A dataset of arbor diversity and soil physicochemical properties in Hainan tropical forests

This dataset presents the results of a large-scale field survey of tree communities conducted in 2024 across Hainan key tropical forest areas: Wuzhi Mountain, Bawangling, Diaoluo Mountain, Yinggeling, Jianfengling, and Tongguling. The survey established 120 plots (20 m × 20 m) to record individual tree attributes, including Chinese and Latin species names, diameter at breast height, tree height, crown dimensions (major and minor axes), and abundance.

The dataset further includes calculated values for α diversity (Simpson, Shannon-Wiener, Species richness, and Pielou evenness indices) and β diversity (Sørensen pairwise dissimilarity, as well as Bray-Curtis and Jaccard indices). All data have undergone strict quality control procedures to ensure accuracy, providing a valuable resource for investigating spatial distribution patterns of plant composition and diversity in tropical forest ecosystems.