4% (untreated) to 72.8 % (steam explosion pretreated). Related Articles | Metrics

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Progress of Study on Production of Biodiesel Using Immobilized Lipase and Whole Cell Biocatalyst WANG Wei-gang;JIANG Jian-xin;WANG Kun;SUN Ya-dong 2006, 40 (S1):  168-172.  Abstract ( 661 )   PDF (667KB) ( 963 )   Save Biodiesel is a kind of renewable and environment-friendly energy.Enzymatic synthesis of biodiesel has the advantages of mild reaction condition, low consumption of alcohol, easy recycling of glycerine, etc.In this paper, the progresses of researches and applications of the immobilized lipase and whole-cell biocatalyst in the production of biodiesel,glycerine recycling and new craft of catalyst regeneration are summarized. Related Articles | Metrics

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Advances in the Studies of Yeast Engineering Strain for Degradation of Cellulose HE Gang;CHEN Jie-nan;WANG Yi-qiang;ZHOU Zai-kui;HAN Xiao 2006, 40 (S1):  173-177.  Abstract ( 770 )   PDF (884KB) ( 1009 )   Save Consturction of yeast engineering strains by gene recombination technique is viable for cellulose degradation and ethanol production.In this paper, 2 different yeast expression systems and the cellulase gene cloning and expression in the yeast were summarized.Application foreground of the yeast engineering strains in cellulose degradation was also described. Related Articles | Metrics

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Selection and Breeding of New Varieties of the Oil-bearing Tree Hickory (Carya cathayensis Sarg.) HUANG Jian-qin;ZHENG Bing-song;HUANG You-jun;WANG Zheng-jia;XIA Guo-hua;ZENG Yan-ru 2006, 40 (S1):  178-181.  Abstract ( 488 )   PDF (599KB) ( 935 )   Save Containing more than 70% oil in seeds,hickory is one of the highest oil-bearing plants in the world.The strategy of selection of hickory (Carya cathayensis Sarg.) was determined by analyzing the genetic diversity.143 new varieties were selected initially by using conventional selection method combined with molecular marker.50 fine varieties were reselected including three kinds of varieties from Lin'an, Anji and Chun'an areas, which have high and stable yield, early maturation and large fruit.Comparative analysis was conducted by measuring the economic indexes of fresh fruit weight, dry fruit weight, full seed yield, full kernel yield, total lipid and total protein.The results showed that hickory: 1) possessed further potentiality of variety selection, the variation coefficient of fresh fruit weight was the highest among six economic indexes, while that of total lipid was the lowest; 2) the economic indexes among three areas were not consistent, but area distribution showed significant differences among full seed yields and full kernel yields. Related Articles | Metrics

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Progress of Researches on the Technology of Producing Fuel Ethanol from Lignocellulosic Materials XU You-ming;HUANG Yue-qing 2006, 40 (S1):  182-187.  Abstract ( 718 )   PDF (1186KB) ( 1235 )   Save Based on the analyses of the technologies of producing fuel ethanol from lignocellulose materials in America, Japan and Canada, pretreatment of lignocellulose materials, production technologies for hydrolysis of cellulose to glucose, and fermentation of materials to produce ethanol, as well as comprehensive utilization of the distillers grains were appraised and discussed in this paper.Comparison of different methods for pretreatment of raw lignocellulose material, hydrolysis and fermentation was also conducted.Further prospects about the production of fuel ethanol from lignocellulose materials were described and necessary researches in the next steps were pointed out. Related Articles | Metrics

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Present Status and Prospect of the Research and Industrialization of Forest Bioenergy in Hunan WANG Xiao-ping;OU Ri-ming;LI Chang-zhu 2006, 40 (S1):  188-193.  Abstract ( 704 )   PDF (1204KB) ( 818 )   Save Achievement of management on forest bioenergy in Hunan was explained.Status of research and industrialization of fuel oil plants and bio-diesel were especially assessed and summarized.Based on the characteristics of resource and climate in Hunan, overall layout of development of bioenergy was envisaged, including: developing bioenergy plants as a foundation, developing bio-diesel as major product of liquid fuel oil (including ethanol fuel), and power generation by gasification of agroforestry residues or mixed fuel of coal with agroforestry residues.Breeding of biomass resources must be based on the principle of no-competitive with people for oil and foodstuff and no-competitive with food and oil crops for land.Special fuel plant varieties will be acquired with the characteristics of high-yield, drought-resistance, lean-resistance through biotechnology and normal breeding method. Related Articles | Metrics

