首页 | 官方网站   微博 | 高级检索  
     

西双版纳热带湿性季节雨林生物量及其分配规律研究
引用本文:冯志立,郑征,张建侯,曹敏,沙丽清,邓继武.西双版纳热带湿性季节雨林生物量及其分配规律研究[J].植物生态学报,1998,22(6):481-488.
作者姓名:冯志立  郑征  张建侯  曹敏  沙丽清  邓继武
基金项目:中国科学院生态系统研究网络(CERN)项目资助
摘    要: 本文采用标准木回归分析法(乔木层、木质藤本)和样方收获法(灌木层、草本层)研究了西双版纳湿性季节雨林生物量及其分配规律。群落总生物量为360.909t·hm-2,其在各层的分配为:乔木层352.563t·hm-2(占群落生物量的97.69%)、灌木层4.737t·hm-2(占1.31%)、木质藤本3.108t·hm-2(占0.86%)、草本层0.501t·hm-2(占0.14%)。群落生物量绝大部分集中于乔木层。乔木层生物量的器官分配为:干241.270t·hm-2(占乔木层生物量的68.43%)、根69.614t·hm-2(占19.75%)、枝37.287t·hm-2(占10.57%)、叶4.392t·hm-2(占1.25%);乔木层生物量的径级分配主要集中于中等径级,胸径在20~80cm间的6个径级,生物量达255.460t·hm-2(占72.46%);生物量在乔木层中垂直分配为:Ⅰ亚层219.365t·hm-2(62.22%)、Ⅱ亚层107.743t·hm-2(30.56%)、Ⅲ亚层25.455t·hm-2(7.22%);生物量大于乔木层生物量0.5%的树种共计26种,其中大于5%的有番龙眼(Pometia tomentosa)(19.67%)、云南玉蕊(Barringtonia macrostachya)(5.44%)、千果榄仁(Terminalia myriocarpa)(5.27%),生物量种类分配反映出优势种明显的特点。乔木层叶面积指数为5.724。

关 键 词:热带季节雨林  生物量  西双版纳

BIOMASS AND ITS ALLOCATION OF A TROPICAL WET SEASONAL RAIN FOREST IN XISHUANGBANNA
Feng Zhili,Zheng Zheng,Zhang Jianhou,Cao Min,Sha Liqing and Deng Jiwu.BIOMASS AND ITS ALLOCATION OF A TROPICAL WET SEASONAL RAIN FOREST IN XISHUANGBANNA[J].Acta Phytoecologica Sinica,1998,22(6):481-488.
Authors:Feng Zhili  Zheng Zheng  Zhang Jianhou  Cao Min  Sha Liqing and Deng Jiwu
Abstract:The biomass and its allocation of a tropical wet seasonal rain forest in Xishuangbanna were studied based on the standard tree regression analysis (for trees and lianas) and clear cut method (for shrub and herb). The total biomass of the community was 360.909t·hm-2,and its allocation in different layers was: tree layer 352.563t·hm-2 (account for 97.69%),shrub layer 4.737t·hm-2(1.31%) ,liana 3.108t·hm-2(0.86%) and herb layer 0.501t·hm-2(0.14%). Most of the biomass of the community concentrated on the tree layer, the organic allocation of the biomass in tree layer was: stem 241.27t·hm-2(68.43%) ,root 69.614t·hm-2(19.75%) ,branch 37.287 (10.57 %) t· hm-2, and leaves 4.392t·hm-2 (1.25 % ); The DBH class allocation of the biomass mainly concentrated on the middle DBH class ,the biomass of six DBH classes from 20cm to 80cm reached 255.460t·hm-2(72.46 %);The vertical allocation of the biomass in tree layer was: the sub-layer Ⅰ 219.365t·hm-2(62.22%),the sub-layer Ⅱ107.743t·hm-2(30.56%), and the sublayer Ⅲ 25.455t·hm-2 (7.22%);There are twenty-six species with biomass over 0.5% of the total biomass of the tree layer, and three species with biomass over 5% ,i.. e. , Pometia tomentosa (account for 19.67% ), Barringtonia macrostachya (5.44% ) and Terminalia myriocarpa (5.27 % ). The species biomass allocation showed that the community had distinct dominant species. The LAI of the tree layer was 5. 724.
Keywords:Tropical seasonal rain forest  Biomass  Xishuangbanna  
本文献已被 维普 万方数据 等数据库收录!
点击此处可从《植物生态学报》浏览原始摘要信息
点击此处可从《植物生态学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号