Exploring the effects of crop growth differences on radar vegetation index response and crop height estimation using dynamic monitoring model

A spatial radiation dataset of China from 1981 to 2010, including global radiation, diffuse radiation, photosynthetically active radiation (PAR), and diffuse PAR, is generated and shared based on several estimation models and observations of the China Meteorology Administration and the Chinese Ecosystem Research Network. This is an integral and consistent radiation dataset for ecological modeling and the analysis of the effects of diffuse radiation on terrestrial ecosystem productivity.

Through a 2-year field experiment and meta-analysis, we found higher GHG (dominated by CH₄ emission) and Nr (dominated by NH₃ volatilization) was released from rice production in TLR, causing great environmental costs, due to direct straw incorporation and excessive N fertilization. Sensible N reduction reduced the GHG and Nr to some extent, but further mitigation is possible, especially for CH₄ emission and NH₃ volatilization, considering current incorporation pattern of straw and N fertilizer.