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A Study on Resources and Development of Jatropha curcas in Guizhou YU Shu-ming;SUN Jian-chang;CHEN Bo-tao 2006, 40 (S1):  200-202.  Abstract ( 617 )   PDF (657KB) ( 1016 )   Save The resources and biological characteristics of Jatropha curcas in Guizhou, the characteristics of its seed oil and the utilization of this species are introduced.Suggestions on the development and utilization of J.curcas resources in Guizhou are provided. Related Articles | Metrics

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Situation and Strategy of Developing Energy Tree Resources for Fuel Oil in Henan Province LIU Jun-lei;SONG Hong-wei;LIU Qi-shen 2006, 40 (S1):  203-205.  Abstract ( 661 )   PDF (578KB) ( 887 )   Save Based on the survey of main tree resources for fuel oil in Henan province, and the analysis of the situation of these tree resources, the strategy of developing energy tree resources was put forward. Related Articles | Metrics

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Strategy on Developing Bioenergy Forest in Heilongjiang Province LONG Zuo-yi;ZHANG Yu-bo;LI Hong-li 2006, 40 (S1):  206-209.  Abstract ( 487 )   PDF (793KB) ( 885 )   Save By analyzing the main problems of developing bioenergy forest in Heilongjiang province, the author pointed out the favourable conditions of developing bioenergy forest in terms of policy, land, forest resources and capability of science and technology.The strategies in various respects such as policy guidance,inproving cognition, scientific planning,development mode, scientific and technical innovation, social participation, and domestic and international cooperation were mentioned, which will play promoting role to the development of bioenergy forest in Heilongjiang province. Related Articles | Metrics

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Exploration on the Necessity and Feasibility of Establishing Bioenergy Forest Bases in Heilongjiang Province WANG Cheng-yi;LI Jing;LIU Qiang 2006, 40 (S1):  210-213.  Abstract ( 635 )   PDF (836KB) ( 907 )   Save In the 70's of last century, Xanthoceras sorbifolia Bunge.had been introduced into Heilongjiang province and researches on its breeding had been carried out.This tree species was successfully explanted in Mudanjiang, Shuangyashan and Zhaodong of Heilongjiang province.As a garden tree species, X.sorbifolia Bunge.was introduced and grew well in Harbin.In 1999, the experiment of planting X.sorbifolia Bunge.in light-alkaline land of forestry farm in Zhaodong town was succeeded which provided an optimized tree species for the reformation of the light-alkaline land in Songnen plain of Heilongjiang province.The historical opportunity of Heilongjiang should be seized in the respects of the national strategic demand on energy resources, development of local economy, restructuring of industry in forest areas and progress of technology.Through the establishment of a sufficient, clean, economic, safe and sustainable energy structure, as well as through scientific planning, the bioenergy forest base in Heilongjiang province should be established as soon as possible, so as to utilize and exploit bioenergy scientifically and efficiently. Related Articles | Metrics

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Overview of Application of Biomass Energy in China HE Chun-yu 2006, 40 (S1):  213-216.  Abstract ( 648 )   PDF (788KB) ( 837 )   Save Products from biomass raw materials and their applications are briefly described.Principles of formation of various bioenergy products are stated.Process, technology and history of converting biomass energy into other high efficient energy are introduced.It is suggested to accelerate the development of biomass energy, which is advantageous to stability and development of social economy. Related Articles | Metrics

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Considerations on Developing Forest Bioenergy Industry in Anhui Province WANG Dao-jin;YAO Jian-lin 2006, 40 (S1):  217-220.  Abstract ( 535 )   PDF (747KB) ( 882 )   Save The survey on present status of forests as oil-bearing and woody-energy resources in Anhui province has been carried out.The conditions in favor of developing forest bioenergy in Anhui were analyzed.Prospect of development of forestry bioenergy was described and the related countermeasures were suggested. Related Articles | Metrics

