Study on a laccase-producing fungus from alpine grassland soil in eastern Qilian Mountains: screening, identification, and activity analyses Study on the simulation methods of grassland soil organic carbon: a review Study on the dynamic of soil phosphorus in the transitional areas of grasslands and crop fields Soil carbon sequestration and its potential by grassland ecosystems in China The processes of N2O production in temperate meadow grassland soils In Situ Measurements of CO2 Flux in Grassland Ecosystem by Closed Chamber Technique Responses of soil microbial biomass C and N and respiratory quotient (qCO2) to revegetation on the Loess Hilly-Gully region