Study on Storm Runoff in Small Scrub Watersheds on Xishan Mountain in Beijing / 北京西山灌木林小流域暴雨径流研究

Making use of the actual runoff datum of 6 watersheds with vegetations of natural secondary shrubbery forest,IUH method was adopted to analyze the major factors which are influencing the amount of runoff in the Xishan Mountain, Beijing.And a prediction of the amount of runoff was made.The results sh...

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Bibliographic Details
Published inForest research (Beijing) Vol. 7; no. 5; p. 506
Main Authors 杨立文, 石清峰, 李昌哲, 张理宏
Format Journal Article
LanguageChinese
Published Beijing Chinese Academy of Forestry 01.01.1994
Subjects
Runoff
Watersheds
Beijing China
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Summary:Making use of the actual runoff datum of 6 watersheds with vegetations of natural secondary shrubbery forest,IUH method was adopted to analyze the major factors which are influencing the amount of runoff in the Xishan Mountain, Beijing.And a prediction of the amount of runoff was made.The results showed that:IUH method can well be applied for small watershed;the natual secondary shrubbery forest posesses fine water supply capacity.When the forest coverage is above 40%,each 10% increase can decrease 4.6% of IUH high discharge,and prolong 9.3% of high discharge time. 利用北京西山次生灌木林地上6个小流域的实测降雨径流数据,采用IUH法,分析影响径流的主要因子,并对降雨径流进行预测,结果表明:IUH法在小流域上应用效果较好,对径流过程的拟合较为一致;天然次生灌木林具有良好的水源涵养功能,在森林植被覆盖率超过40%时,每增加10%,IUH洪峰可降低4.6%,洪峰滞时可延长9.3%.
ISSN:1001-1498