祁连山不同林地类型对土壤理化性质和水源涵养功能的影响

以祁连山灌木林、针叶林、阔叶林3种林地为研究材料,探讨不同林地类型对土壤理化性质和水源涵养功能的影响,结果表明：土壤孔隙度、团粒结构、物理性粘粒含量均为灌木林〉针叶林〉阔叶林,土壤容重、物理性砂粒含量均为灌木林〈针叶林〈阔叶林;土壤有机质、全N、速效N、速效P、速效K、CEC均为灌木林〉针叶林〉阔叶林,而CaCO3、pH、全盐含量均为灌木林〈针叶林〈阔叶林;土壤水层厚度、自然含水量、饱和蓄水量、毛管蓄水量、非毛管蓄水量、贮水量均为灌木林〉针叶林〉阔叶林;枯落物积累厚度、枯落物积累干质量、持水量、最大持水率均为灌木林〉针叶林〉阔叶林。灌木林植物种类丰富,郁闭度大,枯落物积累数量多,水源涵养功能强。

Influence of Different Type of Forest Land on Soil Physico-chemical Property and Function of Water Conservation

This paper with the bush forest,needle leaf forest and rich leaf forest of Qilian mountains 3 kinds of forest land is research material,discuss the different type of forest land as soil reason melts,the influence of nature and the selfcontrol function of source of water,show as a result: Soil porosity,granule structure and physicalness glue grain content is bush forest > needle leaf forest > rich leaf forest,soil unit weight and physicalness sand grain content are bush forest < needle leaf forest < rich leaf forest;Soil organic matter,whole N,N of quick result,P of quick result,K of quick result and CEC is bush forest > needle leaf forest > rich leaf forest,and CaCO_3,pH,completely salt content is bush forest < needle leaf forest < rich leaf forest;Soil water layer thickness,natural water content,saturation reservoir storage and woollen pipe reservoir storage,not woollen pipe reservoir storage,store water quantity is bush forest > needle leaf forest > rich leaf forest;Withered fall thing accumulation thickness,withered fall thing accumulation dry quality,hold water quantity,biggest hold water rate is bush forest > needle leaf forest > rich leaf forest.Bush forest plant kind is rich,closing degree big,withered fall thing accumulation quantity much,the self-control function of source of water is strong.