[Objective] This study aims to elucidate the seasonal variation characteristics of soil respiration rates beneath typical slope-stabilizing Cynodon dactylon cover and its response patterns to critical environmental factors, thereby revealing the environmental response properties of soil carbon release processes associated with Cynodon dactylon while excluding the influence of complex hydrological processes. This offers essential process-oriented evidence for assessing its ecological advantages in slope stabilization and possible carbon sequestration capabilities. [Methods] Continuous studies of the soil respiration rate of Cynodon dactylon during its growing season were undertaken using devices such as the 3051T completely automatic soil CO? flux meter and a solar-powered weather station. Simultaneous monitoring was conducted on environmental variables such as air temperature and humidity, soil temperature and humidity, atmospheric CO? levels, and precipitation. This study examines the impact of many environmental conditions on fluctuations in soil respiration rates on Bermuda grass-protected slopes by assessing changes across daily, monthly, and seasonal periods, with correlation analysis.[Results] (1) Under Cynodon dactylon cover, soil respiration rates displayed significant seasonal fluctuation throughout the growing season, peaking in summer, followed by spring, and reaching lowest levels in fall. On a daily scale, respiration rates demonstrated either single-peak or double-peak patterns throughout different months, with peak timing altering seasonally. (2) Correlation analysis revealed extremely substantial positive relationships between soil respiration rates and both air temperature and soil temperature (P < 0.01). Significant negative relationships were identified with soil moisture (P < 0.01) and ambient CO? concentration (P < 0.05), while no significant association was found with air humidity. (3) Soil respiration rates exhibit a nonlinear relationship with temperature, decreasing as temperatures rise under higher temperature conditions. (4) Within 72 hours after rainfall, overall soil respiration rates were lower than under no-precipitation conditions, with a trend consistent with the control group.