红河州膏桐人工幼林不同器官含碳率分析  

Carbon Content of Jatropha curcas L. at Honghe Prefecture of Yunnan Province

作　　者：邱琼[1] 李江[1] 孟梦[1] 陈伟[1] 

机构地区：[1]云南省林业科学院热带林业研究所,云南普文666102

出　　处：《安徽农业科学》2013年第18期7891-7892,共2页Journal of Anhui Agricultural Sciences

基　　金：云南省基金"云南热区思茅松人工林土壤有机碳库组成特征研究"(2009CD139);云南省技术创新人才培养项目(2008PY085);云南省2011年度低碳发展专项资金项目"云南省碳汇造林关键技术研究与示范"(2011-48)

摘　　要：[目的]通过对红河州膏桐集中分布的人工幼林进行不同径阶各器官的含碳率测定与分析,为膏桐人工幼林的碳储量计算提供较为可靠的含碳率参数。[方法]采用样地调查和生物量实测方法测定膏桐人工幼林的碳储量。[结果]膏桐各器官的含碳率依次为:果实(44.32%)、主干(43.26%)、树根(41.40%)、树叶(40.52%)、树枝(39.21%),其中果实的含碳率高于其他器官,它们之间存在显著差异,主干基部的含碳率高于树干1.3 m处。膏桐各器官占单株的生物量比例分别为:树干(62.17%)、树根(26.35%)、树枝(6.56%)、树叶(4.87%)、果实(0.05%)。[结论]膏桐全株含碳率的加权平均值为42.36%。[Objective] Through measuring and analyzing the carbon contents of different organs of artificial planted Jatropha curcas L.trees of different diameters located at Honghe prefecture of Yunnan province,to provide the carbon content parameters for calculating the carbon storage of young plantation ofJatropha curcas L.[Method] Sample site survey and actual measurement on biomass.[Result] The carbon contents of different organs of Jatropha curcas L.decreased in the order of fruit （44.32％）,main stem （43.26％）,root （41.40％）,leaf （40.52％）and branch （39.21％）.The carbon content of fruit was significantly higher than other organs; the carbon content of basal part of main stem was higher than the stem part at 1.3 m height.As far as an individual was concerned,the biomass proportion of different organs namely stem,root,branch,leaf and fruit were 62.17％,26.35％,6.56％,4.87％ and 0.05％ respectively.[Conclusion] The weighted average of whole plant carbon content of Jatropha curcas L.was 42.36％.

关 键 词：含碳率 幼林 器官 膏桐 

分 类 号：S753[农业科学—森林经理学]