Ecosystem services value (ESV) can assess the level of basin ecological restoration and provide a basis for ecological management decisionmaking. This study object selects Liaohe River Basin (LHB), a typical basin in Northeast China. The ecosystem service value variation caused by changes in land use cover and the spatial distribution characteristics was evaluated by employing the bene t transfer method, which is based on data sets for land use over 2000-2020. Meanwhile, geographical detector was employed to investigate the impacts and interactions of various factors driving the ESV, and predicted future changes in land and ESV by PLUS model. The results showed the following: 1) LHB land transformations mainly concentrated in the transformation between grassland, farmland and forestland. ESV in LHB decreased and then increased between 2000 and 2020 (1224 billion-928 billion-1238 billion), 2) Ecosystem service value exhibited a strong positive spatial autocorrelation, high ESV was mainly distributed in the eastern and western regions of LHB, and low ESV in the central region.3) The variation in ecosystem service value mainly arises from the human activity intensity index of human factors. 4) In the future, the ecological protection priority scenario can improve the ESV in LHB, and the natural development priority and economic development priority scenario is not conducive to the improvement of ESV. The results show that the ecological restoration effect of the LHB is obvious with the ecosystem service value is signi cantly improved. In the future, attention should be paid to control human activities and strengthen ecological protection in ESV hotspots. structures, processes, and functions of the natural environment and are essential for human survival and progress (Aschonitis et al., 2016. Costanza et al., 1997. Assessing the value of ecosystem services (ESV) is crucial for safeguarding the ecological environment, understanding the role of ecosystems in speci c regions, building sustainable societies, managing environmental economic resources, and making informed decisions on ecological compensation (Daily et al.,2000. Ouyang et al.,1999. Xie et al.,2015. Watershed ecosystems offer us essential products for our survival,as well as important ecosystem services on a large scale like climate regulation,water preservation,carbon dioxide absorption,water and air puri cation,soil and water conservation,and biodiversity (Daily, 1997;Qin et al., 2020).The Liaohe River (LHB) is one of the seven major rivers in China with important industrial and agricultural production base. Home to a population of 34.04 million in the LHB. It is also an important base for steel, machinery, building materials, chemical industry, grain production, and animal husbandry in China. The middle and lower reaches of the LHB are one of the most developed industrial and economic regions in China. Since the 1960s, with the acceleration of economic development, industrialization, and urbanization, numerous human activities have caused interference, es...
