摘要
In order to tackle global climate changes,a research team from the Institute of karst geology in Guilin has been conducting the karst carbon sink study for three yeas under the auspices of the geological survey projects. In order to calculate the atmospheric CO2 sink in karst progresses of China, the authors divided karst districts in China into four types of karst regions, i.e., the karst region in south China, the karst region in northern China, the Tibet plateau karst region and the buried karst region, with their areas being 564 800 km2, 325 800 km 2, 556 000 km2 and 2 001 000 km2, respectively.