生态系统服务权衡与调控是地理学、生态学研究的前沿和热点，发展生态系统服务评估模型是创新生态系统服务研究的重要途径和手段。本研究以陕北黄土丘陵沟壑区为典型区域，以区域生态系统服务空间评估与优化模型（Spatial Assessment and Optimization Model for Regional Ecosystem Services, SAORES）为基础，系统开展SAORES模型参数率定与校验、模型改进与二次开发、生态系统服务评估与关系权衡、气候变化情景下的生态系统服务调控，以期在发展本土化生态系统服务评估模型、创新生态系统服务研究工具的同时，辨析区域尺度典型生态系统服务权衡/协同的动态变化与作用机制，探讨多目标情景下的生态系统服务调控途径，为黄土高原生态恢复与可持续性提供科学依据。

The trade-off and regulation of ecosystem services are the frontier and hot spot of geographical and ecological research. The development of ecosystem services evaluation model is an important measures for the innovation research of ecosystem services. The study area of the this project is located in the loess hilly and gully area of northern Shaanxi Province and the Spatial Assessment and Optimization Model for Regional Ecosystem Services (SAORES) is taken as the technology platform. The study will calibrate and verify the parameters of SAORES Model, improve and redevelop the model, do ecosystem services evaluation and trade-off, and regulate the ecosystem services under climate change scenarios. Based on those research above, the study will develop localized ecosystem service evaluation model, innovate ecosystem services research tools and identify the dynamic change and mechanism of the trade-off and synergy of typical ecosystem services for the study area. Then the ecosystem services regulation under multiple targets scenarios will be discussed to providing scientific basis of the ecological restoration and sustainability in the Loess Plateau.