| 岩溶地质碳汇的稳定性——以贵州草海地质碳汇为例 |
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| 关键词:geological carbon sink stability Caohai Lake aquatic plants carbon isotope |
| 基金项目:中国地质调查局地质调查项目“地质碳汇潜力综合研究”(编号: 1212011087119);中国地质科学院基本科研业务费项目(编号: 2010-SYS-15) |
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| The Stability of Carbon Sink Effect related to Carbonate Rock Dissolution: A Case Study of the Caohai Lake Geological Carbon Sink |
| In recent years, there have been more and more debates concerning karst carbon sink or source, and the key problem is weather the bicarbonate from carbonate rock dissolution is stable. With the Caohai Lake basin as the study area, on the basis of previous researches, and by utilizing the carbon isotope model, the authors conducted studies and found that 58.8% of bicarbonate is utilized by aquatic plants. The Caohai basin geological carbon sink amount is 588.67 tC/a. Submerged plants of lakes along the middle and lower reaches of the Yangtze River can fix 370602 tC/a of carbon, and this means that every year 750000 tons of CO2 from geological weathering will be stabilized by submerged plants. So carbon sink effect related to carbonate rock dissolution is quite stable and the new karst dynamic system is rational. |
| ZHANG Qiang.2012.The Stability of Carbon Sink Effect related to Carbonate Rock Dissolution: A Case Study of the Caohai Lake Geological Carbon Sink[J].Acta Geoscientica Sinica,33(6):947-952. |
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