不同植被类型对沙地土壤理化性质的影响  

Effect of different vegetation types on the physical and chemical properties of sand soil

作　　者：周凤艳[1] 郝春英[1] 张柏习[1] 魏鹏华 刘艳华[3] 

机构地区：[1]辽宁省固沙造林研究所,辽宁阜新123000 [2]彰武县四合城林场,辽宁彰武123208 [3]桓仁县林业局,辽宁桓仁117200

出　　处：《辽宁林业科技》2011年第3期12-14,共3页Liaoning Forestry Science and Technology

摘　　要：为探讨不同植被类型与沙地土壤理化性质的影响,对我国辽西北沙地不同植被类型下土壤容重、土壤养分、水分含量进行了测定和分析。结果表明:辽西北沙地8种典型植被类型土壤容重大小依次为荒草地>油松纯林>弃耕地>樟子松林>山杏林>榆树疏林>松杨混交林>杨树纯林;沙地经过人工固定后土壤的养分含量发生了变化,土壤有机质含量和全氮含量有不同程度的提高,全磷、全钾则有不同程度的下降。在雨季,针叶树林地土壤含水量高于其他植被类型,农业弃耕地在7月份和10月份中土壤表层含水量较高,山杏林地在不同时期含水量均表现为最低。In order to investigate the effect of different vegetation form on the physical and chemical properties of sand soil,the determination of soil bulk density,soil nutrient,moisture content was performed in different vegetation form in northwest of Liaoning Province.The result showed that soil bulk density appeared in the sequence of grasslandpure Pinus tabulaeformis forestsold-fieldPinus sylvestris var.mongolica forestsPrunus sibirica forestselm sparse forestspine-poplar mixed forestspure poplar forests.The content of soil organic matter and total nitrogen was increased in fix sandy land.However,content of total phosphorus and total potassium was decreased in fix sandy land.Soil water content of conifer forests was higher than it in others forests in rainy season.Soil water content of Prunus sibirica forests was lowest than others forests in all period.

关 键 词：植被类型 土壤理化性质 沙地 

分 类 号：S714.2[农业科学—林学]