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Preliminary Exploration on Litsea cubeba L. as Bioenergy Resource and Its Comprehensive Utilization in Fujian Province CAO Guang-qiu;LIN Si-zu 2006, 40 (S1):  221-223.  Abstract ( 623 )   PDF (591KB) ( 871 )   Save Based on the current situation of resource of Litsea cubeba L.and problems on its application, the comprehensive utilization of this plant, primarily as a biomass energy resource, as well as its resource cultivation were exploved in this paper, so as to provide consultation on extensive exploitation of L. cubeba L.. Related Articles | Metrics

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Current Situation of Tree Species as Biomass Energy Resources in Fujian Province and the Prospect of Its Exploitation HE Guo-sheng;LIN Si-zu;HUANG Yun-peng 2006, 40 (S1):  224-229.  Abstract ( 702 )   PDF (1205KB) ( 1046 )   Save It is of primary strategic significance for economic development and defense safety of our country to explore the replacement of "black gold" with " green gold", by establishing safe and steady " green oil fields" as substitutes for mineral energy resource.The current situation of tree species as biomass energy resources in Fujian province is analyzed in terms of species resources, climatic environment and basic conditions.The prospects of its exploitation and application are also preliminarily explored. Related Articles | Metrics

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Discussion on Development of Major Oleiferous Tree Species in China and Their Energy Forest Construction LI Xiu-quan;XU You-ming 2006, 40 (S1):  229-234.  Abstract ( 681 )   PDF (1185KB) ( 1285 )   Save The shortage of fossil fuel has became one of the most serious problems in the world nowadays.Much attention by all governments is extensively paid to the development of forest biomass-energy technology.12 wild oleiferous tree species which have potential exploitability were briefly introduced in this paper.These tree species included Koelreuteria paniculata.Laxm., Pistacia chinensis Bunge, Sapium sebiferum Roxb., Xanthoceras sorbifolia Bunge, Ldesia palycarpa Maxim., Podocarpus nagi Pilke., Malania oleifera Chun et Lee, Garcinia multiflora Champ., Sambucus williamsii, Toona sinensis (A Juss.) Roem., Cornus walteri Wanger., Elaeagnus mollis Diels.Based on the introduction, several problems related to the development, construction and utilization of biomass energy forest are discussed,and some useful advices were also given. Related Articles | Metrics

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Energy Plant Resources on Hainan Island and Their Potential for Exploitation LI Yi-de;HUANG Quan;ZHOU Tie-feng;XU Han;HUANG Shi-neng 2006, 40 (S1):  240-246.  Abstract ( 781 )   PDF (1305KB) ( 1159 )   Save Basic information about 88 bioenergy plants was summarized based on data of field surveys during the past thirty years on Hainan island.Oil (or hydrocarbons) contents in seeds, kernels, fruits, leaves or stems/roots of these plants, and their potential use for industrial and civil purposes were analyzed.Five species with great exploitable values; Jatropha curcas, Euphorbia tirucalli, Sindora glabra, Scleropyrum wallichianum and Calotropis gigantea were discussed, from their ecological adaptation on Hainan island to potential oil values for uses as energy plants.The following four suggestions on the bio-energy industry development in tropical areas of Hainan island were made: 1) to conduct a comprehensive survey of wild biological energy plant species and their stock;2) to screen out the plants with good quality and genetypes; 3) to develop techniques for their cultivation; 4) to establish industrial production bases gradually. Related Articles | Metrics

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Survey, Problem and Prospect of Woody Plant Resources for Biodiesel Oil in Fujian WAN Quan;XIAO Xiang-xi 2006, 40 (S1):  235-239.  Abstract ( 711 )   PDF (994KB) ( 961 )   Save The geography, climate, forestry situation and major woody oil plants in Fujian province are introduced. Problems in developing woody energy plants are;few woody resources for biodiese oil,small-scale production,relatively few tree species of high quality and productivity, few bases, low management level and low economic efficiency. The tentative plan and prospect of developing forest bioenergy are put forward as follows; strengthening the research on traditional woody oil plants in Fujian, striving for a great breakthrough in the management level and oil yield pew unit area; strengthening the research on selective breeding and manual cultivation of fine tree species; strengthening the researches on comprehensive exploitation and processing technology to enhance economic benefit; increasing investment to research on forestry bio-energy, encouraging, supporting and guiding forest workers and enterprises to plant woody oil plants; establishing bases or biodiesel oil tree farms; strengthening the support and protection for biodiesel oil processing enterprises; encouraging and guiding the consumption of biodiesel oil. Related Articles | Metrics

