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川中长江防护林紫色土侵蚀产沙研究
引用本文:张俊远,高华东.川中长江防护林紫色土侵蚀产沙研究[J].四川林业科技,1996,17(3):16-22.
作者姓名:张俊远  高华东
作者单位:[1]四川省林业干部学校 [2]四川省林业科学研究院
摘    要:川中防护林林分类型不同,承受降雨过程产生的地表径流和土壤侵蚀产沙量也不同,钙质紫色土上其减少减沙贡献最大的落叶灌木林,其次是桤柏混交林,主要是枯林落叶层的作用,马尾松疏林土壤蚀量是马尾松柏木材的2.7倍。随着降雨量增大和雨强增强,冰碛黄土上松柏混交林减水减沙效果最大,是一种川中地区典型的水土保持林类型。针对叶林的削减水沙的作用是有限的。松柏混交林产沙率变化与该林分下洪峰流量变化相一致,马尾松疏林产

关 键 词:防护林  紫色土  减沙  土壤侵蚀

A Study of the Erosion Sand Yield of Purple Soil in the Protection Forest of in Middle Sichuan
Zhang,Junyuan,Xie,Zhengming,Hou,Guangwei.A Study of the Erosion Sand Yield of Purple Soil in the Protection Forest of in Middle Sichuan[J].Journal of Sichuan Forestry Science and Technology,1996,17(3):16-22.
Authors:Zhang  Junyuan  Xie  Zhengming  Hou  Guangwei
Institution:Zhang Junyuan Xie Zhengming Hou Guangwei (Sichuan Forestry Cadre School) Gao Huadong Hu Zheny Wang Jinxi (Sichuan Researd Institute of Forestry)
Abstract:Various kinds of protection forest of the changjiang River in middle Sichuan will bring about different surface runoff and erosion sand yield during a rainfall process.As far as calcic purple soil is concerned,deciduous forest and shrubbery have a very great effect in the reduction of water and sand,and mired alder and cypvess forest second.This paper alss report other researches concerned.
Keywords:Proteetion  forest  of  the  changjiang  River  in  middle  Sichuan  purple  soil  Sand  reduction
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