摘要
重金属污染分布图主要为政府防治、公众了解污染而设计 ,选取内容包括重金属污染种类及其影响因素 ,兼顾科学性和实用性 ,对图件的编制技术程序和意义进行简要说明 .
Heavy metal pollution in soil is one of the major enviromental problem in Beijing suburb.In order to understand fully the distribution of heavy metal pollution in soil,it's imperative to compile the distribution map. Four factors are selected to express the pollution,there are placename,soil type,heavy metal element and land use actuality.The technological points include preparing basic data,establishing line meaning in the map,using three dimension method and making the map more readable.Several cutlines are chosen to stand different contents on the map.Finally,the paper suggests some applications of the map.
基金
北京市自然科学基金重大项目 (6 990 0 0 2 )