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Development of Woody Biomass Energy and Establishment of Energy Forest in China GAO Lan;LI Wei 2006, 40 (S1):  265-275.  Abstract ( 523 )   PDF (2276KB) ( 1018 )   Save Woody biomass energy has the relative superiorities of abundant resources, friendly to environment and stable performance.Combining with practical examples in respects of technology, production and market, the necessity and feasibility of developing woody biomass energy are elucidated.Progress, situation and problems of establishing bioenergy forest are analyzed from the respects of resource variation, management and market.Some advices are suggested. Related Articles | Metrics

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Development and Utilization of Fuel-oil Plant Resources in Tropical Regions of China LIANG Kun-nan 2006, 40 (S1):  247-252.  Abstract ( 789 )   PDF (1211KB) ( 863 )   Save The significance of developing fuel-oil plant resources in the tropical regions of China and characteristics of fuel-oil plant are described.The distribution and biological characteristics of 15 kinds of fuel-oil plants with oil content of seeds more than 50 % in tropical regions are introduced.Finally, the existing problems for developing tropical fuel-oil plant and prospects on application of fuel-oil plants in tropical regions are mentioned. Related Articles | Metrics

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Frontiers and Key Technique of Biodiesel-biomass Engineering in China ZHANG Wei-yu;YANG Jing-hui;LIU Yan-jun;DU Chang-cheng;HUANG Jun-xuan;ZHANG Lei;QIU Miao-miao 2006, 40 (S1):  253-256.  Abstract ( 744 )   PDF (759KB) ( 821 )   Save The significance and inevitability of development of biodiesel in several parts of China, actuality and technique direction in our and other counties were expounded.The limitative factors, key technique and market demand for biodiesel development were analyzed.The industrilization prospect of biodiesel and its driving effect for other industries were discussed. Related Articles | Metrics

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Investivation and Survey of Caragana korshinskiim and Hedysarun mongolicum Turcz in Ordos Area LIU Zhao-xia;ZHANG Xiao-juan;YAN Xi-bin 2006, 40 (S1):  256-259.  Abstract ( 535 )   PDF (695KB) ( 990 )   Save Ordos area lies in the south-west of Inner Mongolia.The distribution, environment, biological characteristics and economical traits of the bushes Caragana korshinskiim and Hedysanm mongolicum Turcz was investigated and surveyed in detail, and status of exploitation and utilization was described.In addition, development direction and exploitation approach were suggested. Related Articles | Metrics

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An Overview of the Study on Woody Plants for Fuel Oil and Some Suggestions on Developing Industry of Biofuel Oil in China YANG Jin-chang;YIN Guang-tian;LI Rong-sheng;ZOU Wen-tao 2006, 40 (S1):  260-265.  Abstract ( 604 )   PDF (1182KB) ( 853 )   Save Energy is a vital component of any society, playing a pivotal role in the development.Post oil crises shifted the focus of energy planners toward renewable resources and energy conservation.To exploit biomass fuel oil is one of key measures against the shortage of petrochemical fuel under the circumstance of increasing demand for fuel and diminishing reserves of petrochemical.In this paper, general situation of the studies on the distribution and utilization of woody plants resources for fuel oils is reviewed, and some suggestions on the development of the industry of biofuel oil are posed. Related Articles | Metrics

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An Analysis on Prospects, Problem and Way of Development and Utilization of Forestry Biomass Energy PENG Zuo-deng;HE Bao-hua 2006, 40 (S1):  276-281.  Abstract ( 615 )   PDF (1177KB) ( 889 )   Save On the basis of synthesizing the data of achievements in theory and technology research of biomass energy in the world, a systematic interpretation and analysis on connotation, characteristics, way and area of utilization, present developing situation and existing problems of biomass energy is presented.And in view of Chinese national conditions, a further analysis on the prospect and feasibility of development and utilization of biomass energy, and some specific strategies for developing biomass energy in China are proposed. Related Articles | Metrics

