西双版纳热带人工雨林生物量及净第一性生产力的研究  

Biomass and net primary productivity of artificial tropical rainforest in Xishuangbanna.

作　　者：唐建维[1] 张建候[1] 宋启示[1] 黄自云[1] 李自能 王利繁 曾荣 

机构地区：[1]中国科学院西双版纳热带植物园热带雨林生态系统定位研究站,勐腊666303 [2]西双版纳国家级自然保护区管理局勐仑保护所,勐腊666303

出　　处：《应用生态学报》2003年第1期1-6,共6页Chinese Journal of Applied Ecology

基　　金：中国科学院重大项目 (KZ95T 0 4 0 2 );国家科技部"2 0 0 1年度基础研究快速反应支持项目 ( 2 0 0 1CCB0 0 6 0 0 )" .

摘　　要：通过标准木法和收获法研究分析了西双版纳热带人工模拟雨林的生物量及净第一性生产力 .结果表明 ,林分总生物量约为 390 .4t·hm-2 ,其中乔木层生物量达 36 2 .5t·hm-2 ,占总生物量的 92 .8% ,灌木层生物量为 19.3t·hm-2 ,占 4.9% ,层间植物 (包括附生植物 )的生物量为 3.6t·hm-2 ,草本层生物量为5 .0t·hm-2 .分别占 1.3 %和 0 .9% .林分净第一性生产力为 2 2 2 7.3g .m-2 .年 -1,其中乔木层的净生产力为 15 5 3.5 g·m-2 .年 -1,占整个林分净生产力的 6 9.7% ,灌木层、草本层及层间植物分别仅占 2 6 .9%、2 .4%和 1.0 % .其器官分配比例以茎最高 ,达 42 .0 % ;其次为叶 ,占 30 .2 % ;枝仅占 13 .5 % .叶面积指数为 7.0 6 1.同时建立了林分优势种及乔木层各器官生物量的优化回归模型 .The stand biomass and primary net productivity of artificial tropical rainforest in Xishuangbanna were estimated, based on sample tree method and harvesting method. The results showed that the standing biomass was 390.4 t·hm -2, of which,362.5 t·hm -2 (92.8%) were contributed by tree layers. The biomass of shrub and inter-layer plants (including epiphytes) was 19.3 t·hm -2(4.9%) and 3.6 t·hm -2(0.9%), respectively, and that of herbaceous layers was 5.0 t·hm -2. The primary net productivity of the stand was 2227.3 g·m -2·yr -1, of which,1553.5 g·m -2·yr -1(69.7%) were contributed by tree layers. In the allocation of primary net productivity in different parts of trees stems showed the highest net productivity,accounted for 42.0%. Leaves and branches were accounted for 30.2% and 13.5%, respectively. The leaf area index (LAI) was 7.061. The optimum regression models of different dominant plants and organs of the sample trees of tree layer in the artificial tropical forest were built.

关 键 词：生物量 净第一性生产力 热带人工雨林 

分 类 号：S718.55[农业科学—林学]