Journal of Ecology and Rural Environment ›› 2006, Vol. 22 ›› Issue (2): 75-79.doi:

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Net CO2 Exchange and Water Vapour Flux in Wetland Ecosystem and Their Relationship

 JIA  Zhi-Jun, SONG  Chang-Chun   

  1. Northeast Institute of Geography and Agricultural Ecology,Chinese Academy of Sciences
  • Received:2005-10-10 Online:2006-04-25 Published:2011-08-23

Abstract: As an important component of the terrestrial carbon cycle,carbon recycling in wetland ecosystem plays a crucial role in global change.Water vapor flux is one of the most important and the most fundamental ecological factors affecting carbon recycling in wetland ecosystem and is therefore closely related to net CO2 exchange in wetland ecosystem.Based on summarization of the basic laws and main affecting factors of net CO2 exchange and water vapor flux in wetland ecosystem,relationship between the two is analyzed.Macroscopically,the interaction between net CO2 exchange and water vapor flux is determined by characteristics of the wetland ecosystem per se,and microscopically stomatal behavior on the foliage scale is the link connecting water transpiration with net CO2 exchange.Prospects of the research is predicted.

Key words: wetland ecosystem, net CO2 exchange, water vapor flux, environmental factor, stomatal behavior

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