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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (6): 261-265.

所属专题： 土壤重金属污染

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

松嫩平原耕作黑土Cu、Pb、Zn的污染现状分析

高璐 沙迪 张雪萍   

  • 收稿日期:2010-11-24 修回日期:2010-12-11 出版日期:2011-03-20 发布日期:2011-03-20
  • 基金资助:

    国家自然科学基金;黑龙江省自然科学基金项目;教育部博士点基金项目

Analysis on the Current Pollution Situation of Cu, Pb and Zn in the Cultivated Black Soil of Songnen Plain

  • Received:2010-11-24 Revised:2010-12-11 Online:2011-03-20 Published:2011-03-20

PDF (PC)

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摘要：

黑土区是中国重要的商品粮生产基地之一，对于中国的粮食安全和国民经济的稳定起着举足轻重的作用。此文以松嫩耕作黑土土壤为研究对象，对呼兰、绥化、海伦、依安与嫩江5个调查区的土壤中Cu、Pb、Zn的污染现状进行研究，揭示耕作黑土的健康状况，为黑土生态系统的科学管理提供理论依据。采用内梅罗综合污染指数法及TOPSIS法进行环境质量综合评价。结果表明：土壤Cu、Pb、Zn的污染程度，由东南至西北未表现出明显的分布规律。呼兰、依安土壤Cu、Pb、Zn的污染程度低于绥化、海伦和嫩江；大部分样地土壤Cu、Pb、Zn污染程度具有随剖面深度的增加而增加的特点，仅有绥化土壤10~20 cm土层污染程度小于0~10 cm土层。Cu、Pb、Zn各元素之间没有呈现显著的相关性，表明3种元素来源是不同的。两种方法的评价结果基本一致，研究区域黑土环境质量良好。

关键词: 气候变化 农业生产 影响, 气候变化 农业生产 影响

Abstract:

The black soil region is one of the most important food bases in China, and it plays a vital role in food security and national economy. In this paper, the total content of the cultivated black soil and made a study on the current pollution in Hulan, Suihua, Hailun, Yi’an and Nenjiang. This article’s aim is reveal health of the cultivated black soil, and provide a theoretical basis for scientific management of the black soil ecosystem. The assessment of the comprehensive environmental quality was conducted by adopting the Nemerow Comprehensive Pollution Index and TOPSIS method. The results showed that, from the southeast to the northwest, there was no obvious distribution law in the pollution level of Cu, Pb and Zn of soil. The pollution level of Cu, Pb and Zn in Hulan and Yi’an was lower than that in Suihua, Hailun and Nenjiang; and it increased with deepening of soil profile in most of sample plots. Only in Suihua, the pollution level of the 10-20 cm soil layer was lower than that of the 0-10 cm soil layer. There was no prominent relevance among Cu, Pb and Zn, which indicated that the three elements came from different sources. The result of two methods was closely consistent, the environmental quality of black soil was good in each survey area.