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...
出处
《水土保持通报》
CSCD
北大核心
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)
关键词
土壤性质
土壤重金属
种植年限
苹果园
洛川县
soil property
soil heavy metal
planting age
apple orchard
Luochuan County
