LI Xiang-yun,WANG Yu-jie,ZHU Jin-zhao.Study on the Rainfall Redistribution of Phyllostachys edulis at Different Time-scale in Chongqing Jinyun Mountain[J].Research of Soil and Water Conservation,2008,15(06):101-104.
重庆缙云山楠竹林地不同时间尺度降雨量再分配规律研究
- Title:
- Study on the Rainfall Redistribution of Phyllostachys edulis at Different Time-scale in Chongqing Jinyun Mountain
- Keywords:
- NanZhu forestry; rainfall; Jinyun mountain
- 分类号:
- P426.6
- 摘要:
- 楠竹林是缙云山森林生态系统的一种典型植被类型，通过对楠竹林地设置的径流小区2002-2007年水文观测资料研究，定性和定量揭示了该植被类型降雨-径流过程特征的变化规律，并得出降雨过程中，林冠截留、地表径流、地下径流、土壤、枯落物等影响因子对降雨量的分配情况。研究证明，（1）2002-2007年，楠竹林的降雨的年际分布比较稳定；降雨量比较集中出现4-9月，占全年降雨量的72%，峰值出现在7月。（2）地表径流与地下径流与降雨保持密切的响应关系，在对降雨量的分配中，地表径流占30.7%，地下径流占15.2%。（3）楠竹林地的土壤最大分配降雨量为19 mm，枯落物最大分配降雨量为4.6mm，林冠截留分配降雨量13.2%。本研究旨在为长江流域森林生态水文研究中树种选择、植被建设提供参考与数据支持。
- Abstract:
- Phyllostachys edulis is a typical vegetation type of Jinyun Mountain forest ecosystem.By studying on the hydrology data in 2002-2007,the paper reveal the type of vegetation rainfall-runoff characteristics from the qualitative and quantitative,and of the process of change that the process of rainfall,canopy interception,surface runoff,underground runoff,soil,litter,and other factors of the distribution of rainfall.Research shows that (1) 2002-2007,Nanzhu of the annual rainfall distribution are relatively stable; more concentrated rainfall in April to September,accounting for 72% of annual rainfall,the peak in July.(2) Underground and surface runoff and rainfall response to maintain close relations.In the distribution of rainfall,surface runoff accounted for 30.7%,15.2% of the underground runoff.(3) In Nanzhu forestry,the largest soil of rainfall distribution to 19 mm,the largest litter of rainfall distribution to 4.6mm,canopy interception distribution of rainfall in 13.2%.The purpose of this study for the Yangtze River Basin forest ecosystem in the hydrological study species selection,vegetation and provide information and data support.
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备注/Memo
收稿日期:2008-7-5;
基金项目:“十一五”林业科技支撑计划项目（2006BAD03A1802）
作者简介:李香云（1976- ），女（汉），山西吉县人，博士生，研究方向为林业生态工程。E-mail：xiangyunlee@263.net
通讯作者:王玉杰（1960- ），男，教授，博士生导师，主要研究方向为林业生态工程和土壤侵蚀。E-mail：wyujie@bjfu.edu.cn