摘要
针对城市表层土壤重金属污染问题,以我国某城市为研究对象,采用克里格插值法绘制8种重金属元素在该城市的空间分布图;将单因子指数法和内梅罗综合指数法相结合,对该城市不同区域重金属污染程度进行评价;基于对流-弥散方程(CDE)建立模型,确定污染源的位置,有助于从源头上预防和减少重金属的污染。
In order to solve the problem of urban surface soil heavy metal pollution, the paper takes a city in China as a research object, using kriging to draw a spatial distribution map of eight kinds of heavy metal elements, combining single factor index and Nemerow integrated index to evaluate different regional heavy metal pollution, establishing a model based on CDE to determine the source of pollution, so as to prevent and reduce heavy metal pollution from the source.
出处
《科技管理研究》
CSSCI
北大核心
2014年第12期242-246,共5页
Science and Technology Management Research
基金
湖南省自然科学基金项目"科技成果奖励综合评价方法研究"(09JJ3134)
关键词
土壤重金属
污染源
对流-弥散
克里格插值
soil heavy metal
source of pollution
convection- dispersion
Kriging
