New mechanisms of grassland carbon sink for increasing green of grasslands and income of pastoralists

摘要

International meetings in Durban and Doha reach an agreement on a second commitment to the Kyoto Protocol which is planned to be phased in from 2013. China has issued two major papers to guide green house gas management, namely the Work Programs of Greenhouse Gases Emission Control for the 12th Five-Year Plan and China's Policies and Actions for Addressing Climate Change. The primary mission of these policies and regulations is to improve farmland and grassland carbon sink by implementing grassland protection policy such as forage-livestock balance, grassland enclosure, rest grazing and rotational grazing, controlling grazing capacity and grassland degradation. Record shows that almost 93% carbon is in the soil of grassland ecosystem, grassland ecosystem will be carbon sink with high stability (Wei Bin et al. 2012).