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Effects of elevated CO2 on soil microbes

JIA Xia1; ZHAO Yong-hua2; HAN Shi-jie3   

  1. 1College of Environmental Science and Engineering, Chang’an University, Xi’an 710054, China;
    2Colloge of Earth Science and Land Resources Management, Chang’an University, Xi’an 710054, China;
    3Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2006-03-05 Revised:1900-01-01 Online:2007-03-15 Published:2007-03-15

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Abstract: A broad attention has been paid on the responses of soil microbial ecosystem to atmospheric CO2 enrichment. In this paper, the effects of elevated CO2 on soil microbial community structure, soil microflora, soil respiration, soil microbial biomass, and soil enzyme activities were summarized. Because of the differences in elevated CO2 experimental system, test plants, and soil characteristics, no consistent conclusions were drawn, but the effects of elevated CO2 on soil microbial ecosystem did exist.

Key words: Winter wheat, Risk assessment index, Yield loss, Risk classification, Geographic distribution