重庆市北碚区疏菜地土壤铅含量及影响因素分析  

Investigation on Lead Content and Influencing Factor in Vegetable Plantation in Beibei District of Chongqing

作　　者：袁波[1] 傅瓦利[1] 蓝家程[1] 张婷[1] 彭景涛[1] 

机构地区：[1]西南大学地理科学学院,重庆400715

出　　处：《水土保持研究》2011年第5期179-182,200,共5页Research of Soil and Water Conservation

基　　金：重庆市移民局课题(200909);重庆市自然科学基金(40701179)

摘　　要：为了解重庆市北碚区新规划蔬菜地以及老蔬菜基地土壤铅含量及分布状况,为蔬菜生产提供基础资料,2010年8月通过野外采样及室内测试方法对北碚区疏菜地耕层土壤铅含量进行了调查分析研究,同时采用单项污染指数法进行了污染程度评价。结果表明:北碚区蔬菜地土壤耕层铅平均含量为43.92mg/kg,最高值是最低值的4.71倍;通过计算污染指数得出北碚区的蔬菜地土壤在铅含量水平上完全满足无公害蔬菜生产,基本能满足绿色蔬菜生产;影响研究区域内土壤铅含量的自然因素主要是土壤类型和土壤理化性质中的pH值、黏粒含量、有机质含量,人为因素主要是距离公路的远近。To understand the contents of lead and distribution of the promising new planning and old vegetable plantation in Beibei District of Chongqing,and provide basic data for vegetable production,in August 2010,we made an analysis of the lead contents of topsoil in vegetable plantation of Beibei District through field sampling and test in lab,and adopted single pollution index method to evaluate the pollution degree.Results show that： the average content of topsoil in vegetable plantation in Beibei is 43.92 mg/kg,the maximum value is 4.71 times of the lowest.Through calculating pollution index of Beibei vegetable plantation,it shows that vegetable plantation of Beibei District in that lead level can completely satisfy non-pollution vegetable production,and the basic satisfy green vegetable production.The main natural factors which can impact the lead content of study area are the types of soil,and the pH value,clay and organic matter content in basic properties of the soil,the artificial factor is the distance from the highway.

关 键 词：土壤 铅 分布特征 污染评价 

分 类 号：X53[环境科学与工程—环境工程] S606.1[农业科学—园艺学]