干旱区生态环境知识资源中心(Arid): 基于地理信息系统技术的新疆焉耆绿洲农田土壤重金属污染评价和潜在生态风险预警

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	基于地理信息系统技术的新疆焉耆绿洲农田土壤重金属污染评价和潜在生态风险预警
其他题名	GIS technology-based research on the heavy metal pollution evaluation and ecological risk warning assessment of farmland soils in Karashahar oasis,Xinjiang
	阿吉古丽·马木提 1; 麦麦提吐尔逊·艾则孜 1; 买托合提·阿那依提 1; 艾尼瓦尔·买买提 2
来源期刊	环境污染与防治
ISSN	1001-3865
出版年	2017
卷号	39 期号:6 页码:658-663
中文摘要	在新疆焉耆绿洲采集农田土壤,测定As、Cd、Cr、Cu、Mn、Ni、Pb和Zn等8种重金属的含量。基于地理信息系统(GIS)技术,并采用污染负荷指数(I_(PL))、潜在生态风险指数(I_R)和生态风险预警指数(I_(ER))对焉耆绿洲农田土壤重金属污染状况进行评价。结果表明,焉耆绿洲农田土壤Cd是《土壤环境质量标准》(GB 156181995)二级标准限值(0.60mg/kg)的10.13倍。Cd、Cr、 Ni、Pb和Zn分别是新疆灌耕土背景值的50.67、1.40、1.33、2.63、4.92倍。农田土壤Cd和Zn呈现重度污染,Pb为中度污染,Cr和Ni为轻度污染,Cu为轻微污染,As与Mn为无污染。重金属I_(PL)平均值为2.00,呈现轻度污染。重金属I_R平均值为318.38,属于较强风险。重金属I_(ER)平均值为4.83,属于中度预警。重金属I_(PL)、I_R与I_(ER)空间分布均呈现明显的地带性分布格局。Cd是污染水平与生态风险等级最高的重金属,表明焉耆绿洲农田土壤Cd污染风险必须给予关注。
英文摘要	Farmland soil samples were collected from Karashahar oasis,Xinjiang,and the contents of 8heavy metal elements(As,Cd,Cr,Cu,Mn,Ni,Pb and Zn)were determined.The heavy metal of farmland soils in Karashahar oasis were analyzed based on geographic information system (GIS)technology,pollution load index(I_(PL)),potential ecological risk index(I_R)and ecological risk warning index(I_(ER)).Results indicated that the average contents of Cd in farmland soils of Karashahar oasis was 10.13times of the Grade Ⅱ standard value(0.60mg/kg)ofEnvironmental quality standard for soil(GB 15618-1995),whereas the average contents of Cd,Cr,Ni,Pb and Zn were 50.67, 1.40,1.33,2.63and 4.92times of the background values for irrigation soil in Xinjiang,respectively.For farmland soils,Cd and Zn were in heavy pollution level,with Pb in moderate pollution level,Cr and Ni in light pollution level,Cu in slight pollution and As and Mn in no pollution level.The average value of I_(PL)for heavy metals in farmland soil was 2.00,which showed a light pollution level.The average value of I_R was 318.38,indicating a strong ecological risk situation. The average value of I_(ER) was 4.83,implying a moderate warning situation.The spatial distribution of I_(PL),I_R and I_(ER)showed obvious zonal distribution patterns.Cd was a heavy metal element with the highest level of pollution and ecological risk.Therefore,the pollution risk of Cd should be a major concern during the process of agricultural production in Karashahar oasis.
中文关键词	农田 ; 重金属污染 ; 生态风险 ; 预警 ; 焉耆绿洲
英文关键词	farmland heavy metal pollution ecological risk warning Karashahar oasis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6010696
来源机构	新疆大学 ; 新疆师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236209
作者单位	1.新疆师范大学地理科学与旅游学院, 乌鲁木齐, 新疆 830054, 中国; 2.新疆大学化学与化工学院, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	阿吉古丽·马木提,麦麦提吐尔逊·艾则孜,买托合提·阿那依提,等. 基于地理信息系统技术的新疆焉耆绿洲农田土壤重金属污染评价和潜在生态风险预警[J]. 新疆大学, 新疆师范大学,2017,39(6):658-663.
APA	阿吉古丽·马木提,麦麦提吐尔逊·艾则孜,买托合提·阿那依提,&艾尼瓦尔·买买提.(2017).基于地理信息系统技术的新疆焉耆绿洲农田土壤重金属污染评价和潜在生态风险预警.环境污染与防治,39(6),658-663.
MLA	阿吉古丽·马木提,et al."基于地理信息系统技术的新疆焉耆绿洲农田土壤重金属污染评价和潜在生态风险预警".环境污染与防治 39.6(2017):658-663.