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硫酸参与喀斯特流域(北盘江)风化过程的碳同位素证据 被引量:8

CARBON ISOTOPIC EVIDENCE FOR THE INVOLVEMENT OF SULFURIC ACID IN CARBONATE WEATHERING OF BEIPAN RIVER CATCHMENT
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摘要 在碳酸盐岩地区,流域侵蚀过程中硫酸是否参与,对于我们正确理解流域化学风化速率,以及流域侵蚀对大气CO2的消耗和全球碳循环等都有重要的意义。本工作在前期工作(乌江)的基础上,对贵州喀斯特地区的河流(北盘江)和支流的水化学特征以及水体溶解无机碳同位素组成进行了初步研究,研究结果证实硫酸参与了该喀斯特流域岩石/土壤化学风化过程。 It is important to ascertain the role of sulfuric acid in carbonate weathering so as to understand the chemical weathering rate carbonate rocks, CO2 consumption and global carbon cycle. This study deals with the chemical characteristics of water and carbon isotopic composition of dissolved inorganic carbon in the Beipan River catchment of Guizhou Province. The results show that sulfuric acid is an important species involved in carbonate rock/soil weathering in small typical karstic catchments.
出处 《地球与环境》 CAS CSCD 北大核心 2006年第2期57-60,共4页 Earth and Environment
基金 国家自然科学基金(40372108) 中法研究先进计划(PRAT04-03) 中国科学院重要方向重大项目(KZCX3-SW-140 KZCX2-105)
关键词 ^δ13C 硫酸 Karst流域 风化 ^δ13C sulfuric acid karst catchment weathering
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