Abstract:To understand how soil carbon and nitrogen as well as enzyme activities response to climate in subtropical forests. Here, three typical forest community soils at different elevations of Wuyi Mountain were selected. The effects of stimulated warming on soil carbon (C), nitrogen (N), phosphorus (P) cycling related enzyme activity and physicochemical characteristics of soils were studied through translocating high altitude soil core to low altitude one. The results showed that the soil temperature increased by 2℃ on altitude gradient. The soil-translocation experiment showed that soil organic carbon (SOC) decreased most at high altitude (1400 m). The soil ammonium, nitrate, microbial biomass showed a decreasing trend at different altitudes, but the significant effect was observed at high altitudes alone. The elevation gradient and warming treatment were found to have a significant effect on soil hydrolase at all elevations in the soil-translocation experiment, but had no significant effect on peroxidase and phenol oxidase. On the contrary, the soil-translocation experiment was proved to have increases on soil specific enzyme activity at all elevations, and the soil specific enzyme activity at high elevations was more sensitive to temperature increase than that at low elevations. Redundancy analysis (RDA) showed that soil organic carbon, dissolved organic carbon, soil temperature and moisture content were the most important factors affecting the change of soil enzyme activity. In conclusion, this study showed that the stimulating warming had a greater impact on the carbon and nitrogen cycling process in soil at high elevations, mainly by improving microbial activity and enzyme secretion ability.