Study on numerical classification and possible productivity of ecological zones in Three-river watershed and upper stream of Min River Dynamic Characteristics of Forest Fires in the Main Ecological Geographic Districts of China Simulation and Validation of CERES-Rice Model in Main Rice Ecological Zones in China Evaluation of Sugarcane Test Environments and Ecological Zone Division in China Based on HA-GGE Biplo Changes of climate and fire dynamic in China vegetation zone during 1961-2010.