Jatrophacurcas is a multi-purpose quick-growing tree species that is drought-resistant and barren-resistant,and is the main raw material for production of bioenergy,biopesticide and biomedicine.At present,the forest biological resources including J.curcas are highly valued in China,and have seen rapid development.The research summary of J.curcas could provide a reference for the comprehensive development and utilization of energy plants.This paper summarizes and analyzes the research progress and the current situation of exploitation of J.curcas in China from the following three aspects:the general situation of J.curcas resources' development in China,including the growth habit,resource distribution,and research history etc;the current situation of basic research,including the biologic characteristics,reproductive and ecological characteristics,seed biological characteristics,good-seed breeding and cultivation physiological ecology etc;and the research on cultivation techniques,including the division of ideal habitat,good-seedling breeding,afforestation techniques,and main plant diseases and insect pests.The existing problems in the research and development of J.curcas in China and its development modelare detailed and relevant suggestions are put forward.
{"title":"Research development and utilization status on Jatrophacurcas in China","authors":"L. Kun, Liu Fangyan, Sun Yongyu","doi":"10.5772/34512","DOIUrl":"https://doi.org/10.5772/34512","url":null,"abstract":"Jatrophacurcas is a multi-purpose quick-growing tree species that is drought-resistant and barren-resistant,and is the main raw material for production of bioenergy,biopesticide and biomedicine.At present,the forest biological resources including J.curcas are highly valued in China,and have seen rapid development.The research summary of J.curcas could provide a reference for the comprehensive development and utilization of energy plants.This paper summarizes and analyzes the research progress and the current situation of exploitation of J.curcas in China from the following three aspects:the general situation of J.curcas resources' development in China,including the growth habit,resource distribution,and research history etc;the current situation of basic research,including the biologic characteristics,reproductive and ecological characteristics,seed biological characteristics,good-seed breeding and cultivation physiological ecology etc;and the research on cultivation techniques,including the division of ideal habitat,good-seedling breeding,afforestation techniques,and main plant diseases and insect pests.The existing problems in the research and development of J.curcas in China and its development modelare detailed and relevant suggestions are put forward.","PeriodicalId":15295,"journal":{"name":"中国农业大学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85303479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-01-01DOI: 10.3724/SP.J.1011.2009.00135
Zhang Jie-xia, Chen Youqi, Wan Li, Li Zhibin
Research on land productivity is elaborated systematically.Focusing on the meaning,impact factor,evaluation methods and main content of land productivity,the study makes a brief comment.With the development of society and economy,and application of mathematical models and 3S technology,land productivity has achieved a comprehensive meaning,and its evaluation goes through a series of processes,from qualitative methods to quantitative methods,and from assisting the choice of land use patterns,regionalization and planning to sustainable land use.The evaluation also progresses from emphasizing particularly on the exact definition of land productivity to material feedback on land system itself to different land use patterns.Since 1995 people have paid particular attention to the ability of self-renewal on land productivity,and the effect of external stress on it as well as the elastic limit to resists external stress on land.Finally,the study comments briefly and proposes future research directions for assessing the sustainable development of land productivity and enhancing the applied research on 3S technology.
{"title":"Main progress and prospects of land productivity research in China.","authors":"Zhang Jie-xia, Chen Youqi, Wan Li, Li Zhibin","doi":"10.3724/SP.J.1011.2009.00135","DOIUrl":"https://doi.org/10.3724/SP.J.1011.2009.00135","url":null,"abstract":"Research on land productivity is elaborated systematically.Focusing on the meaning,impact factor,evaluation methods and main content of land productivity,the study makes a brief comment.With the development of society and economy,and application of mathematical models and 3S technology,land productivity has achieved a comprehensive meaning,and its evaluation goes through a series of processes,from qualitative methods to quantitative methods,and from assisting the choice of land use patterns,regionalization and planning to sustainable land use.The evaluation also progresses from emphasizing particularly on the exact definition of land productivity to material feedback on land system itself to different land use patterns.Since 1995 people have paid particular attention to the ability of self-renewal on land productivity,and the effect of external stress on it as well as the elastic limit to resists external stress on land.Finally,the study comments briefly and proposes future research directions for assessing the sustainable development of land productivity and enhancing the applied research on 3S technology.","PeriodicalId":15295,"journal":{"name":"中国农业大学学报","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83218699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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