Response of Karst Carbon Sink Dynamic Behaviors to Rainfall——A Case Study in Maocun Subterranean River of Guilin, Guangxi
详细信息
- 责任者：Tang Wei (School of Geographical Sciences ; Southwest University ; Chongqing 400715 ; China) ; Kang Zhiqiang
- 刊名：Earth and Environment
- 出版年：2011
- 卷期：39(2)
- 关键词：岩溶作用 ; karstification ; 碳循环 ; carbon cycle ; 广西 ; Guangxi
- 页码：p.161-166
- 图表：3 illus., 1 table, 19 refs.
- 分类号：1800
- 出版序号：1445
- issnNo：ISSN1672-9250
- isbnNo：CN52-1139/P
摘要
///Based on the SIc (saturation index) and pCO2 (carbon dioxide partial pressure), analyzed the dynamic behaviors of karst carbon sink in rainfall. The relevant data shows that the water stage, flow and water temperature change with the rainfall. HCO3-, pH, SIc and pCO2 are in response to rainfall quickly. Karst carbon sink increased after rainfall and changed with the rainfall intensity. Furthermore, according to the contrast result of carbon sink between March 7, 2010 and June 13, 2010 of Maocun subterranean river, the authors find that carbon sink increased approximately two times after rainfall, carbon sink changes with different seasons, generally, rainy season’s carbon sink is more than dry season, the results present that karst areas have a potential carbon sequestration.
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