Abstract:[Objective]This study explored the spatiotemporal variation patterns of vegetation during the dry season and their response to drought resistance under different ecological restoration modes, aiming to provide fundamental data and theoretical support for vegetation ecological restoration in the dry-hot valley region. [Methods] The study focused on three types of restoration modes: an artificially constructed arbor-shrub-grass stereoscopic restoration terrace (ASH) that had been restored for three years, naturally restored land post artificial terrace development (NET), and naturally restored shrub-grassland (SG), with degraded land (DG) as a control. Fixed sample plots were established, and a combination of vegetation community surveys, drone monitoring, and microclimate recording was used to compare species composition, species diversity, vegetation coverage, and microclimate characteristics between different plots at the beginning and end of the dry season. [Results](1) Species Diversity: During the dry season, ASH exhibited minimal changes in species composition, high species diversity, and no obvious dominant species. NET showed high species evenness but relatively low species richness. SG experienced significant changes in species composition, with both species richness and evenness showing significant declines by the end of the season. (2) Vegetation Coverage: At the beginning of the dry season, the total fractional vegetation cover (FVC) ranked as ASH > NET > SG > DG, and this pattern remained consistent at the end of the dry season. The degree of change in FVC between the beginning and end of the dry season was greatest in NET, followed by ASH, with DG showing the least change. ASH had significantly higher coverage across all vegetation layers compared to other plots. (3) Microclimate Regulation: Microclimate Regulation: During the early and late dry seasons, the ASH vegetation type exhibits lower temperatures and higher humidity characteristics compared to other vegetation types. [Conclusion]The arbor-shrub-grass stereoscopic vegetation structure demonstrates significant advantages in regulating microclimate and maintaining ecological stability, making it suitable for promotion in regions with extreme climatic conditions, such as dry-hot valleys.