Carbon element is not only an important component of green plants and microorganisms, but also a vital ecological factor in ecosystem. With the CDM (Clean Development Mechanism) implementation, it is well believd to increase carbon sequestration through afforestation and reforestation programme is of great significance in terms of mitigation of global climate change. Moreover, as compared to grassland or cropland, the ecological value of carbon sequestration of forest plantation is more prominent. The area ...