许昌市土壤环境质量评价及污染防治对策研究

摘要

对许昌市基本农田、蔬菜基地及畜禽养殖场的土壤进行采样监测,采用土壤单项污染指数和土壤內梅罗综合污染指数对土壤环境质量进行评价.土壤內梅罗综合污染指数评价结果表明,许昌市土壤环境质量状况总体良好.土壤单项污染指数评价结果表明,基本农田中有一个采样点受到镍的轻微污染,蔬菜基地中有2个采样点受到六六六、滴滴涕农药残留汚染.并针对土壤污染提出了科学合理的土壤环境污染防治对策.%Soil sample were collected from the major farmland, vegetable base, livestock farm soils in Xuchang city and assessed the soil organic and inorganic compounds by means of single pollution index method and Nemerow composite index method.The Nemerow composite index shows that the soil environmental quality inXuchang isin good condition.The single pollution index shows that one sampling point of major farmlandis slight contamination of nickel and two sampling point of vegetable base by HCH, DDT pesticide residue pollution.The study puts forward a scientific and reasonable soil pollution prevention and control countermeasures for soil pollution.