Corrosion of Limestone in Farmland Ecosystems and Its Carbon Sink Effect in the Karst Area of Southwest China: A Case Study in Sanquan Town ,Nanchuan City , Chongqing Municipality
详细信息
- 责任者：Luo Huailiang (Key Laboratory of Land Resources Evaluation and Monitoring ; Ministry of Education ; Faculty of Geography and Resources Sciences ; Sichuan Normal University ; Chengdu 610101 ; China) ; Yuan Daoxian
- 刊名：Earth Science Frontiers
- 出版年：2011
- 卷期：18(6)
- 关键词：岩溶作用 ; karstification ; 碳 ; carbon ; 重庆 ; Chongqing
- 页码：p.64-71
- 图表：4 illus., 7 tables, 21 refs.
- 分类号：1800
- 出版序号：20122728
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
Based on the limestone corrosion experiment, on the investigation of soil profiles and biomass of vegetation in the same farmlands, and on the analytical experimentation of soil and the standard limestone tablets, the characteristics of corrosion of limestone in farmland ecosystems in the area and its influence factors have been analyzed. The result shows that the corrosion ratio decreases successively from seasonal rotation paddy field, to vegetation plot, to dry land and to year-round flooded paddy field. There are obvious differences, and complex changes among corrosion ratio at different soil layers of farmlands in Sanquan Town, Nanchuan City.