卧龙泉河流域土壤重金属污染的模糊评价

运用模糊评价模型对卧龙泉河流域土壤-植物重金属污染现状进行了评价,结果表明,卧龙泉河上游和中游地区土壤-植物重金属污染严重。其中,卧龙泉河上游土壤污染因子为Cu、Pb,水稻和玉米分别为Pb、Cu、C r、A s和Pb、C r、Hg;王家崴子地区土壤的污染因子主要为A s、Pb、Cd、Zn,水稻和玉米分别为Pb、Cu、Cd、C r、A s和Pb、C r、A s、Hg;氰化厂旱田土和靠山屯林地土为轻污染,污染因子分别为Pb、Zn、Cu、Hg和Hg、Pb;卧龙泉河下游万福旱田土和王家崴子西山坡林地土无污染。王家崴子和万福地区的韭菜Pb、Zn、Hg污染严重。同一地区不同植物的污染因子不同,不同地区水稻或玉米的的污染因子也不同。

The Blurred Appraise of Heavy Metal Pollutions on Soils in Wolongquan River Basin

The appraisal of the present heavy metals pollution is made by blurred mathematics in the soil-plant system of Wolongquan river basin.The results indicated that the heavy metals pollution are terribly serious in the soil-plant system upper and medium Wolongquan river basin.Thereinto,the contaminative factors of soil are mainly Cu,Pb and the contaminative factors of paddy and maize are respectively Pb,Cu,Cr,As and Pb,Cr,Hg in upper Wolongquan River basin,and the contaminative factors of paddy and maize are respectively Pb,Cu,Cd,Cr,As and Pb,Cr,As,Hg in Wangjiawaizi district.The extent of heavy metal pollution are less in dryfarming soils of hydrogenide plant and in woodland soil of Kaoshan village and contaminative factors are respectively Pb,Zn,Cu,Hg and Hg,As,Pb,Cd,Zn.The levels of heavy metals are less than correspounding background of soil heavy metal in dry farming soil of Wanfu district down Wolongquan River and surfacial soil in west hill land of Wangjiawaizi district.The pollution of Pb,Zn,Hg in the leeks are grievous in Wangjiawaizi district and in Wanfu district.Different plants in same district have different contaminative factors and the ripe or maize in different districts have different contaminative factors.