Chief researcher and doctoral supervisor of the basic innovation research group of "Ecosystem Physiology". Mainly engaged in plant ecology research, the research direction is physiological ecology of vegetation restoration in tropical and subtropical degraded ecosystems. The research contents include the function of physiological and ecological characteristics of established plants in the process of vegetation restoration, the physiological and ecological response of dominant tree species in southern subtropical forests to important environmental factors of global change (CO2 concentration doubling and supplementary UV-B radiation), water utilization and canopy water flux of pioneer communities in vegetation restoration, transect study of response and feedback of main terrestrial ecosystems in China to global change, and greenhouse gases (CO2) of different land types in hilly areas of South China. Independently presided over many general projects and large-scale research projects funded by National Natural Science Foundation of China, Guangdong Natural Science Foundation and Knowledge Innovation Project of Chinese Academy of Sciences. At present, he mainly used Granier trunk sap flow measurement system to study the canopy water flux of artificial forest communities in southern China, and studied the influence of trunk sap flow on trunk respiration flux, the compensation effect of tree water storage on water conservancy limitation, and the mechanism of coordinated regulation of forest canopy transpiration by hydraulic power and stomatal conductance. Published papers 125 and 3 monographs.