杉木植被小流域产流特征研究  

A Study of the Runoff Characteristics of Cunninghamia lanceoiata Forest Watershed

作　　者：孙阁[1] 张增哲 

机构地区：[1]中国科学院生态环境研究中心 [2]北京林业大学水土保持系

出　　处：《北京林业大学学报》1989年第2期55-63,共9页Journal of Beijing Forestry University

摘　　要：应用基准集水区法比较系统地研究了杉木植被小流域的产流特征。采用Hewlett等所确立的通用水文过程线分割方法,对10场典型降雨径流过程分析后确认:当地主要产流类型有两类;当地条件下杉木植被小流域水文响应值较大,水源涵养作用不佳,原因在于当地森林植被处于中幼林期,且破坏严重。建立了一日降雨径流数学模型,可用于预报一场降雨的日平均流量,确定不同小流域产流差异的降雨量临界值。The runoff characteristics of Cunninghamia lanceoiata forest watershed was studied with the method of Standard Watershed Experiment, The analysis of 10 larger storm hydrographs based on the method given by Hewlett and Hibbert (l967)reveal that this forest watershed' Re is relatively large, and the benefit of water conservation is relativel large, and the benefit of water conservation is not obvious as expected; the reason is that the vegetation is not in full growth and is destroiec seriously. The runoff characteristics were divided into two types. Rainfall runoff model is established. It will be used one day in forecasting rainfall runoff discharge and calculating the limiting precipitation whicl determine the discharge differences between different watersheds.

关 键 词：杉木植被 小流域 产流特征 基准集水区法 森林 水文效益 

分 类 号：S715.7[农业科学—林学] S715.3