摘要
以辽河流域水稻主产区—盘锦市为研究区,采用传统统计学和地统计学方法,在GIS技术支持下对研究区耕地表层土壤重金属元素(As、Cr、Cd、Pb、Hg)地球化学特征及空间变异进行了初步研究。研究结果表明:盘锦市耕地土壤重金属元素整体水平较低,土壤环境质量良好,对农田环境质量基本不构成影响,98%以上土壤为一至二级,只有Cd单元素出现少量三级和超三级土壤。
By the use of the traditional statistical theory, methods of geo-statistics and geography information system, the geochemical characteristics and spatial variation of heavy metals （including As, Cr, Cd, Pb and Hg） in the soilsfrom main rice growing regions of Liao River were researched. The results obtained from these collected samples demonstrated that the environmental quality of soils were good, the whole levels of the heavy metal contents in soils were lower and had no effect on environmental quality of soils , there was no pollution above 98% in the rice planted area, just 1.43% area in total soils Cd had exceeded Grade III.
出处
《土壤通报》
CAS
CSCD
北大核心
2012年第5期1094-1097,共4页
Chinese Journal of Soil Science
基金
辽宁省国土资源厅<辽河流域土地利用条件调查评价项目>资助
