Wuhu Institute of Technology

Abstract Context Climate change is increasing the frequency and severity of droughts worldwide, with profound consequences for forest ecosystems. Although previous studies suggest that taller forests are more vulnerable during drought, their capacity to recover following drought remains poorly understood, creating substantial uncertainty for forest management. Objectives This study aimed to quantify how canopy height influences post-drought forest recovery at a regional scale. Methods We investigated evergreen broad-leaved forests in southwest China following a severe drought in 2010. We used the MODIS Enhanced Vegetation Index (EVI) to derive forest recovery metrics, the Standardized Precipitation Evapotranspiration Index (SPEI) to classify drought severity, and a LiDAR-derived canopy height map. We then used linear regression and ANOVA to evaluate relationships between forest recovery and canopy height. Results Short-term (1 year) recovery increased with the intensity of the preceding drought. Under severe and extreme drought conditions, recovery increased significantly with canopy height ( p < 0.001). In contrast, long-term (3 years) recovery did not differ significantly among canopy height classes. Conclusions Our results indicated that although tall forests may experience greater drought impacts, they exhibit stronger short-term recovery, resulting in comparable long-term resilience across canopy-height classes. This size-dependent recovery dynamic is a previously underappreciated mechanism that should be incorporated into forest dynamics models and climate-adaptive management strategies.

This study systematically investigates the mechanical performance of cryogenic storage tanks in liquid hydrogen service through integrated experimental and numerical approaches, revealing several critical findings. The thermal analysis demonstrates significantly higher heat leakage at fixed‐end support structures compared to sliding‐end configurations, with the minimum temperature occurring at the upper fixed‐end support. Structural assessments show that thermal effects dominate the inner vessel's deformation, accounting for 95.20% of total displacement, while inducing substantial stress increases in all support structures except the upper sliding‐end support. Dynamic characterization under cryogenic conditions reveals systematic reductions in natural frequencies that amplify with increasing modal order, accompanied by localized vibration peaks exhibiting pairwise mode patterns. Fatigue life analysis indicates improved maximum vessel longevity under cryogenic exposure, though most supporting components experience reduced minimum life except for the upper sliding‐end structure.