Land cover mapping and above ground biomass estimation in China

Land cover is an important part of ecosystem change and driving factors, while above ground biomass also plays an important role in carbon cycling. Supported by object-oriented classification technology, the land cover data of China (ChinaCover) in 2010 have been produced using Landsat TM/ETM and HJ-1 satellite data of 30m resolution, combined with a large number of data of field investigation. At the same time, we select 6 typical study sites for collecting airborne LiDAR data, high resolution images and hyperspectral data, and estimate the vegetation aboveground biomass, then scale to the 30m scale by Landsat TM data and 250m scale based on MODIS, canopy height, vegetation coverage and vegetation type classification data. The final models were applied to output China's vegetation above ground biomass map in 2010.