川中丘陵区防护林改良土壤作用研究  

Study on Soil Amelioration of the Protection Forests in the Hilly Area of Central Sichuan

作　　者：胡振宇[1,2] 马钦彦[1] 王金锡[2] 彭培好[3] 罗承德[4] 

机构地区：[1]北京林业大学资环学院,北京100081 [2]四川省林业科学研究院,四川成都610081 [3]成都理工大学地球科学学院,四川成都610059 [4]四川农业大学园林学院,四川雅安625000

出　　处：《安徽农业科学》2009年第30期15009-15013,共5页Journal of Anhui Agricultural Sciences

基　　金：国家"八五";"九五"重点科技攻关项目(85-19-01-001);(96-007-04-06)

摘　　要：研究了川中丘陵区不同防护林类型对土壤理化性质的影响,结果表明:不同防护林类型土壤的粘粒、物理性粘粒含量、土壤容重、土壤孔隙度、毛管水含量、田间持水量、田间有效持水量和土壤有效贮水量、土壤养分贮量和土壤速效养分供应量均比对照地、标准地、有林地、未造成林地高,防护林对土壤有明显的改良作用;其改良程度取决于森林植被的组成和结构,以及林种的配置状况。该研究对严重土壤侵蚀区生态系统的恢复和重建具有重要的指导意义。The article studied the influence of different protection forest types on the physicochemical properties of soil in the hilly area of Central Sichuan. The result showed that the soil clay particle, physical clay particle content, bulk density, porosity, capillary moisture content, field capacity, field effective capacity, effective soil water storage per hectare, soil nutrient storage and soil available nutrient supply were all higher than that of contrast plot, standard plot, forest land and unforested land, which indicated protection forest has evident amelioration on soil ; the amelioration degree depends on the composition and structure of the forest vegetation besides of species collocation. The study has important guiding significance on the ecosystem restoring and reconstruction of severe soil erosion area.

关 键 词：防护林 土壤改良 土壤理化性质 

分 类 号：S151[农业科学—土壤学]