Characteristics of ecological environment changes and advices for combating desertification in typical semi-arid sandy land
Sandy lands,as vital components of terrestrial ecosystems,possess unique structures and functions.In the agro-pastoral transitional zone of northern China's semi-arid and semi-humid regions,sandy lands have un-dergone rapid human-induced changes,both positive and negative.These changes are primarily reflected in phas-es of"destructive utilization"and"protective restoration utilization".Extensive development models have caused issues such as land desertification,over-exploitation of water resources,and ecological imbalance.This study fo-cuses on the Horqin Sandy Land,Mu Us Sandy Land,Hunshandake Sandy Land,and Hulunbuir Sandy Land.It reviews literature and research findings on the regional differentiation characteristics of natural elements in typi-cal semi-arid sandy lands,the spatiotemporal evolution of desertified land and its driving forces,and the co-evo-lution of vegetation-soil characteristics.Given the current state of land desertification and its management amidst climate change and human activities,future research should prioritize the coordination of human-land relation-ships in sandy lands under policy guidance,enhance ecological restoration and vegetation stability based on re-gional water balance,and scientifically advance key ecological engineering projects,such as those in the Horqin Sandy Land and Hunshandake Sandy Land,thereby promoting sustainable development across ecological,eco-nomic,and social systems in semi-arid sandy lands.
NETL
NSTL
万方数据
