Spatial changes in soil CO2 emission from re-forested hillslopes on the Loess Plateau: a geomorphic control Diurnal variation of soil basal respiration and CO2 emission from a typical paddy soil after rice harvest under long-term different fertilizations A Primary Study on CO2 Emission from Alpine Potentilla fruticosa Scrub Meadow Ecosystem Effect of Soil Circumstances Biogeochemical Factors on Carbon Dioxide Emission from Mollic-Gryic Cambisols Effects of Dissolved Organic Matter Input on Soil CO2 Emission and Microbial Community Composition in a Subtropical Forest CO2 flux characteristics from degenerated mat cryo-sod soil during plant growing period Study on CO2 emissions and its kinetics of soils with different fertilization systems A Study on CO2 Emission Rate from Alpine Meadow in the Source Region of Yellow River in Guo-luo, Qing-hai Province Impacts of Biochar Input on Soil Carbon Emission and Microbial Community Composition in Cunninghamia lanceolata Plantation