Factors influencing CO2 flux of soil surface in Karst area
XU Hai1,2, PIAO Hechun1, HONG Yetang1
1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China; 2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China
[1] Joergenson RG, et al. 1996. Total carbohydrates of the soil microbial biomass in 0.5 M K2SO4 soil extracts [J]. Soil Biol.Biochem., 28:1147～1153. [2] Pomakona LV, et al. 1996. Dynamics of CO2 evolution in grey forest soil of the Baikal forest steppe[J]. Biol. Fertil. Soils, 23:327～331. [3] Raich JW, Schlesinger WA. 1992. The global carbon dioxide flux in soil respiration and its relationship to vegetation and climate[J]. Tellus, 44:81～99. [4] Voroney RP, et al. 1993. Soil microbial biomass C and N[A]. In:Cater MR. (eds). Soil Sampling and Methods of Analysis [C].Can. Soc. Soil Sci. Lewis Publisher, 227～286. [5] Wagai R, et al. 1998. Land use and environmental factors influencing soil surface CO2 flux and microbial biomass in natural and managed ecosystems in southern Wisconsin [J]. Soil Biol.Biochem., 30(12): 1501～1509.
