Carbon Sequestration Capacity of the Chemical Weathering Processes within Drainage Basins
详细信息
- 责任者：Tao Zhen (Geography and Planning School ; Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong High Education Institute ; Sun Yat-Sen University ; Guangzhou510275 ; China) ; Gao Quanzhou
- 刊名：Quaternary Sciences
- 出版年：2011
- 卷期：31(3)
- 关键词：化学风化作用 ; chemical weathering ; 碳循环 ; carbon cycle
- 页码：p.408-416
- 图表：2 illus., 80 refs.
- 分类号：1800
- issnNo：ISSN1001-7410
- isbnNo：CN11-2708/P
摘要
Atmospheric CO2 uptake by the chemical weathering of river basins was reviewed based on pioneering works. The chemical weathering of continents is the key linkage connecting the major carbon pools in the Earth. The chemical weathering of rocks especially of silicate rocks constitutes a major carbon sink in the global biogeochemical cycles on a geological time scale which is an important surficial geological process that regulates the Earth’s climate and makes the global changes relatively smooth. The geological carbon sequestration potential of chemical weathering of rocks in humid tropical and subtropical areas is about the mean annual fixing of 55 kg CO2 per capita of China which offsets partially the carbon emissions in China.