洛川县不同种植年限果园土壤基本性质与重金属含量评价  

Assessment on Contents of Heavy Metals and Properties of Apple Orchard Soil with Different Planting Ages in Luochuan County

作　　者：张彩云[1] 庞奖励[1,2] 申海元[1] 

机构地区：[1]陕西师范大学旅游与环境学院,陕西西安710062 [2]中国科学院地球环境研究所黄土与第四纪地质国家重点实验室,陕西西安710075

出　　处：《水土保持通报》2009年第1期32-35,39,共5页Bulletin of Soil and Water Conservation

基　　金：国家自然科学基金项目(40471119;40571154)

摘　　要：研究了洛川县20 a与60 a果园土壤基本性质和土壤中的重金属含量,并对土壤环境质量进行了评价。结果表明,洛川县20 a与60 a果园土壤为壤土,CaCO3含量最大值为141.71 mg/kg,土壤TOC平均含量大于1.26%,土壤pH值在7.95~8.62之间,土壤特征基本满足苹果生长的要求。20 a与60 a果园土壤重金属含量均略大于其背景值,砷的最大平均含量值为14.4 mg/kg,铬为84.4 mg/kg,铜为31.7mg/kg,铅为24.8 mg/kg,镍为33.1 mg/kg,锌为144.5 mg/kg,但两果园土壤环境指标的单项污染指数均小于1,综合污染指数小于0.7,土壤环境质量为清洁。Soil properties and the contents of its heavy metals in the 20 and 60 age apple orchards of Luochuan County were studied and its environment quality was evaluated.Results show that all the soil samples collected from the orchards were loamy soil with the maximum content of CaCO3 being 141.71 g/kg,the average content of organic matter being more than 1.26%,and pH value being 7.95~8.62.The soil basically meets the requirements of green apple production.The contents of soil heavy metals in the orchards were hi...

关 键 词：土壤性质 土壤重金属 种植年限 苹果园 洛川县 

分 类 号：X53[环境科学与工程—环境工程]