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Effects of organic matter on the ecological stability of lead contaminated agricultural soil
Received:October 30, 2016  
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KeyWord:lead pollution;phospholipid fatty acid;microbial;soil stability;clustering analysis
Author NameAffiliationE-mail
YANG Hui-zi School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China  
CHEN Ming-long School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China  
ZHOU Yi-ran School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China  
LI Xuan School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China  
MU Qing School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China  
WANG Li-na School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China  
WANG Gui-xin School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China  
ZHANG Yuan School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China yuanzhang_1001@mail.usts.edu.cn 
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Abstract:
      This experiment explored the relationship between soil organic matter content and the stability of lead contaminated soil, and studied the effects of different levels of lead contaminated soil amended by adding organic matters on the microbial community structure and diversity using the phospholipid fatty acid(PLFA) analysis method. The results showed that the bacteria are dominant in lead contaminated soil microbial community. The less lead contamination and the less organic matter content in the soil, the lower soil microbial diversity it will have, whereas the diversity is higher. G- and fungus with organic content and soil stability are significant positive correlations(P<0.01); the ecological stability of lead contaminated soil can be enhanced by improving soil organic matter content.