不同针叶林对祁连山森林灰褐土理化性质和水源涵养功能的影响  

Effects of Tree Species on Gray-brown Soil Properties and Water Conservation in Qilian Mountains

作　　者：秦嘉海[1] 魏淑莲 金自学 刘金荣[4] 谢晓蓉[4] 

机构地区：[1]河西学院农学系,甘肃张掖734000 [2]甘肃南县西营河林业实验场,甘肃武威733014 [3]河西生态研究所,甘肃张掖734000 [4]西部资源环境化学重点实验室,甘肃张掖734000

出　　处：《水土保持通报》2010年第5期84-87,共4页Bulletin of Soil and Water Conservation

基　　金：国家自然科学基金重点项目"黑河流域生态恢复问题的研究"(40235053)

摘　　要：以祁连山针叶林树种青海云杉、油松、侧柏3种树种为研究材料,探讨了不同树种对祁连山森林灰褐土理化性质和水源涵养功能之间的关系。研究结果表明,土壤孔隙度、团粒结构、物理性黏粒含量均为青海云杉>油松>侧柏;土壤容重、物理性砂粒含量均为侧柏<油松<青海云杉;土壤有机质、CEC均为青海云杉>油松>侧柏;CaCO3含量、pH值、全盐含量均为侧柏<油松<青海云杉;土壤蓄水量和树种枯落物持水量均为青海云杉>油松>侧柏。The effects of tree species（Picea crassifolia,Pinus tabulaeformis,and Platycladus orientalis）on gray-brown soil properties and water conservation in Qilian Mountains are studied.Results show that by total soil porosity,soil granular-structure,and soil clay content,tree species are in the order of Picea crassifolia Pinus tabulaeformi Platycladus orientalis;by soil density and soil sand content,in the order of Picea crassifolia Pinus tabulaeformis Platycladus orientalis;by soil organic matter and CEC,in the order of Picea crassifolia Pinus tabulaeformis Platycladus orientalis;by CaCO_3,pH,and total soil salt,in the order of Picea crassifolia Pinus tabulaeformis Platycladus orientalis;and by soil water storage and litter holding capacity,in the order of Picea crassifolia Pinus tabulaeformis Platycladus orientalis.

关 键 词：针叶林 祁连山 森林灰褐土 理化性质 水源涵养 

分 类 号：S157.5[农业科学—土壤学]