基于GIS的松嫩平原南部黑土区土壤环境地球化学质量评价

黑土区向来是我国重要的商品粮生产基地,对于我国的粮食安全和国民经济的稳定有着举足轻重的作用,但是,大范围的关于黑土区环境地球化学特征的研究却很少。本文主要利用黑龙江省松嫩平原南部1∶25万区域化探资料,选取五种重金属元素在GIS支持下对黑龙江省黑土区环境地球化学质量进行了评价。评价结果表明,本区的地球化学环境质量是比较好的,98%以上地区处于无污染的水平,只是局部地区处于轻度污染的水平。可见该区土壤质量较好,是无公害绿色产品生产的优选之地。

Geochemical Environmental Quality Evaluation on Black Soil Region in the South of Songnen Plain Based on GIS

The black soil region is the important food supplies base of China.It plays a great role in food supplies security and national economy.But there are few studies of regional geochemistry spatial characteristic of the black soil region.By selecting five heavy metal elements,the geochemistry environmental quality of the black soil region in Heilongjiang province is evaluated based on GIS.The result shows that the geochemistry environment of the black soil region in Heilongjiang province is good.There is no po...