[1]张慧,付强,赵映慧.松嫩平原北部土壤重金属空间分异特征及生态安全评价[J].水土保持研究,2013,20(02):165-169.
　ZHANG Hui,FU Qiang,ZHAO Ying-hui.Spatial Variability of Soil Heavy Metals and Ecological Quality Assessment in the Northern Songnen Plain[J].Research of Soil and Water Conservation,2013,20(02):165-169.
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松嫩平原北部土壤重金属空间分异特征及生态安全评价

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年02期 页码: 165-169 栏目: 出版日期: 2013-04-28
Title:
Spatial Variability of Soil Heavy Metals and Ecological Quality Assessment in the Northern Songnen Plain
作者:
张慧1, 付强2, 赵映慧1
1. 东北农业大学 资源与环境学院, 哈尔滨 150030;
2. 东北农业大学 水利与建筑学院, 哈尔滨 150030
Author(s):
ZHANG Hui1, FU Qiang2, ZHAO Ying-hui1
1. College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China;
2. College of Water Conservancy and Architecture, Northeast Agricultural University, Harbin 150030, China
关键词:
松嫩平原; 重金属; 空间分异; 生态安全质量
Keywords:
Songnen Plain; heavy metals; spatial variation; ecological quality
分类号:
X53
摘要:
以松嫩平原北部8.15万km2的范围为研究区域，以20 701个表层土壤样品的As，Cd，Cr，Pb，Hg，Cu，Zn，Ni共8种重金属元素含量为基础数据，利用地统计方法分析研究区内表层土壤重金属的空间分异特征。利用主成分分析法进行土壤生态安全质量评价。评价结果显示：松嫩平原北部表层土壤中重金属元素含量普遍低于世界土壤和中国土壤重金属平均含量；研究区内松花江、嫩江对表层土壤中重金属的水平迁移影响显著，表层土壤重金属含量由低及高呈现沿松花江嫩江的主要干支流向周围梯级过渡的趋势。表层土壤中重金属元素的空间分布主要受自然因素影响，其中Pb，As元素的空间分布受到一定程度的人为因素干扰。松嫩高平原区域土壤生态安全质量相对较低，松嫩低平原区域土壤生态安全质量相对较高。
Abstract:
In order to study the spatial variability of heavy metals and ecological quality, 20 701 surface soil samples of the northern Songnen Plain were collected. All samples were analyzed including As, Cd, Cr, Pb, Hg, Cu, Zn, Ni based on GeoStatistics, and soil ecological safety was evaluated based on principal component analysis method. The result showed that the heavy metal concentrations in surface soil of Songnen Plain were lower than average heavy metal levels in the world and in China. Songhua River and Nenjiang River had the significant impact on the horizontal transfer of heavy metals in surface soil. The study found an increasing trend for the concentrations of heavy metals from Songhua River and Nenjiang River mainstream to the surrounding area. The spatial variation of heavy metals in surface sediments was mainly affected by natural factors, and the spatial distribution of Pb, As was certainly affected by human interference. Ecological quality in highland area of Songnen Plain was better than in lowland area of Songnen Plain.

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备注/Memo

收稿日期:2012-05-30;改回日期:2012-10-18。
基金项目:国家自然科学基金“松嫩高平原黑土区耕地利用系统安全及其调控机制研究：以巴彦县为例”（41071346）；国土资源部地质调查项目（1212010511217-04）；黑龙江省博士后基金项目“黑龙江省松嫩平原南部土壤砷空间分异特征及迁移机制研究”
作者简介:张慧(1976-),女,山东金乡人,讲师,博士生,主要研究方向为3S应用及土地质量评价。E-mail:2003zhanghui@163.com
通讯作者:付强(1973-),男,辽宁锦州人,教授,博士生导师,主要从事农业水土资源系统分析、节水灌溉及农业系统工程建模与优化技术研究。E-mail:fuqiang@neau.edu.cn

更新日期/Last Update: 1900-01-01