Effect of Different Vegetation and Management on Soil Dissolved Organic Carbon and Inorganic Nitrogen and Carbon Flux under Four Vegetation

In May 2018, soil samples of 0-20 cm was collected under Camellia sinensis garden, Pinus massoniana ‘Fuding Dabaicha’stand, Prunussimoniist and Ligustrum japonica ‘Howarii’stand in Guiyang, Guizhou province. Determinations were implemented on dissolved carbon (DC) and nitrogen (DN) content, microbial biomass carbon (SMBC) and nitrogen(SMBN), CO2 and CH4 flux. The results showed that soil dissolved organic carbon (DOC) and nitrogen (DON) content in the sampled vegetation ranged 5.7- 77.5 mg/kg, 2.2 - 71.9 mg/kg respectively. There was no