Progress of Carbon Cycle Remote Sensing Model Research in Semi-arid Grass Land Ecosystem

The development of remote sensing technology has provided favorable conditions for the regional carbon cycle research. Carbon cycle remote sensing model is playing an increasingly important role in the study of regional carbon cycling. Considering the characteristics of the semi-arid grassland ecosystem, it is particularly important to choose an appropriate model for the carbon cycle research. In the paper, several carbon cycle remote sensing models were summarized firstly, which were suitable for semi-arid grassland ecosystem. Then, the major constraints of the remote sensing model for the grassland ecosystem were analyzed. Finally, some suggestions about the development of grassland ecosystem carbon cycle remote sensing model for future were given.