The western Liaoning Province Agricultural and Animal Husbandry Intertwined Zone is situated on the outskirts of the northern agricultural and animal husbandry intertwined zone. The two main factors influencing ecosystem services in the area are land use change and climate change. The study examined the spatial and temporal changes in the region’s climate and land use over the last 30 years (1990-2020), evaluated the region’s ecosystem services, investigated the extent to which changes in the climate and land use have affected ecosystem services, and forecasted and evaluated land use and ecosystem services under various future scenarios. The InVEST model was used in this study to model how ecosystem services have changed over the previous thirty years. (1) According to the investigation, habitat quality has been gradually declining, especially along riverbanks and along the urban fringe. Over the course of 30 years, carbon storage gradually decreased. While hilly regions’ ability to retain soil decreased, high-altitude regions continued to store more carbon and retain more soil. (2) Both climatic and land use conditions significantly impacted ecosystem services, according to the quantitative study done with spatial detectors. (3) The land use status and ecosystem services for 2050 were predicted using the PLUS and InVEST models. According to the analysis, carbon storage was expected to decline but habitat quality and overall water production were predicted to increase relative to 2020 values, soil conservation capacity drastically decreased.