期刊论文

中文

水土保持通报

1000-288X

2005

25

6

10-13

10.3969/j.issn.1000-288X.2005.06.003

国家自然科学基金项目（30271043）； 国家科技部平台建设项目（20021220）； 国家林业局重点科研项目（2001-07）； 国家重点野外台站项目（2000-076）；

本校为第一机构

对湖南株洲20 a生樟树人工林的降雨分配规律进行了2 a的观测.结果表明,该森林生态系统年降雨输入为1 321.4mm,其中16.869mm以树干茎流形式进入林地,占年降雨量的1.28%,林内穿透水为957.4mm,占72.45%.另外,林冠年截留量为345.749mm,占年降雨量的26.17%.在次降雨中,降雨量越小,截留率越大,雨强越小,林冠截留作用的效益越明显.

The precipitation distribution in 20 year-old artificial forest of Cinnamomum camphora in Zhuzhou City, Hu＇nan Province was studied. Results show that annual average rainfall of the ecosystem is 1 321.4 mm, among them the throughfall, stemflow and canopy interception rate make up 72.5 %, 1.3 % and 26.2 % of the annual precipitation, respectively. In a single rainfall, the less the rain, the higher the interception rate, and the less the rainfall inte...