Data for: A salinization–desertification integrated remote sensing ecological index for monitoring eco environmental dynamics in arid and semi arid lands: Application to Inner Mongolia

This dataset contains the ARSEI (Advanced Remote Sensing Ecological Index) data, meteorological driving factors, and socioeconomic driving factors for Inner Mongolia Autonomous Region from 2000 to 2025, which supports the findings of the study titled A salinization–desertification integrated remote sensing ecological index for monitoring ecoenvironmental dynamics in arid and semiarid lands: Application to Inner Mongolia. The dataset fully underpins the spatiotemporal analysis of ecological quality changes and driving mechanism exploration in the paper. It is available under the CC-BY-4.0 license, and can be used for reproducibility checks of the research results, as well as further ecological analysis in related regional studies.