GIS在土壤重金属污染评价和安全预警的应用

Assessment in soil heavy metal pollution and safety pre-warning based on GIS

  • 摘要: 日趋严重的土壤重金属污染问题,不仅会对人类健康造成危害,而且可能引起其他的环境污染.但由于土壤污染面源广且污染程度不均匀,造成土壤污染状况难以被科学的评价和有效的安全预警.地理信息系统(GIS)因其强大的空间分析功能可以有效地解决土壤重金属评价及安全预警的问题而得到越来越广泛的应用.文中综述了国内外GIS技术的发展并探讨了GIS与地统计分析方法的有效结合在土壤重金属污染评价与预测预警方面的应用,结合赣州市城区土壤重金属污染问题的研究,提出了GIS在土壤重金属污染评价与安全预警方面的发展前景.

     

    Abstract: The growing problem of soil heavy metal pollution will not only harm human health, but also cause other environmental pollution. However, the soil pollution status is hard to be scientifically evaluated and effective safety warning due to the wide source of soil pollution and the uneven degree of pollution. Because of its powerful spatial analysis function, GIS can solve the problem of soil heavy metal evaluation and safety early warning and get more and more widely application. This paper summarizes the development of GIS technology both at home and abroad and discusses the application of the effective combination of GIS and geostatistical analysis methods in the evaluation and prediction of heavy metal pollution in soils. On the basis of the study on heavy metal pollution in urban soils of Ganzhou City, this paperprospects the pollution evaluation and early warning on safety development.

     

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