摘要
应用GIS,利用黑龙江省1:20万区域化探资料对三江平原生态环境进行了地球化学质量评价。通过评价得出:从三江平原生态环境单因子评价结果来看,本区绝大部分地区不存在重金属污染的问题,只是零星地区出现了轻度污染的现象,同时,本区Pb元素和Cr元素污染比较分散,而且分布范围比较广些,应该引起重视;从三江平原生态环境重金属综合污染评价结果来看,本区基本上不存在污染的问题,只是在南部的穆棱、西北部的萝北、中部的集贤和双鸭山以及东部的虎林和绕江交接处出现几片地方为轻度污染,而且综合污染指数一般不超过1.2,污染范围只占全区的3.5%,表明本区的生态环境地球化学质量是非常优越的。
The Sanjiang Plain is an important food production base of China, and it plays a great role in food safety and national economy. But, there are few studies on regional geochemistry spatial characteristic of the Sanjiang Plain. Through selecting five heavy metal elements(As,Pb,Cu,Zn and Cl), the heavy metal elements pollution on the ecological environment of the Sanjiang Plain in Heilongjiang Province was evaluated based on GIS. The result showed that the geochemistry environment of the Sanjiang Plain in Heilongjiang Province was good. There was no pollution in most parts of the region. Only Muling in south, Luobei in northwest, Jixian and Shuangyashan in the middle and Hulin showed slight pollution. The pollution index was no more than 1.2, and the pollution regions occupied 3.5 % of the total area. All of these showed that the geochemistry environmental quality of the Sanjiang Plain was good.
出处
《土壤通报》
CAS
CSCD
北大核心
2004年第5期529-532,共4页
Chinese Journal of Soil Science
基金
中科院知识创新工程重大项目"东北地区农业水土资源优化调控机制与技术体系研究"(kzcx1-sw-19)
关键词
三江平原
GIS
地球化学
评价
The Sanjiang Plain
GIS
Geochemistry
Evaluation
