[Identification of Ecological Zoning in Gansu Province by Coupling Ecosystem Service Value and Landscape Ecological...

Coupling ecosystem service value （ESV） with landscape ecological risk （LER） for ecological zoning in Gansu Province is of significant importance for accurately identifying ecological and environmental problems arising from rapid urbanization， enhancing regional ecological security， and achieving sustainable development goals. The PLUS model was used to simulate the land use pattern of Gansu Province in 2030 under the scenarios of natural development， ecological protection， economic development， and construction planning. We adopted the modified value equivalent method to evaluate ESV， combined landscape disturbance and vulnerability models to calculate LER， and identified ecological zones in Gansu Province through empirical Bayesian modified spatial autocorrelation analysis. The results indicate that： ① Ecological protection and construction planning scenarios increased ESV by 1.28% and 1.54%， respectively. Notably， the increase in water resource supply function under the construction planning scenario was the highest， reaching 3.19%. ② LER presented a spatial differentiation feature of "low in the northwest and high in the southeast，" with high-risk areas concentrated on the Loess Plateau in eastern Gansu and the edge of oases in Hexi. The degree of landscape fragmentation was significantly positively correlated with human activity intensity. ③ The spatial clustering of ESV and LER in Gansu Province was mainly based on low value low risk in the northwest and high value high risk in the southeast. Research has found that integrating ecological protection planning and development strategies can effectively coordinate the contradiction between ecological service supply and risk carrying in Gansu Province， providing effective support for its ecological spatial planning.