摘要
以流溪河流域针阔混交林为研究对象,对林分样地进行降雨截留实测与模拟研究.结果表明:林内穿透雨量与降雨量呈线性相关;穿透系数与降雨量呈对数相关;林冠截留量与降雨量呈幂函数相关;截留率与降雨量呈对数相关.以降雨强度、穿透系数和树干茎流率数据为基础,进行了林冠截留量模型模拟,实测表明该模型能较准确地估算针阔混交林分的林冠截留量.
With the data collected from the mixed forest stands of broadleaf and coniferous trees located at Liuxihe small watershed, we carried out a research program into the survey of rainfall interception in sample stands. The results show that there is a linear regression between the through-fall and precipitation; there is a logarithmic regression between the through-fall coefficient and precipitation; there is an exponential regression between canopy interception and precipitation; and there is a logarithmic regression between the interception rate and precipitation. Based on these results we set up a simulated model for canopy interception about through-fall, stem-flow rate, precipitation and rainfall intensity. The model can forecast the capacity of canopy interception of mixed forest stands in a rather precise way.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2007年第1期60-63,75,共5页
Journal of Central South University of Forestry & Technology
基金
广州市科技局重点攻关项目计划(2000-2-059-01)
