干旱区生态环境知识资源中心(Arid): 卡拉麦里南部工业区梭梭和琵琶柴重金属空间分布及污染评价

Arid

	卡拉麦里南部工业区梭梭和琵琶柴重金属空间分布及污染评价
其他题名	Heavy metal spatial distribution and contamination assessment of Hadoxylon and Reaummuria soongorica in an industrial area south of Kalamali
	夏楠; 塔西甫拉提·特依拜; 依力亚斯江·努尔麦麦提; 张东; 李云
来源期刊	生态学报
ISSN	1000-0933
出版年	2017
卷号	37 期号:11 页码:3912-3918
中文摘要	对五彩湾工业区周边21个采样点的梭梭(Hadoxylon)和琵琶柴(Reaummuria soongorica)的Zn、Cu、Cr、Pb、As、Hg 6种重金属元素含量测定,运用统计学方法和地统计插值法分析其茎叶和根部重金属含量变化情况和空间分布特征,并综合评价其污染程度和潜在生态危害性。结果表明:梭梭和琵琶柴植株Hg含量的最大值和均值都超出新疆土壤背景值0.017 mg/kg,除梭梭根部的均值0.060 mg/kg未超出国家土壤背景值0.065 mg/kg,在二者其他部位的最大值和均值都已超出;琵琶柴整株中Cr最大值72.62 mg/kg和Zn最大值97.61 mg/kg均超出新疆土壤背景值49.3 mg/kg和国家土壤背景值61 mg/kg,Pb元素未被检出。插值精度方面,Hg、As的RMSE较小,分别为0.263和0.443,预测模型中Hg的R~2为0.72,Cu的R~2为0.67,能较好地估计预测样点的重金属含量,Zn的R~2为0.31,精度较低;插值结果,琵琶柴中的Zn、Cr、AS、Hg含量较高的区域均在工业园区内部及周围,受人为扰动程度较大。梭梭和琵琶柴中Hg元素分别为中度污染和重度污染;Hg元素为中等潜在危害程度高于其他4种元素。
英文摘要	Hadoxylon and Reaummuria soongorica, two species of desert vegetation that occur near Juggar coal, were studied. Six kinds of heavy metals were detected in them, including Zn, Cu, Cr, Pb, As, and Hg. Conventional statistics and geostatistical analysis methods were used to determine the spatial distribution characteristics of heavy metals. The heavy metals in plants were assessed by the Nemerow integrated index to understand the current pollution status and potential ecological risk. The results suggested that maximum Hg (0.224 mg/kg),mean Hg (0.069 mg/kg) in stems and leaves, and mean Hg (0.215 mg/kg) in roots of Hadoxylon were all higher than the national baseline value in soil (0.065 mg/kg). Its maximum (0.92 mg/kg) and mean (0.066 mg/kg) in stems and leaves, and maximum (0.637 mg/kg) and mean(0.072 mg/kg) in roots of Reaummuria soongorica indicated similar results. In the whole body of Reaummuria soongorica, maximum Cr (72.62 mg/kg) and that of Zn (97.61 mg/kg) were higher than the soil baseline in Xinjiang (49.3 mg/kg) and nationally (61 mg/kg). Pb was not found. Interpolated precision was better for Hg and Cu, but worse for Zn. Spatial analysis of Reaummuria soongorica revealed that Zn, Cr, As, and Hg exhibited large artificial disturbances. Hg moderately contaminated Hadoxylon and mildly contaminated Reaummuria soongorica. Zn in stems and leaves of Reaummuria soongorica was a potential risk,whereas the others were in the safe range. It is worth mentioning that Hg was at a moderately hazardous level, higher than the other four elements. Over time, research into metal pollution in plants will be intensified.
中文关键词	荒漠矿区 ; 梭梭 ; 琵琶柴 ; 重金属 ; 评价
英文关键词	desert mining area Hadoxylon Reaummuria soongorica heavy metals assessment
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES ; ENVIRONMENTAL SCIENCES
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
CSCD记录号	CSCD:6015842
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236482
作者单位	新疆大学资源与环境科学学院, 绿洲生态教育部重点实验室, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	夏楠,塔西甫拉提·特依拜,依力亚斯江·努尔麦麦提,等. 卡拉麦里南部工业区梭梭和琵琶柴重金属空间分布及污染评价[J]. 新疆大学,2017,37(11):3912-3918.
APA	夏楠,塔西甫拉提·特依拜,依力亚斯江·努尔麦麦提,张东,&李云.(2017).卡拉麦里南部工业区梭梭和琵琶柴重金属空间分布及污染评价.生态学报,37(11),3912-3918.
MLA	夏楠,et al."卡拉麦里南部工业区梭梭和琵琶柴重金属空间分布及污染评价".生态学报 37.11(2017):3912-3918.