[1]芦宝良,陈克龙,曹生奎,等.青海湖典型湿地土壤重金属空间分布特征[J].水土保持研究,2012,19(03):190-194.
　LU Bao-liang,CHEN Ke-long,CAO Sheng-kui,et al.Spatial Distribution Characteristics of Soil Heavy Metals of Wetlands in Some Representative Regions around Qinghai Lake[J].Research of Soil and Water Conservation,2012,19(03):190-194.
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青海湖典型湿地土壤重金属空间分布特征

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 19 期数: 2012年03期 页码: 190-194 栏目: 出版日期: 2012-06-20
Title:
Spatial Distribution Characteristics of Soil Heavy Metals of Wetlands in Some Representative Regions around Qinghai Lake
作者:
芦宝良1, 陈克龙1,2, 曹生奎1,2, 杨龙1, 陈生云3, 马进1
1. 青海师范大学 生命与地理科学学院, 西宁 810008;
2. 青藏高原环境与资源教育部重点实验室, 西宁 810008;
3. 中国科学院 寒区旱区环境与工程研究所, 兰州 730000
Author(s):
LU Bao-liang1, CHEN Ke-long1,2, CAO Sheng-kui1,2, YANG Long1, CHEN Sheng-yun3, MA Jin1
1. College of Life and Geography Science, Qinghai Normal University, Xining 810008, China;
2. Key Laboratory of Qinghai-Tibet Plateau Environment and Resources, Ministry of Education, Qinghai 810008, China;
3. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
关键词:
重金属; 湿地土壤; 青海湖; 空间分布; 相关性
Keywords:
heavy metals; wetland soil; Qinghai Lake; spatial distribution; correlation
分类号:
X131.3
摘要:
以青海湖黑马河湿地为研究对象，对湿地土壤重金属铜、锌、铅、铬（Cu，Zn，Pb，Cr）4种元素的空间分布特征进行了研究。结果表明：湿地表层土壤（0-10 cm）中，Cu，Cr，Pb和Zn的平均含量分别为16.38±4.95 mg/kg，65.46±7.34 mg/kg，14.26±4.28 mg/kg，46.35±7.27 mg/kg。垂直湖岸的水平方向上，Cu，Cr，Pb和Zn的含量高值出现在湿地高水位带以及陆相带，低值出现在湿地水陆过渡带。在土壤剖面方向上，各重金属元素表现出不同的分布特征：Cu呈现出表面聚集现象；Zn随深度变化有明显的淋溶和积聚趋势；Pb含量沿土层剖面纵深分布的特征是先增加后减少；Cr呈显著的表面聚集现象。湿地表层土壤的对比结果显示研究区内土壤环境质量良好。湿地土壤中Cu，Zn，Pb，Cr四种元素之间呈显著正相关，表明本区域重金属具有同源性。
Abstract:
The content and distribution characteristics of soil heavy metals such as Cu, Zn, Pb, and Cr in wetlands of Heima River wetlands around Qinghai Lake were studied. The results showed that the average contents of Cu, Cr, Pb and Zn in top soil of 0-10 cm depth were 16.38± 4.95 mg/kg, 65.46±7.34 mg/kg, 14.26±4.28 mg/kg, 46.35±7.27 mg/kg, respectively. In the horizontal direction to perpendicular the shore, the high contents of Cu, Cr, Pb and Zn appeared in the high water level and terrestrial area in wetlands, while low contents appeared in water and land transition zone. In the soil profile direction, different heavy metals showed different distribution.Cu presented a surface aggregation; distribution of Zn showed significant leaching and accumulation trends to soil profile; Pb increased first and then decreased along the soil profile; distribution of Cr showed a significant surface aggregation. Comparison among these elements showed the quality of soil in the study area maintained a good natural level. Cu, Zn, Pb and Cr exhibit a significant positive correlation with each other, which indicated that there was a homology among them in the study area.

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备注/Memo

收稿日期:2011-10-19;改回日期:2011-11-28。
基金项目:国家自然基金（40861026，40761010）；国家社科基金（08XJY012，10CJY015）；青海省科技厅项目（2010276）
作者简介:芦宝良（1987- ），男，青海西宁人，硕士研究生，从事环境变化及碳循环方面的研究。E-mail：w-w987@163.com
通讯作者:陈克龙（1965- ），男，安徽巢湖人，教授，主要从事全球变化及自然保护方面的研究。E-mail：ckl7813@163.com

更新日期/Last Update: 1900-01-01