水土保持学报2011，Vol.25Issue(4)：227-232,6.
基于月水量平衡的天山中部天然云杉林森林生态系统蓄水功能研究
Study on Water Resource Conservation of Natural Spruce Forest Ecosystem Based on Month Water Balance in the Middle Tiansh Mountains
摘要
Abstract
Taking the 250 hm2 natural spruce forest ecosystem in the middle Tianshan mountains as study object,with the method of combining watershed test and water balance,the water quantity were analyzed synthetically to determine the effects of different ecosystem components.The results showed that：（1）The 80.39% of the rainfall distribution was completed in the soil layer during the water transformation process;The canopy interception rate was 17.92% of the rainfall.And the influence of forest interception on water quantity of rainfall was enhanced as the forest age increased.The surface runoff only holds up 2.75% of rainfall.The surface runoff amount produced by bare ground was 5.4 times of grassland and 12.5 times of forest ground.（2）The evapotranspiration held 69.53% of the water loss amount of forest ecosystems was the maximum loss measure.The water loss of runoff was only 3.8% of rainfall input;26.67% rainfall was conserved in the soil as net water income of forest ecosystem.（3）The orderliness of rainfall distribution different levels in forest was：Trees transpiration〉soil water storage〉canopy interception〉soil evapotranspiration〉surface runoff〉underground runoff,the percents hold the rainfall one by one was：43.93%,26.67%,17.92%,7.68%,2.75% and 1.05%.关键词
流域尺度/月水量平衡/蓄水功能/地下径流/天山云杉Key words
watershed scale/month water balance/water resource conservation/underground water runoff/Picea schrenkiana var.tianschanica分类
农业科技引用本文复制引用
李海军,张新平,张毓涛,韩占涛,李翔,芦建江..基于月水量平衡的天山中部天然云杉林森林生态系统蓄水功能研究[J].水土保持学报,2011,25(4):227-232,6.基金项目
国家林业局公益性行业科研专项 （）
国家“十二五”科技支撑专题 （）
天山生态站开放基金 （）
