Research of potential carbon sequestration for grassland in Qinghai province

As a big province which owns many grasslands, the potential carbon sequestration of Qinghai province is very great. The strong (A2a) and weak (B2a) scenarios in global climate warming and drying scenarios, the climate in Qinghai Province is opposite to the climate of the global trends, taking on warm trend; The main subject of Qinghai grassland carbon is the alpine tundra categories, accounting for Qinghai Province the total area of potential grassland is 75.69%, the annual carbon potential is 87.22% of the potential carbon potential of grassland of Qinghai province. compared with nearly 50 years (1950–2000) ,the grassland area will show a decrease trend in Qinghai Province, the trend of increasing forest area, grassland area will be reduced respectively by 30.71% and 28.5%; In the future (2001–2050) A2a, B2a scenario in Qinghai Province on carbon sequestration potential of grassland decreased by 25.55% and 20.82%, The warm and humid trend of climate is conducive to increase total vegetation carbon sink, the subject is that the carbon sequestration of alpine tundra categories has a significant reduction, but temperate forests (it is cold temperate coniferous forest class in Qinghai province ) is characterized by increased carbon sink.