Ecosystem services (ES) are essential for the well-being of humans, and their measurement is an effective approach for estimating regional sustainability. In this study, the Jiayuguan-Jiuquan region (JJR) was selected as a typical arid inland river basin. Four key ES in 2000 and 2010, such as, food provision, carbon storage, soil conservation, and water retention, were calculated by using several models. The spatiotemporal distribution characteristics of ES were interpreted. And the trade-offs and synergistic relationships among multiple ES at different scales were analyzed by using correlation. In addition, the hot spot areas of ES were identified by using hot spot analysis. The results showed that the annual average value of food provision per unit area in grassland and water areas increased by 8.74 and 0.45 kJ m⁻² year⁻¹, respectively from 2000 to 2010, whereas, on the cultivated land, the annual average value of food provision per unit area decreased from 2522.42 kJ m⁻² year⁻¹ in 2000 to 2115.35 kJ m⁻² year⁻¹ in 2010. The annual average value of carbon storage per unit area, the annual average value of soil retention per unit area and the annual average value of water retention per unit area increased by 0.38%, 84% and 147.5%, respectively from 2000 to 2010. The spatial distribution patterns indicated that the regions with high food provision values were mainly distributed in the Suzhou District and Jiayuguan City in the central and eastern regions of the study area. The overall distribution trend of carbon storage was stronger in the central and southeastern regions of the study area, but weaker in the north. Soil conservation increased gradually from the west to the east of the study area. At the county scale, most of ES showed a synergistic relationship, particularly between food-carbon and water-carbon. At the regional scale, there was a trade-off between food provision and soil conservation, and between water conservation and soil conservation. In addition, the spatial patterns of the ES hot spots indicated that the service areas of Class 0, class 1, Class 2, Class 3, and Class 4 accounted for 58.50%, 25.20%, 11.68%, 4.59%, and 0.03% of the total area, respectively. This study may be helpful for understanding the trade-offs and synergistic relationships among multiple ES in arid inland river basins. It may also contribute to multiple integrated planning, services interaction over management of a single service, and identify compatible services to provide win-win management options in the future.

生态系统服务（ES）对于人类的福祉至关重要，对其进行衡量是评估区域可持续性的有效方法。在这项研究中，嘉yu关—酒泉地区（JJR）被选为典型的干旱内陆河流域。通过使用几种模型计算了2000年和2010年的四个关键ES，例如食物供应，碳储存，土壤保持和保水。解释了ES的时空分布特征。通过相关性分析了不同规模下多个ES之间的取舍和协同关系。此外，通过使用热点分析来确定ES的热点区域。结果表明，草地和水域单位面积粮食年均供应量分别增加了8.74和0.45 kJ m ^-2年^-1，分别2000至10年，而中，耕地，粮食供应的每单位面积的年平均值为2522.42千焦降低米^-2年^-1 2000年2115.35千焦米^-2年^-12010年，单位面积的碳储量年均值，单位面积的土壤保持力的年均值和单位面积的水保持力的年均值分别从2000年增加0.38％，84％和147.5％。 2010年。空间分布格局表明，食品供应价值较高的区域主要分布在研究区中部和东部地区的苏州区和嘉yu关市。研究区域的中部和东南部碳储量的总体分布趋势较强，而北部则较弱。从研究区的西部到东部，土壤保持量逐渐增加。在县级范围内，大多数ES表现出协同关系，尤其是食物碳和水碳之间。在区域范围内，在粮食供应与土壤保护之间，水资源保护与土壤保护之间进行权衡。此外，ES热点的空间格局表明，0级，1级，2级，3级和4级服务区分别占58.50％，25.20％，11.68％，4.59％和0.03％。总面积。这项研究可能有助于了解干旱内陆河流域多个ES之间的取舍和协同关系。它还可能有助于进行多个集成计划，通过单个服务的管理进行服务交互，并确定兼容的服务以在将来提供双赢的管理选项。ES热点的空间格局表明，0级，1级，2级，3级和4级服务区分别占总面积的58.50％，25.20％，11.68％，4.59％和0.03％ ， 分别。这项研究可能有助于了解干旱内陆河流域多个ES之间的取舍和协同关系。它还可能有助于进行多个集成计划，通过单个服务的管理进行服务交互，并确定兼容的服务以在将来提供双赢的管理选项。ES热点的空间格局表明，0级，1级，2级，3级和4级服务区分别占总面积的58.50％，25.20％，11.68％，4.59％和0.03％ ， 分别。这项研究可能有助于了解干旱内陆河流域多个ES之间的取舍和协同关系。它还可能有助于进行多个集成计划，通过单个服务的管理进行服务交互，并确定兼容的服务以在将来提供双赢的管理选项。