西双版纳不同胶林复合生态系统的生物量及其分配特征  

Biomass and its allocation pattern of monoculture and mixed rubber-tree plantations in Xishuangbanna

作　　者：萧自位[1,2] 王秀华 郑丽[4] 王小李[4] 高丽洪[5] 唐建维[1] 

机构地区：[1]中国科学院西双版纳热带植物园热带植物资源开放实验室,云南勐腊666303 [2]中国科学院研究生院,北京100049 [3]西双版纳州土壤肥料工作站,云南景洪666100 [4]云南省科学技术情报研究院,云南昆明650051 [5]西双版纳州科技情报研究所,云南景洪666100

出　　处：《中南林业科技大学学报》2014年第2期108-116,共9页Journal of Central South University of Forestry & Technology

基　　金：中国科学院农业项目办公室项目(KSCX2-YW-N-44-09);西双版纳州科学技术局项目(200915)

摘　　要：根据4种不同胶林种植模式的样地调查资料,运用已有生物量模型和收获法获取生物量,分析了4种胶林种植模式的生物量组成及其分配特征。结果表明,橡胶＋茶和橡胶＋咖啡和橡胶＋多种植物模式的总生物量分别高于纯胶林69.636 t.hm-2、114.648 t.hm-2和81.924 t.hm-2。活植物体生物量是各胶林类型总生物量的主要组成部分,占97.79%～98.76%;死植物体生物量所占比例为1.24%～2.21%。各胶林组合模式中橡胶树的生物量均存在＂超产＂现象（D〉0）,表明植物多样性对各胶林组合模式中橡胶树的生产力存在正效应,能促进其生物量的积累。In order to quantify the biomass of monoculture rubber plantation and mixed rubber-tree plantations,three plots with a size of 20 m × 25 m were established in each of four different rubber plantations,i.e.,a monoculture rubber plantation and three mixed rubber-tree plantations,respectively,in Xishuangbanna.The constructed biomass regression models of different tree species were used to estimated their biomasses.The biomasses of monoculture rubber plantations were 69.636 t.hm-2,114.648 t.hm-2 and 81.924 t.hm-2 lower than that of mixed Hevea brasiliensis ＋ Camellia sinensis,Hevea brasiliensis ＋ Coffea liberica and Hevea brasiliensis ＋ multi plants plantations,respectively.The biomass of living plants occupied 97.79% ～ 98.76% of total biomass in four different rubber plantations,and dead plants only took up 1.24% ～ 2.21%.The results indicate that the plant species richness had positive effects on rubber biomass and enhanced bio-productivity of integrated rubber-tree plantations.

关 键 词：橡胶林 生物量 农林复合生态系统 西双版纳 

分 类 号：S794.1[农业科学—林木遗传育种]