[1]许兴斌,焦黎,王勇辉.夏尔西里自然保护区土壤重金属相关性分析及污染风险评价[J].水土保持研究,2015,22(05):336-341.
　XU Xingbin,JIAO Li,WANG Yonghui.Risk Evaluation and Correlation Analysis of Soil Heavy Metal Contamination in Xiaerxili Nature Reserve[J].Research of Soil and Water Conservation,2015,22(05):336-341.
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夏尔西里自然保护区土壤重金属相关性分析及污染风险评价

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年05期 页码: 336-341 栏目: 出版日期: 2015-10-28
Title:
Risk Evaluation and Correlation Analysis of Soil Heavy Metal Contamination in Xiaerxili Nature Reserve
作者:
许兴斌1,2,3, 焦黎1,2, 王勇辉1,2
1. 新疆干旱区湖泊环境与资源重点实验室, 乌鲁木齐 830054;
2. 新疆师范大学 地理科学与旅游学院, 乌鲁木齐 830054;
3. 兰州大学 资源环境学院, 兰州 730000
Author(s):
XU Xingbin1,2,3, JIAO Li1,2, WANG Yonghui1,2
1. Xinjiang Laboratory of Lake Environment and Resources in Arid Zone, Urumqi 830054, China;
2. College of Geography and Tourism, Xinjiang Normal University, Urumqi 830054, China;
3. College of Resources and Environment, Lanzhou University, Lanzhou 730000, China
关键词:
夏尔西里自然保护区; 重金属; 污染评价; 相关性分析
Keywords:
Xiaerxili nature reserve; heavy metal; contamination evaluation; correlation analysis
分类号:
X53
摘要:
为了探明夏尔西里自然保护区土壤重金属污染状况及相关性，沿山路蛇形布点采样，根据实地采样数据和试验数据，通过单因子污染指数分析法和潜在生态危害评价法，分别对夏尔西里自然保护区土壤重金属污染状况进行评价分析。结果表明：夏尔西里自然保护区重金属含量超过《土壤环境质量标准（GB15618—1995）》中一级土壤评价标准，Ni，Cr处于清洁状态；土壤中Pb，Zn，Co，Cu超标率分别为65%，50%，60%，85%；土壤中Hg，As超标率分别为90%，100%；8种重金属元素潜在生态危害系数顺序为：Hg > As > Cu > Pb > Co > Ni > Cr > Zn；Zn与Ni、Cu与Pb、Co与Cu的相关性达到显著性水平；Zn与Pb、Cr与Ni、Co与Pb、Co与Zn的相关性达到极显著性水平，元素有较高的同源性，重金属元素含量主要与成土母质有关，人为干扰对重金属元素含量影响较小，Hg，As元素与其他重金属元素相关性低或无相关性。
Abstract:
To explore the status and correlation of soil heavy metal contamination in Xiaerxili nature reserve, the stationing and sampling were carried out in this research following an S-line along the mountain road. Based on field sample data and experimental data, the heavy metal contamination of soil in Xiaerxili nature reserve was evaluated and analyzed through single factor contamination index method and potential ecological risk index method. The result showed that extractable metal contents in Xiaerxili nature reserve exceeded the first-level evaluation standard according to soil environment quality standard (GB15618—1995). The exceeding standard ratios of Ni, Cr were zero; the exceeding standard ratios of Pb, Zn, Co, Cu were 65%, 50%, 60% and 85%, respectively; the exceeding ratios of Hg and As were 90% and 100%, respectively. The order of potential ecological risk index of the above 8 heavy metal elements is Hg > As > Cu > Pb > Co > Ni > Cr > Zn,among which the following pairs of elements were positively correlated: Zn—Ni, Cu—Pb, Co—Cu (tested at the 0.05 significant level);Zn—Pb, Cr—Ni, Co—Pb, Co—Zn (tested at 0.05 significant level). These elements shared high homology. Extractable metal contents were mainly connected with the parent material with relatively small human disturbance. There was low or no correlation between Hg and As for any other elements.

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备注/Memo

收稿日期:2014-09-15;改回日期:2014-10-29。
基金项目:国家自然科学基金“夏尔西里地区土壤背景值及特征研究”（41261055）
作者简介:许兴斌(1987-),男,甘肃陇西人,博士研究生,研究方向为干旱区资源利用与环境演变。E-mail:xuxingbin0214@126.com
通讯作者:焦黎(1963-),男,新疆乌鲁木齐人,教授,主要从事区域资源环境评价研究。E-mail:jiaolixjsd@sina.com

更新日期/Last Update: 1900-01-01