As a highly valuable region that provides multiple important ecosystem services, the Qinghai-Tibetan Plateau is vulnerable to climate change and human activities, which have induced significant land cover changes from 1990 to 2015. However, the impact of these changes on the ecosystem service values in the 25 years remains unknown. In this study, we used the combined approach of land cover proxy and unit value transfer method to assess changes in ecosystem service values. The results showed that total ecosystem service values including provisioning, regulating, habitat and cultural services has increased from ca. 1.77 trillion in 1990 to ca. 1.81 trillion US dollars in 2015, mainly due to the considerable expansion of rivers and lakes and a decrease of bare lands and glacier and snow. Although the elasticity analysis found that the response of ESV changes is not that elastic to LULC changes in three periods, 1990–2000, 2000–2010 and 2010–2015, it can still be used as a detector to locate unusual changes in different regions and to indicate urgent need for specific ecosystem management.

作为提供多种重要生态系统服务的极具价值的地区，青藏高原易受气候变化和人类活动的影响，在1990年至2015年间引起了巨大的土地覆盖变化。但是，这些变化对生态系统服务价值的影响在25年中仍然未知。在这项研究中，我们使用了土地覆被代理和单位价值转移方法相结合的方法来评估生态系统服务价值的变化。结果表明，包括供应，调节，栖息地和文化服务在内的总生态系统服务价值已从大约增加。1990年约为1.77万亿美元。2015年为1.81万亿美元，主要是由于河流和湖泊的大量扩张，以及裸露的土地，冰川和积雪的减少。