摘要
为了解和掌握设施大棚用地土壤重金属的含量与分布状况,以瓦房店市设施大棚土壤为研究对象,采集土样750个,采用单项累积指数法、单项污染指数法和综合污染指数法对土壤Cd、Cr、Cu等5种重金属元素的含量进行了累积及污染评价。结果表明,研究区Zn、Cd平均单项累积指数均超过1,分别表现为中度累积和轻度累积,其余3种元素处于标准水平;单项污染指数方面,Zn、Cd的单项污染指数值均超过1,都表现为轻度污染风险;在综合污染方面,研究区25个乡镇的综合污染指数均小于0.7,土壤环境属于清洁、安全的状态,适宜继续进行农产品的生产种植活动。
In order to understand and grasp the content and the spatial distribution of soil heavy metals in greenhouse, used the greenhouse soil in Wafangdian City as the object of study and collected 750 soil samples, accumulation and pollution assessment using a single cumulative index method, single pollution index method and comprehensive pollution index method to assess 5 kinds of heavy metals such as Cd, Cr and Cu content. The results showed that of Zn, Cd average individual accumulation index are more than 1, respectively perform for moderate and mild cumulative accumulation, 3 kinds of other elements in standard; In the single pollution index aspect , the single pollution index of Zn, Cd index were more than 1, it was in mild pollution risk; in the comprehensive pollu- tion aspect, the comprehensive pollution index were all less than 0.7 in 25 towns of the study area, soil environment belongs to clean and safe classification ,it means the area suited to plant agricultural production activities.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2017年第2期13-19,共7页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
关键词
设施大棚
重金属
累积评价
污染评价
Green house
heavy mental
Cumulative assessment
Pollution evaluation
