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全球大气CO2浓度升高对土壤微生物的影响

贾夏1;赵永华2;韩士杰3   

  1. 1长安大学环境科学与工程学院, 西安 710054;
    2长安大学资源学院, 西安 710054;
    3中国科学院沈阳应用生态研究所, 沈阳 110016
  • 收稿日期:2006-03-05 修回日期:1900-01-01 出版日期:2007-03-15 发布日期:2007-03-15

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

摘要: 全球大气CO2浓度升高对土壤微生物生态系统的影响已引起广泛关注。本文从土壤微生物群落结构、微生物区系、土壤呼吸、微生物生物量以及土壤酶活性方面对大气高浓度CO2的响应进行了综述。由于提供高浓度CO2的实验系统、所选植物材料以及土壤特性等的不同,大气CO2浓度升高对土壤微生物群落结构、微生物区系、土壤呼吸、微生物生物量以及土壤酶活性的影响并未得出一致结论。但高浓度CO2对土壤微生物生态系统的影响是存在的。

关键词: 冬小麦, 风险评估指标, 产量灾损, 风险类型, 地理分布

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