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Exploration on Developing Biomass Energy Resource in Desolated Regions of Inner Mongolia YAN De-ren 2006, 40 (S1):  313-315.  Abstract ( 697 )   PDF (608KB) ( 931 )   Save Based on the exploration of the potential of developing woody biomass in Inner Mongolia, the present status of forest resources was analyzed.Tree species with good potential for bioenergy resource, as well as the superiority of developing oil-bearing crops in Inner Mongolia were introduced, and key problems to be solved urgently were explored. Related Articles | Metrics

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Status Quo and Countermeasures of Forestry Biomass Energy Development in Guangdong Province FENG Jin-tao;WU Qian-ping 2006, 40 (S1):  282-285.  Abstract ( 745 )   PDF (851KB) ( 890 )   Save This paper briefs the status quo of Forestry biomass energy development; puts forward a series of suggestions of countermeasures on comprehensive utilizing technology, planting technology and programme as well as the priority policy for the biomass energy forest, aiming to promote building the society in a more harmonious way. Related Articles | Metrics

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Exploitation Status and Development Strategy Disscusion of Fuel-oil Plants WANG Ya-ping;YAO Xiao-hua;WANG Kai-liang 2006, 40 (S1):  286-290.  Abstract ( 517 )   PDF (1017KB) ( 841 )   Save Energy crisis is threatening mankind's survival and social sustainable development, the exploitation of renewable plant energy has become a hot point in the present world.The status of development and utilization of domestic and international energy plants, the significances of developing these resources are introduced.The existing problems during the development of fuel-oil plant and the prospect are put forward, with the aim arousing more attentions from experts of the world on further research. Related Articles | Metrics

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Woody Oil Plant Resources in China and the Present Situation of Exploitation and Utilization ZHANG Hua-xin;PANG Xiao-hui;LIU Tao 2006, 40 (S1):  291-302.  Abstract ( 789 )   PDF (2408KB) ( 1439 )   Save China is rich with the woody oil plant resources.There are great economic and social significances in exploiting and utilizing it.After referring a lot of relative research literatures, the current situation of woody oil plant resource in China, and its exploitation and utilization as well as perspective of development were analysed in this paper.The existing problems were pointed out and a series of solving countermeasures in exploiting and utilizing woody oil plants were put forward. Related Articles | Metrics

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Evolvement of Research and Exploitation on Elaeagnus molliDiels, an Endemic to China ZHANG Hua-xin;PANG Xiao-hui;LIU Tao 2006, 40 (S1):  303-308.  Abstract ( 542 )   PDF (1305KB) ( 863 )   Save The biological and, ecological character, reproduction technique and exploitation as well as utilization of Elaeagnus mollis were summarized in the paper.And some suggestions on the exploitation and utilization were put forward also. Related Articles | Metrics

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Present Status and Future Prospect of Conversion of Biomass into Energy HE De-liu 2006, 40 (S1):  308-312.  Abstract ( 664 )   PDF (940KB) ( 905 )   Save There are many techniques to convert biomass into energy.The recent development of converting biomass into energy is introduced in this paper, and some suggestions are given for accelerating the development of these techniques in China. Related Articles | Metrics

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Wild Plants Exploitable as Biomass Energy Resources in Ningxia SONG Yu-xia;ZHANG Yuan-run 2006, 40 (S1):  316-317.  Abstract ( 691 )   PDF (378KB) ( 879 )   Save Wild plants which are exploitable as bioenergy resources and distributed in various ecological enviroments in Ningxia, are introduced.Basic applicational parameters are shown,which provid theoretical basis for the protection,exploitation and utilization of these plants. Related Articles | Metrics

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Preliminary Study on Preparation of Hydrogen from Catalytic Pyrolysis of Agroforestry Wastes SHU Xin-qian;BI Dong-dong;DING Zhao-jun;LIN Li-rong 2006, 40 (S1):  318-320.  Abstract ( 637 )   PDF (464KB) ( 893 )   Save Experiment of catalytic pyrolysis to prepare hydrogen was carried out in a self-made fixed-bed reactor, using chestnut shell, peanut shell and sawdust as raw materials and Al2O3, MnO2, CaO as catalysts.Results showed that content of hydrogen in pyrolysis gas increased with increase of pyrolysis temperature, and increased markedly over 600℃.Volumetric fraction of hydrogen was increased about 10 % per 100℃ increment of pyrolysis temperature.Further results showed that catalyst of different types under different dosages possessed different catalytic effects. Related Articles | Metrics

