In order to change the distributed status of the meteorological service platform,based on the integration of the self-built service platforms including meteorol
To ensure the future food self-sufficiency in China,it is necessary to mobilize producers’ enthusiasm for growing grain. Theoretically,it is mainly influenced
Through using the data of import and export trading of China’s paper products in 2012,we utilize the method of volume source biomass equation and net primary p
In ' leading enterprise + farmer' cooperation model,farmer’s behavior of breaching contract exists generally. In this paper,from the angle of incomplet