三门峡市蔬菜种植基地土壤环境质量浅析

Soil Environmental Quality of Vegetable Planting Base in Sanmenxia City

为了解三门峡市蔬菜种植基地土壤的重金属和有机污染物的污染状况,选取卢氏县、渑池县和灵宝市三个不同蔬菜种植基地进行监测,采集15个土壤样品,采用单因子和综合污染指数法对土壤的3项理化指标、14项重金属和6项有机污染物进行分析评价。结果表明：三个蔬菜种植基地土壤p H值范围在6.59~7.27之间,均为中性土壤;各监测因子单项污染指数（Pi）≤1,土壤环境质量评价等级均为Ⅰ级,无污染;综合评价土壤污染等级均为清洁（安全）。

To understand the soil pollution state of the vegetable planting base in Sanmenxia city,which is contaminated by heavy metals and organic contaminants, chose three different vegetable planting bases from Lushi County, Mianchi County and Lingbao City to monitor, and collected 15 soil samples, analyzed and evaluated on 3 physical and chemical indicators, 14 heavy metals and 6 organic contaminants of the soil by using the single factor and comprehensive pollution index method. The results showed that the soil PH values of the three vegetable bases ranged between 6.59~7.27, which were neutral, all monitoring factors of single pollution index（Pi） were equal to or less than 1, and the standards of soil quality assessment were all level I without pollution, the standards of comprehensive soil quality assessment were clean（safe）.