嘉陵江流域低山丘陵区几种主要森林类型水文特征研究  

A Study on the Hydrologic Traits of the Main Forest Types in Low Mountain and Hilly Areas in the Valleys of the Jialingjiang River

作　　者：朱志芳[1] 覃志刚[1] 陈林武[1] 朱绍勇 

机构地区：[1]四川省林业科学研究院,四川成都610081 [2]成都市绿化工程队,四川成都610081

出　　处：《四川林业科技》2003年第3期31-35,共5页Journal of Sichuan Forestry Science and Technology

基　　金：国家"十五"科技攻关项目<长江上游低山丘陵区水源涵养型植被建设技术研究与示范>和<嘉陵江上游低效人工林改造与坡面治理技术研究与示范>的部分内容。

摘　　要：本文分析了嘉陵江低山丘陵区碗厂沟小流域湿地松林、桤木林、刺槐林以及桤松混交林四种森林类型垂直结构水文特征,得出不同森林类型呈现出不同的水源涵养特征。林冠截流:湿地松>刺槐林>混交林>桤木林;枯枝落叶持水:刺槐林>桤木林>混交林>湿地松林;森林土壤层贮水:桤木林>混交林>刺槐林>湿地松林。In order to provide scientific evidence for selection of tree species,spatial arrangement in the establishment of water conservation forests in the low mountain and hilly areas in the upper reaches of the Yangtze River,the hydrologic traits of the vertical structure of the four forest types(Pinus elliotii,Alnus cremastogyne,Robinia pseudoacacia,and mixed pine and alder forest)in Wancanggou small watershed in the valleys of the Jialingjiang River were analyzed in this paper.The results have shown that the hydrologic traits of the four forest types vary from each other:1.Canopy interception:Pinus elliotii>Robinia pseudoacacia>mixed pines and alder forest>Alnus cremastogyne.2.Waterretaining capacity of litter layer:Robinia pseudoacacia>Alnus cremastogyne>mixed pines and alder forest>Pinus elliotii.3.Waterstorage capacity of forest soil:Alnus cremastogyne>mixed pine and alder forest>Robinia pseudoacacia>Pinus Elliotii.

关 键 词：森林类型 林冠截流 枯枝落叶层持水 林地土壤层贮水 

分 类 号：S715[农业科学—林学]