Research progress and prospect of karst ecosystem services
Karst ecosystem is fragile,and intensive human activities have led to the degradation of Karst ecosystem in China,which has affected regional ecosystem services provision and human well-be-ing improvement.This paper summarizes the changes in the current research papers in the field of karst ecosystem services,and summarizes 3 hot research issues:Estimation of karst ecosystem services and their spatio-temporal changes;socio-ecological driving factors in karst ecosystem services;trade-offs and synergies relationship in karst ecosystem services.At the same time,4 future research directions are proposed,including the selection of key karst ecosystem services based on geo-socio-ecological condi-tions,the vertical flow of karst ecosystem services,the cascade of karst ecosystem services and human well-being,and the influence of ecological engineering on karst ecosystem services.