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Discussions on Superiority and Problem of Developing Forestry Biomass Energy in Sandy Areas of China JIA Yu-kui;LI Gang-tie 2006, 40 (S1):  321-325.  Abstract ( 674 )   PDF (989KB) ( 943 )   Save It will be advantageous to sustainable development of economy and ecology by developing forestry biomass energy in sandy areas which will make use of the wasteland to construct woody oil forest and fuel forests in big area, so as to change the inferior state of wasteland into superior resources.The resolution of contradictions among society,environment and economy will be favorable to sustainable development of ecology and economy in sandy areas.In sandy areas, fuel tree resources are abundant, while oil-bearing woody resources are extremely indigente.It is needed to introduce and improve fine species, so as to adapt the need of developing biomass energy. Related Articles | Metrics

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Cloning of Fad2 Gene Fragments from Caragana Intermedia, Constructing of Antisence Fad2 Expression Vector and Its Genetic Transformation in Tobacco WANG Yang-dong;ZHANG Shou-Gong;LI Chun-xiu;QI Li-wang; 2006, 40 (S1):  325-328.  Abstract ( 635 )   PDF (927KB) ( 971 )   Save Two cDNA fragments of fad2 gene were cloned using degenerate primers from Caragana intermedia which is an important bio-erergy plant.The DNA sequence analysis indicated that the fragments contain 452 and 480 bp, and share 88 % of homology with Glycine max Gm fad2-2a in Genbank.Both of the gene fragments were registered in Genbank (AY957393, AY957394).The fragment AY957394(452 bp) was digested with the enzyme BamHI and SacI, and ligated to the corresponding sites of the pBI121 in the antisense orientation.The pBI121 fad2 vector was introduced into Agrobacterium tumefaciens strain LB4404 by electroporation and transformed to leaf of tobacco via A.tumefaciens system.Plantlets were regenerated in vitro by resistance selection on medium containing Ampicillin and Knamycin.PCR amplification results with primer designed according to the fad2 gene fragment and NPT II gene in pBI121 demonstrated that antisense fad2 was integrated into tobacco genomes.The preliminary analysis showed that compared with the untransgenic tobacco plants, the fatty acid content of transgenic tobacco seeds was at the same level, but the lenoleic acid content was 10.3 % less.More research is still doing on the transgenic tobacco plants T1 to know more about fad2 function.The results generated in this experiment will be used to study how to improve the fatty acid composition in oil plants with gene technique according to the biodiesel production. Related Articles | Metrics

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Review of Study on Thermal Value of Plants ZHAO Ting-ning;WANG Qing;YANG Wei-xi 2006, 40 (S1):  329-335.  Abstract ( 598 )   PDF (1297KB) ( 1118 )   Save Earlier researches on thermal value of domestic and foreign plants are summarized.Current progress of researches on thermal values of plants in China were summarized from the following respects: forest plants community, grassland plants community, agricultural ecosystem, shrubs and sandy land plants, park plants, etc. Related Articles | Metrics

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Biomass Energy Plant Species Selection and Bio-diesel Preparation in Jiangsu Province HE Zhen-xiang;WANG Wei;RUAN Cheng-jiang;JIANG Jian-chun 2006, 40 (S1):  335-340.  Abstract ( 661 )   PDF (957KB) ( 1015 )   Save There are 670000 hm2 saline soil resources in Jiangsu province.To develop the oil plant species in those kinds of soils will extremely promote the industrialization of biomass energy in Jiangsu province.In allusion to the characteristics of soil resources in Jiangsu province, in 2001, 40 super individuals were selected from a natural population with 60000 plants of oil species with salinity resistance, seashore mallow, which was introduced from USA and had planted in Yancheng city, Jiangsu province for 10 years.Progenies of 40 selected individuals were tested.Some super clones of seashore mallow were selected with the increase of oil content from 18% to 23%.We acquired the bio-diesel sample in the lab from the seeds of seashore mallow in 2005 and its quality examination report from SINOPEC. Related Articles | Metrics

