论文摘要
Carbonate mineral weathering coupled with aquatic photosynthesis on the continents, herein termed coupled carbonate weathering（CCW, Fig. 1）, represents a current atmospheric CO2 sink of about 0.5 Pg C/a（Fig. 2）. Because silicate mineral weathering has been considered the primary geological CO2 sink, CCW’s role in the present carbon cycle has been neglected. However, CCW may be helping to offset anthropogenic atmospheric CO2 increases as carbonate minerals weather more rapidly than silicates. Here we provide an overview of atmospheric CO2 uptake by CCW and its impact on global carbon cycling. This overview shows that CCW is linked to climate and land-use change through changes in the water cycle and water-born carbon fluxes. Projections of future changes in carbon cycling should therefore include CCW as linked to the global water cycle and land-use change.
论文目录
文章来源
类型: 国际会议
作者: LIU Zaihua
来源: 第九届世界华人地质科学研讨会 2019-06-01
年度: 2019
分类: 基础科学,工程科技Ⅰ辑
专业: 地质学,环境科学与资源利用
单位: State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences
分类号: P595;X142
DOI: 10.26914/c.cnkihy.2019.028363
页码: 151-152
总页数: 2
文件大小: 168k
下载量: 2