The Comparative Analysis of the Recovery of Forest Fire and Grassland Fire Based on NDVI and NPP

In this paper, the value of NPP of the forest fire and grassland fire were calculated by establishing the efficiency for solar energy utilization model. The restoration of the forest and grassland vegetation was summarized after the comparative analysis of two kinds of fire. The results show that the restoration of the forest vegetation was long, and the value of NDVI and NPP significantly increased, then became stable and tended to increase gradually. While the restoration of the grassland vegetation was rapid, and the changes of NDVI and NPP were small.