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Bioenergy Tree Species Styrax tonkinensis and Its Cultivation Techniques JIANG Xiang-mei;XIAO Fu-ming;LIU Zhi-kai;ZENG Zhi-guang 2006, 40 (S1):  341-344.  Abstract ( 707 )   PDF (1053KB) ( 925 )   Save The natural distribution, resource situation, economical and ecological values, biological and ecological characteristics, study progress and development of the bio-energy tree species Styrax tonkinensis were summarized in this paper.The techniques of seed collecting, seedling nursing and afforesting were also developed.Meanwhile, its seed oil content and composition were tested. Related Articles | Metrics

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Prospect on Industrialization of Biodiesel Forest in Yunnan PENG Ming-jun;LANG Nan-jun;ZHENG Ke;ZHANG Li-xin 2006, 40 (S1):  345-348.  Abstract ( 629 )   PDF (861KB) ( 869 )   Save Bioenergy is the only regenerable energy in the world.It can be produced and stored in large scale, and is zero discharge of carbon dioxide.It may provide a new way for solving the problems of energy crisis and environmental control in China.Meanwhile, industrial plantation of a bioenergy producing tree species, Jatropha curcas L., may provide an alternative way for alleviating the rural poverty in Yunnan province.The development of this forest bioenergy industry may be beneficial to sustainable economical development, environment protection and ecological balance. Related Articles | Metrics

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Investigation on Resources of Oil-bearing Forest in Hubei Province WANG Xiao-guang;LEI Xiao-hua;SONG Fei 2006, 40 (S1):  348-352.  Abstract ( 643 )   PDF (938KB) ( 852 )   Save The genotype resource and biological characteristics of oil-bearing forests in Hubei province were investigated and studied.Results showed that oil-bearing forest resource in Hubei is rich and distributed broadly, including 253 species belonging to 54 genera of 31 families,which account for 70 % of the oil-bearing plants in Hubei province (including 365 species belonging to 221 genera of 80 families).Most of these oil-bearing forests in Hubei province are natural and wild.The history of artificially cultivated oil-bearing plants is centuries-old and the potential of development is great.To make best use of the superiority of oil-bearing forests in Hubei province, the ideas and suggestions on the exploitation and utilization of oil-bearing forests are put forward. Related Articles | Metrics

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Study on the Potential of Industrial Exploitation of Woody Biodiesel Species in Dry-hot Valleys of Yunnan ZHAO Lin;LANG Nan-jun;ZHENG Ke;PENG Ming-jun 2006, 40 (S1):  353-357.  Abstract ( 646 )   PDF (1048KB) ( 845 )   Save Owing to its location at low latitude area, abundant heat and light, various climate types and site conditions, dry-hot valleys in Yunnan are rich in plant species including woody biodiesel species.Based on a thorough analysis on regional climate, soil and flora in dry-hot valleys, the potential of industrial exploitation of woody biodiesel species in the dry-hot valleys was elucidated which will provide scientific foundation for making Yunnan a key woody biodiesel producer in China. Related Articles | Metrics

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Preliminary Research on Development Potential of Woody Bioenergy and Countermeasure in State-owned Forest Zone of Heilongjiang Province WANG Shu-liang;ZHANG Tong-wei 2006, 40 (S1):  358-360.  Abstract ( 620 )   PDF (566KB) ( 836 )   Save The status of woody bioenergy resource in state-owned forest zone of Heilongjiang province is introduced.Analysis and evaluation on the development potential of woody bioenergy are summarized.The countermeasure of woody bioenergy development in state-owned forest zone of Heilongjiang provinceis is put forward. Related Articles | Metrics

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Advances of Researches on Germ Plasm Resources and Cultivation of Sapium sebiferum (Linn) Roxb.——A Bioenergy Tree ZHENG Ke;ZHAO Lin;LANG Nan-jun;PENG Ming-jun 2006, 40 (S1):  360-366.  Abstract ( 598 )   PDF (1424KB) ( 1126 )   Save Advances of researches on resources of rural varieties, fine colones resources, selection of breeding,breed seedling introduction, plant disesses and insect pests of Sampium sebiferum are elucidated in this paper which provides scientific veferences for the development of biodiesel industry. Related Articles | Metrics