水土保持研究2012，Vol.19Issue(1)：56-59,4.
漓江上游典型森林群落内外降雨特征研究
Research on Rainfall Characteristics Through Typical Forest Community in Upper Reaches of Lijiang River
摘要
Abstract
From 2009 to 2011,a typical forest community of Schima superba was monitored and the interception effect of tree canopy on precipitation was analyzed in upper reaches of Lijiang River.The results showed that the precipitation distribution of the year was irregular and the rainfall mainly happened in rainy season,which accounted for 82.39% of the total,while only 17.61% was distributed in dry season.It seemed that 2011 was a dry year,but the precipitation with an average annual value was higher than the last few years,and the precipitation mostly occurred from May to June（63.59%）.The largest rainfall was 319.8 mm in 16 hours and rainfall intensity was 20.0 mm/h.Furthermore,the single rainfall（50 mm） during the study period which accounted for 65.25% of total precipitation.The throughfall was positively correlated with precipitation outside,but the relationship between canopy interception rate and precipitation outside was complex.The coefficient of variation（CV） was 39.81%,when rainfall was less than 2.50 mm/h,while the CV was 5.64% when rainfall was more than 8.00 mm/h.This research has provided the scientific basis for understanding forest hydrological functions and developing water resources allocation strategy as well as improving water conservation forest management practice in this area.关键词
林冠截留/穿透降雨/森林群落/漓江Key words
canopy interception/throughfall/forest community/Lijiang River分类
农业科技引用本文复制引用
王金叶,李海防,段文军,唐东明,王绍能,刘兴伟,黄华乾..漓江上游典型森林群落内外降雨特征研究[J].水土保持研究,2012,19(1):56-59,4.基金项目
国家自然科学基金项目“漓江上游森林群落结构与水文过程调控机理研究” （）
