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首页> 外文会议>ICEEP 2012 >Spatial distribution and Evaluation of Cadmium in agricultural soils based on GIS: A Case study of Chaoyang City in China
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Spatial distribution and Evaluation of Cadmium in agricultural soils based on GIS: A Case study of Chaoyang City in China

机译：基于GIS的农业土壤中镉的空间分布与评价 - 以朝阳市为例

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To identify the concentration and spatial distribution of cadmium (Cd) in agricultural soils, 207 soil samples were collected from Chaoyang and analyzed based on pollution index methods and GIS. The concentration of Cd in the soils of Chaoyang ranged from 0.030 to 0.687 mg/kg, with an average concentration of 0.246 mg/kg. The evaluated results of Cd in agricultural soils of Chaoyang shows that the pollution excess rate is 2.90%, the total agricultural soil environment of Cd was still clean, but some areas were accumulated by Cd. The differences between two evaluated methods indicate that evaluated criteria had a direct impact on the evaluation results, compared to integrated pollution index, the Geoaccumulation index method was more accurate and objective.
机译：为了确定农业土壤中镉（CD）的浓度和空间分布，从朝阳收集207种土壤样品，并根据污染指数方法和GIS分析。朝阳土壤中Cd的浓度范围为0.030至0.687 mg / kg，平均浓度为0.246mg / kg。朝阳农业土壤中CD的评价结果​​表明，污染超额率为2.90％，CD的农业土壤环境总土壤环境仍然清洁，但有些地区由CD累计。两种评估方法之间的差异表明，与综合污染指数相比，评估标准对评估结果有直接影响，地质灾分指数方法更准确和客观。

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