重庆市缙云山不同林分对坡面产流的影响  

Effect of Different Vegetation Types on Runoff Generation of Slope Land in Jinyun Mountains of Chongqing City

作　　者：申彦科[1,2] 王玉杰[1,2] 齐娜[1,2] 杨小梅[1,2] 李耀明[1,2] 成晨[1,2] 

机构地区：[1]北京林业大学水土保持学院,北京100083 [2]水土保持与荒漠化防治教育部重点实验室,北京100083

出　　处：《水土保持通报》2009年第5期80-84,共5页Bulletin of Soil and Water Conservation

基　　金：“十一五”国家科技支撑项目“重庆北部水源区水源涵养林构建技术试验示范”(2006BAD03A1802);国家自然科学基金项目(30671661)

摘　　要：针对三峡库区理水调洪型植被的建设问题,在三峡库区重庆缙云山4种典型林分(混交林、阔叶林、楠竹林和灌木丛)建立坡面径流小区,对天然降雨过程和由降雨产生的地表径流进行观测。结果表明,不同林分地表径流量的平均值,从大到小依次为楠竹林、阔叶林、混交林和灌木丛,分别是3.094,1.972,1.751和1.170mm。混交林、阔叶林和灌木林的林地地表径流量,均小于楠竹林的地表径流量,且三者之间差异不显著。不同林分地表径流量与降雨量存在显著的相关关系,与降雨强度关系不显著。在同一降雨条件下,不同林分地表径流变化趋势存在一定差异,且均是楠竹林地表径流量最大。因此,重庆缙云山不同林分中,灌木丛理水调洪功能最强,楠竹林理水调洪功能最差。To study the effects of different vegetation types on runoff generation on slope land in the Three Gorges reservoir area of the Yangtze River,4 standard runoff plots with different vegetation types were laid out in the Jinyun Mountains,Chongqing City.The different vegetation types included mixed broadleaf—conifer forest,broad-leaved forest,Phyllostachys pubescens forest,and shrub.Rainfall and surface runoff from the plots were measured.Results show that vegetation types,in terms of the averaged value of sur...

关 键 词：缙云山 植被类型 地表径流 

分 类 号：S714[农业科学—林学]