Influential paths of ecosystem services on human well-being in the context of the sustainable development goals.

Ecosystem services (ESs) and their demands from people are closely related to human well-being (HWB). Understanding of the influential paths of ecosystem services on human well-being is significant to sustainable landscape management. This study explored the supply of ecosystem services and the ecosystem service supply-demand relationships (i.e. the ecological supply-demand ratio, ESDR) in the Central and Western Inner Mongolia, as well as HWB by combining the Millennium Ecosystem Assessment (MA) and the sustainable development goals of the United Nations (SDGs). A structural equation model (SEM) was built to quantify the influential paths of the ESs on the HWB. The results indicated that: (1) The HWB was improved during 2000-2018. (2) The supporting services promoted the provisioning services and the regulating services directly. (3) The provisioning services and the regulating services had positive direct influences on the HWB, and also affected the HWB through the ESDR indirectly. The combination of the supporting services and the ESDR presented a panorama of the influential paths of ecosystem services on the HWB and promoted the understanding of the driving mechanisms. Assessments on the ESs, the HWB in the context of SDGs, and their influential paths were instructive for decision-making towards sustainable landscape management.