青藏高原土地资源供给能力数据集（2000-2020）

土地资源供给能力是决定土地资源承载力的重要指标。该数据集包括：（1）青藏高原耕地资源供给能力数据；（2）青藏高原草地资源供给能力数据。耕地资源供给能力是基于西藏和青海统计局各县域主要农产品产量，归纳关键节点粮食、肉、蛋、奶畜产品产量；草地资源供给能力是基于西藏统计局草地面积和牲畜数量数据，结合野外采样数据与气候数据，依据地上生物量模型，计算关键节点典型县域草地平均生物量与总生物量。数据可用于分析青藏高原的土地供给能力空间差异，对青藏高原的土地承载力研究有重要意义。

Land resource supply capacity is a critical indicator determining land resource carrying capacity. This dataset includes two components: (1) data on cultivated land resource supply capacity in the Qinghai-Tibet Plateau; (2) data on grassland resource supply capacity in the Qinghai-Tibet Plateau. The cultivated land resource supply capacity is derived from county-level major agricultural product output data from the statistical bureaus of Tibet Autonomous Region and Qinghai Province, by summarizing the yields of grain, meat, eggs, milk and livestock products at key nodes. The grassland resource supply capacity is calculated based on grassland area and livestock quantity data from the Tibet Statistical Bureau, combined with field sampling data and climate datasets, and applying the aboveground biomass model to estimate the average and total biomass of grasslands in typical counties at key nodes. This dataset can be used to analyze spatial disparities in land supply capacity across the Qinghai-Tibet Plateau, and holds important academic significance for research on land carrying capacity in this region.