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作 者:谢颂华[1] 郑海金[1] 杨洁[1] 喻荣岗[1]
出 处:《水土保持学报》2010年第3期35-38,共4页Journal of Soil and Water Conservation
基 金:水利公益性行业科研专项经费项目"水土保持措施调控鄱阳湖径流泥沙技术研究"(200801066)
摘 要:为了探讨南方红壤丘陵区水土保持植物措施的防洪减流效应,采用野外样地和试验小区相结合的方法,对4种措施类型(马尾松林、湿地松林、板栗林和马尾松+板栗林)、3种层次结构(纯草、纯乔、乔-草)的林地水文效应进行科学分析,结果表明:(1)不同人工林地冠层截留效应排序为湿地松林>马尾松林>马尾松+板栗林>板栗林,其枯落物层拦蓄径流效应和土壤截持地表径流效应均为板栗林>马尾松+板栗林>马尾松林>湿地松林;(2)草本单层结构的减流效应要优于乔木单层结构,与对照相比,乔-草复层结构的减流率达到90%以上。To study effect of runoff reduction through vegetation measures of soil and water conservation in hilly-land area southern China,hydrologic function of four types(i.e.Masson pine,Pinus elliotii,Chinese chestnut,Masson pine plus Chinese chestnut,)and three layers(i.e.monolayer grass,monolayer tree and multilayer vegetation) of forest were scientifically analyzed by both sample-plot and runoff-plot methods.The results showed that in terms of the interception amount of forest canopies,stood ranked in the descendant order of Pinus elliotii,Masson pine,neddle-broad leaf mixed forest and Chinese chestnut.While,in terms of the effective interception amount for litter and water holding of soil,stood ranked in the same descendant order of Chinese chestnut,neddle-broad leaf mixed forest,Masson pine and Pinus elliotii.The effect of runoff reduction through monolayer grass was better than that through monolayer tree.Compared with the control,the rate of runoff reduction through multilayer vegetation measures was all above 90 percent.
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