Characteristics and Influencing Factors of Soil Shear Strength in Gully Erosion at Different Developmental Segments of Subalpine Meadows

The data were obtained from field sampling conducted in July 2024 in the gully erosion area of the subalpine meadow on Gaoben Mountain, Kunming, Yunnan Province. Laboratory analyses were completed at the Water-Saving Irrigation Experiment Center of Yunnan Agricultural University in Kunming. The dataset includes soil shear strength, physicochemical properties, and mineral composition from different gully segments (gully head, gully middle, and gully outlet) and positions (gully edge, gully wall, and gully floor) within the subalpine meadow gully system.