[1]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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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 02
Page number:
165-169
Column:
Public date:
2013-04-28
- Title:
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Spatial Variability of Soil Heavy Metals and Ecological Quality Assessment in the Northern Songnen Plain
- Author(s):
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ZHANG Hui1, FU Qiang2, ZHAO Ying-hui1
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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
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- Keywords:
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Songnen Plain; heavy metals; spatial variation; ecological quality
- CLC:
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X53
- DOI:
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- Abstract:
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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.