喀斯特关键带的地质碳汇及其影响因素研究进展

Research Progress of Geological Carbon Sink in the Karst Critical Zones and Its Influencing Factors

碳酸盐岩风化是喀斯特关键带过程的核心环节,该过程产生的地质碳汇对于缓解全球变暖趋势具有重要意义。为了明确喀斯特关键带的地质碳汇机理并掌握影响碳汇过程的主要因素,通过分析和评述国内外十余年以来的研究成果,提出喀斯特关键带的碳循环路径和过程复杂,应在关键带视角下综合考虑“水-岩-土-气-生(人)”等多界面过程以及人类活动对碳酸盐岩风化碳汇的影响机制,并在高分辨率监测的基础上完善地质碳汇的评估方法。

Carbonate chemical weathering is the core link of the processes in karst critical zone,and the geological carbon sink produced in this process is of great significance to alleviate the trend of global warming.In order to clarify the mechanism of geological carbon sink and give priority to the main factors affecting the carbon sink process in karst critical zone,the research from domestic and abroad during recent ten years was analyzed and discussed,and it was pointed out that the paths and processes of carbon cycle in karst critical zone are complex,the influence mechanisms of multi-interface processes such as the system of“water-rock-soil-gas–organism(human)”and human activities on the carbon sink of carbonate weathering should be considered comprehensively from the perspective of the critical zone,and the evaluation method of geological carbon sink should be improved on the basis of high-resolution monitoring.