哈尔滨菜地土壤重金属潜在生态危害研究

重金属是土壤环境的重要污染物,主要随农业生产中产生的废水、废渣和废气进入土壤.大量积累后很难从土壤中迁出,对土壤的生态结构和功能稳定性造成影响.以哈尔滨菜地为研究对象,采用潜在生态危害指数法,对土壤重金属的潜在危害进行评价.结合近几年来各界学者的研究成果,比较分析哈尔滨菜地重金属污染情况,得出哈尔滨菜地土壤环境Cd超标,生态危害极强.结合哈尔滨菜地实际情况,提出有效的处理措施.

Research on Ecology Hazard of Soils Heavy Metal Pollution

Heavy metals are important contaminants of the soil environment, polluting soils through agricultural wastewater, waste residue and waste gas.It is difficult to remove from the soil and the impact on the structure and function of ecological stabili-ty is great.Taking vegetable fields in Harbin as the study object, this paper adopts potential ecological risk index to evaluate the potential hazards of heavy metals in soil.Combined with the research results of scholars in recent years, a comparative analysis on heavy metal pollution situation in vegetable fields of Harbin were conducted.It is concluded that Cd in Harbin vegetable soil failed the standard and will bring strong ecological harm.Based on the actual situation of Harbin, this study proposed some counter-measures..