Measurement of N 2O, CO 2 and CH 4 with the optimized closed chamber/GC technique in the typical grassland, which were influenced by human activities, grazing and cultivating first time in situ were carried out in Inner Mongolia of P.

The contents of soil organic carbon(SOC)and soil inorganic carbon(SIC)in different soil layers within 1 m depths in three different kinds of steppes(Stipa baicalensis steppe, Leymus chinensis steppe and Stipa grandis steppe), in the Xilin River Basin of Inner Mongolia, China , were determined in order to investigating effects of cultivating and grazing on the soil carbon in temperate grassland.

Land-reclaimable agriculture is the“national team”of China’s agriculture as well as the demonstrator and driver for modern agricultural construction.

Study on evolvement process of landscape pattern of reclaimed farmland in Yanzhou mining area;