Soil respiration was measured in a pine (Pinus tabulaeformis) forest in Tianlong mountain area near Taiyuan city for a period of about four years from April 2005 to December 2008. The purpose was to investigate both seasonal and interannual variations and relationships between soil respiration and both soil temperature and soil moisture. The CO2 efflux was found to exhibit pronounced seasonal variations mainly controlled by the soil temperature. The highest CO2 efflux values were between 6 to 10 μmol m-2 s-1 in August whereas the CO2 lowest values were about 0.5 μmol m-2 s-1 in winter and early spring. For the four years (2005-2008) the mean annual rate of soil respiration was (4.71±3.74), (3.08±291), (296±2.58)μmol m-2 s-1 and (2.12±1.54) μmol m-2 s-1, respectively. The four-years overall mean was (327±2.95) μmol m-2 s-1. The difference in the mean annual soil respiration for the four individual years was distinct. The cumulative annual respiration C was 1103.5, 882.8, 918.4 g m-2 a-1 and 666.3 g m-2 a-1, respectively, for the four years (2005, 2006, 2007 and 2008). The relationships between soil respiration and soil temperature at 10 cm depth could be described by exponential equation, with a determination coefficient (R2) of 0.39, 0.60, 0.68 and 0.71, respectively, for 2005, 2006, 2007 and 2008. Compared hereto, the soil moisture dependence on soil respiration was less pronounced giving annual R2-values of 031, 0.25, 0.13 and 0.02, respectively for the four years. This indicates that soil water content, taken on its own, was less effective than soil temperature to predict the annual course in soil respiration. In the summer months, however, distinct effect of drought was found to reduce the soil respiration by 50%. To be able to predict both the soil moisture and soil temperature dependency four two-variable linear/non-linear models were developed. By use of those models it was possible to predict the soil respiration as function of both temperature and soil moisture, with a R2 ranging from 0.58 to 0.79.