Combining spatiotemporal interactions of ecosystem services with land patterns and processes can benefit sensible landscape management in dryland regions

The study of land-use patterns and transitions has extended its influence into multiple ecosystem services (ESs) and their relationships, the integration of which can offer an opportunity to enhance the credibility of ES as-sessments in spatial landscape planning and management. However, it is not clear whether actual trade-offs/ synergies are consistent at different spatial and temporal scales and have similar responses to land use/land cover (LULC). In this study, based on ecological zoning, we simulated three typical ESs (soil retention, water yield and carbon sequestration) and their correlations in the Loess Plateau of China. Furthermore, the spatial relationships among ESs and LULC patterns and the temporal relationships among ESs and LULC transfer were discussed to identify possible implications for future land-use management. The results showed that there were obvious trade-offs or synergies at the spatial scale, and most synergetic relationships among the three ESs weakened during 2000-2020. However, unstable values are approximately 0 at the temporal scale, so the relationship using "space-for-time" approach exaggerates the temporal coupling among ESs. Most spatial ES interactions decreased with increasing ratio of forest and grassland, which deserves more attention in ecological restoration. It is indispensable to consider both spatial and temporal variations in ES relationships as LULC changes to achieve sustainable development in multiscale landscape planning.