不同郁闭度天山云杉林林冠截留量及穿透雨量特征研究  

Characteristics of canopy interception and throughfall of Picea schrenkiana var.tianschanica(Rupr.)Chen et Fu

作　　者：郝帅 张毓涛 刘端 张洪亮 李翔 

机构地区：[1]新疆林科院森林生态研究所,新疆乌鲁木齐830000

出　　处：《干旱区地理》2009年第6期917-923,共7页Arid Land Geography

基　　金：国家"十一五"科技支撑计划(2006BAD03A1804);国家"十一五"科技支撑计划(2006BAD03A0702/wb08);新疆林业科技专项资金项目(天山北坡经济带山地森林生态系统服务功能及其价值研究)及其价值研究;国家林业公益性行业科研专项(200804022)

摘　　要：天山云杉(Picea schrenkiana var.tianschanica(Rupr.)Chen et Fu)是构成天山山地森林生态系统的主体。选取天山森林生态系统定位研究站不同郁闭度天山云杉林作为研究对象,研究了不同郁闭度条件下天山云杉林冠截留量及穿透雨量的月变化特征、林冠截留量及穿透雨量与总降雨量间的数量关系,通过研究得出结论:林冠截留率与郁闭度表现出显著正相关关系,而穿透雨比率与郁闭度表现出显著负相关关系;穿透雨量、穿透雨比率及林冠截留量的月变化与总降雨量基本一致,林冠截留率则相反;郁闭度为0.8和0.6、0.4和0.2之间的穿透雨量无显著性差异,0.8和0.6与0.4和0.2之间差异明显,林冠截留量相邻郁闭度间均无显著性差异,而不相邻郁闭度之间均差异显著;建立了穿透雨量及林冠截留量与总降雨量间的数学关系,用以定量评价该地区天山云杉林水文生态效益。Picea schrenkiana vat. tianschanica（ Rupr. ）Chen et Fu natural forest is the main forest vegetation in the Tianshan Mountains. This paper chose Tianshan forest ecosystem research station as the research spot, and chose the forest of different densities as the research object, studied the month changes character of the canopy interception and throughfall, and the quantity connections between canopy interception, throughfall and rainfall were analyzed too. The results indicated that canopy interception ratio were the positive correlation with densities, however, the throughfall ratio was the minus correlation with densities;the month changes of throughfall, throughfall ratio, and canopy interception was according with rainfall, however, the canopy interception ratio was opposition with rainfall; the densities had non-marked differences between 0.8 and 0. 6, 0.4 and 0.2, however, the diversities was obvious between 0.8,0.6 and 0.4,0.2 ;the canopy interception border upon densities had non-marked differences,however, the canopy interception non-border upon densities had marked differences;the regression models among the canopy interception, throughfall and rainfall were established to evaluate the eco-hydrological effects of Picea schrenkiana var. tianschanica（ Rupr. ） Chen et Fu in this area.

关 键 词：林冠截留量 穿透雨量 总降雨量 回归关系 天山云杉 

分 类 号：P426.613[天文地球—大气科学及气象学]