【作者】 龙健； 廖洪凯； 李娟；

【Author】 LONG Jian~1,LIAO Hong-kai~1,LI Juan~2 (1.Guizhou Key Laboratory of Mountain Environment,Guizhou Normal University,Guiyang 550001; 2.Department of Geography and Environment Science,Guizhou Normal University,Guiyang 550001)

【机构】 贵州师范大学贵州省山地环境重点实验室； 贵州师范大学地理与环境科学学院；

【摘要】 土壤有机碳是喀斯特生态系统碳转移的动力学媒介,是喀斯特生态系统中碳流通的主要途径。土地利用方式与喀斯特地区土壤固碳能力密切相关,是影响区域碳固定的主导因子。研究发现:不同土地利用方式下的不同小生境类型土壤有机碳含量及空间累积特征存在较大差异,是影响区域碳固定的次要影响因子。进一步深入研究喀斯特有机碳的各种结合形态,结合喀斯特小生境进行探讨,可作为今后喀斯特土壤碳循环研究的重要方向。更多还原

【Abstract】 Soil organic carbon is the dynamic media of carbon transfer,and also it is the main pathway of carbon circulation in Karst system.Land use is closely related to the sequestration capacity of soil carbon in Karst areas,and it is the dominant factor influencing the regional carbon fixed.Nearly two years of research by our group found that,there is a big difference between soil organic carbon content and space accumulation characteristics in different microhabitats under different land use patterns,which is a minor impact factor influencing the regional carbon fixed.Further study in various combination forms of organic carbon and discussing combined the microhabitat,can be important directions for future research on soil carbon cycle in Karst areas.更多还原