Journal of Shanghai University(Natural Science Edition) ›› 2015, Vol. 21 ›› Issue (03): 275-285.doi: 10.3969/j.issn.1007-2861.2015.01.008

• Metallurgical Materials •     Next Articles

Recent advances in the research of gaseous carbon exchange between river water and air interface

DING Hu1, LIU Cong-qiang1, LANG Yun-chao1, LI Si-liang1,LI Xiao-dong1, WANG Fu-shun2   

  1. 1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry,Chinese Academy of Sciences, Guiyang 550002, China;
    2. School of Environmental and Chemical Engineering, Shanghai University,Shanghai 200444, China
  • Received:2015-05-07 Online:2015-06-22 Published:2015-06-22

Abstract: Gaseous carbon exchange between river water and air interface is an important link of regional and global carbon cycle. It is essential to the precious estimation of terrestrial carbon budget and optimization of carbon cycle model. In this paper, the importance and recent progress in the study of riverine CO2/CH4 exchange between water-air interface are introduced, and insufficiency in the related study is pointed out. In the future, more researches need to be carried out on CO2/CH4 exchange between water-air interface of rivers under various geo-eco system and human impacts. Methods of paired carbon isotopes, stoichiometry, biomarker, etc., should be used to trace the sources of gaseous carbon (and other carbon forms) and their relative contributions, and to discover related carbon turn over processes. It is suggested that researches combining filed in-situ observing, traditional sample analysis, and laboratory experiments be conducted in the study of carbon exchange between multi-interfaces of soil-water, soil-air, sediment-water and water-air. Key factors that affect carbon exchange between water-air interface should be revealed. The study will provide abasis for related model development and watershed management.

Key words: carbon exchange between water-air interface, human disturbance, riverine carbon cycle, terrestrial carbon budget

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