---

作 者 ：张一平,王馨,王玉杰,刘文杰,刘玉洪

期 刊 ：生态学报 2003年 23卷 12期 页码：2653~2665

关键词：热带季节雨林；橡胶林；降雨；林冠截留；树干径流；穿透降雨；西双版纳；

Keywords:tropical seasonal rainforest, rubber forest, rainfall, canopy interception, stemflow, throughfall, Xishuangbanna,

摘 要 ：季节雨林和橡胶林是西双版纳热带森林系统中可以代表原始林和大面积种植的人工林两种林型 ,采用水量平衡法 ,利用对以上两种林分林冠水文各分量 1 996～ 2 0 0 1年的观测结果 ,初步分析其林冠水文效应 ,结果表明 :一年内 ,季节雨林林冠截留量 660 .6mm,树干径流量 80 .7mm,穿透降雨量 ,85 3.2 mm,分别占同期降雨总量的 41 .43%、5 .2 4 %、5 3.74% ;橡胶林林冠截留量 393.5 mm,树干径流量 1 0 4 .1 mm,穿透降雨量 1 0 96.8mm,分别占同期降雨总量的 2 4 .68%、6.68%、67.85 % ;两种林分森林水文各分量干、雨季差异显著 ;在研究中还发现 ,季节雨林中树干径流量随径级的增大而减小 ,干季出现密林 (季节雨林 )的穿透降雨量大于疏林 (橡胶林 )的反常现象 ;与我国其他地区相比 ,季节雨林和橡胶林有较大的林冠截留率及干流率。

Abstract:The Region of Xishuangbanna is located in the north edge of the distribution of tropical rainforest in the world, and it has remarkable seasonal climate variations which is different from tropical rainforest in other regions. In Xishuangbanna, the canopy of rubber forest (Hevea brasiliensis) plantation often form a single layer structure that is different from the multiplayer canopy found in natural tropical seasonal rainforest. The objective of this research is to compare and quantify the hydrological char...

---