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臭氧对生态系统地下过程的影响

陈展;王效科;冯兆忠;郑启伟;欧阳志云   

  1. 中国科学院生态环境研究中心城市与区域生态国家重点实验室, 北京 100085
  • 收稿日期:2006-02-27 修回日期:2006-10-15 出版日期:2007-01-10 发布日期:2007-01-10

Effects of elevated ambient ozone on ecosystem below-ground processes

CHEN Zhan;WANG Xiao-ke;FENG Zhao-zhong;ZHENG Qi-wei;OUYANG Zhi-yun   

  1. State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-
    Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • Received:2006-02-27 Revised:2006-10-15 Online:2007-01-10 Published:2007-01-10

摘要: 对流层中高浓度的臭氧是一种严重危害植物的大气污染物,臭氧浓度的升高会对作物、林木等产生一系列的损害。本文综述了大气臭氧浓度升高对生态系统地下过程的影响,包括植物根系、根系分泌物、菌根、土壤根呼吸、土壤酶以及土壤微生物的影响研究进展;阐述了目前研究中存在的争论以及今后需要研究的领域和方向。

关键词: 赤潮, 赤潮异弯藻, 铁限制, 荧光特性

Abstract: Ozone is the most important phytotoxic gaseous pollutant in many parts of the world. High level ozone will cause the reduction of crop- and forest outputs. This paper reviewed the research advances in the effects of elevated ozone on the belowground processes of ecosystems, including root growth, root exudation, mycorhizal growth, soil-root respiration, soil enzyme activity, and soil microbiological processes. The significance of this research, the debates in current researches, and the fields and directions needed to be further studied were discussed.

Key words: Red tide, Heterosigma akashiwo, Iron limitation, Fluorescence characteristics