A possible important CO_2 sink by the global water cycle

作     者：LIU ZaiHua Wolfgang DREYBRODT WANG HaiJing 

作者机构：The State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Karst Dynamics Laboratory Ministry of Land and Resources Guilin 541004 China Institute of Experimental Physics University of Bremen Bremen 28334 Germany School of Geographical Sciences Southwest University Chongqing 400715 China 

出 版 物：《Chinese Science Bulletin》 (中国科学通报)

年 卷 期：2008年第53卷第3期

页      面：402-407页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：the Hundred Talent Program of Chinese Academy of Sciences,Knowledge Innovation Program the Chinese Academy of Sciences(Grant No.KZCX2-YW-306) the National Natural Science Foundation of China(Grant No.40572017) the Ministry of Science and Technology of China(Grant No.2005DIB3J067) 

主　　题：二氧化碳 全球水循环 碳酸盐分解 水生植物光合作用 

摘      要：The locations,magnitudes,variations and mechanisms responsible for the global CO2 sink are uncer-tain and under ***,we show,based on theoretical calculations and evidences from field monitoring results,that there is a possible important CO2 sink(as DIC-dissolved inorganic carbon)by the global water *** sink constitutes up to 0.8013 Pg C/a(or 10.1% of the total anthropogenic CO2 emission,or 28.6% of the missing CO2 sink),and is formed by the CO2 absorption of water and subsequent enhanced consumption by carbonate dissolution and aquatic plant *** the sink,0.5188 Pg C/a goes to sea via precipitation over sea(0.2748 Pg C/a)and continental rivers(0.244 Pg C/a),0.158 Pg C/a is released to the atmosphere again,and 0.1245 Pg C/a is stored in the continental aquatic ***,the net sink could be 0.6433 Pg C/*** sink may increase with the global-warming-intensified global water cycle,the increase in CO2 and carbonate dust in atmosphere,and reforestation/afforestation,the latter increasing soil CO2,and thus the concentration of the DIC in water.