Wind erosion has notable impacts on ecology, water supply and regional climate, but its distributions and long-term changes are still poorly quantified for the Tibetan Plateau (TP). This study develops a coupled land-surface wind-erosion model (HRLDAS-WEPS) in two dimensions horizontally to analyze wind-erosion distributions and its temporal variations under the climate change in 1979–2015 over the entire TP. Two model enhancements are also used, including the application of MODIS vegetation datasets and the optimization of snow-cover parameterizations. Evaluation results indicate that the enhanced coupled model can generally represent the wind-erosion distributions over the TP, being mainly located in the arid and semi-arid areas and occurring in winter and spring, as compared with station observations and satellite datasets. In 1979–2015, wind erosion has a significant (P < 0.01) decreasing trend of −0.54 kg m⁻² yr⁻¹ for annual total soil loss averaged over the arid and semi-arid areas of the TP, which is mainly due to the significant (P < 0.01) declining wind speed and increasing soil moisture. The severest wind-erosion reduction is located to the northwest of the 200 mm precipitation line and the Qaidam Basin. Furthermore, a significant turning point of wind-erosion variation is found in 1992. Specifically, wind erosion over the TP decreases from 1979 to 1991 (−1.26 kg m⁻² yr⁻¹), and then stays at a low level with a slight increase (0.08 kg m⁻² yr⁻¹) since 1993. This is probably due to the abrupt change of wind speed over the TP in 1991.

风蚀对生态，水供应和区域气候有显着影响，但对于青藏高原（TP），其分布和长期变化仍知之甚少。这项研究开发了一个水平二维耦合的陆面风蚀模型（HRLDAS-WEPS），以分析整个TP上1979-2015年气候变化下的风蚀分布及其时间变化。还使用了两个模型增强功能，包括MODIS植被数据集的应用和积雪参数化的优化。评估结果表明，与台站观测和卫星数据集相比，增强的耦合模型通常可以表示TP上的风蚀分布，主要位于干旱和半干旱地区，并在冬季和春季。在1979–2015年，P的干旱和半干旱地区的年土壤总损失的平均 趋势为-0.54 kg m ^-2 yr ^-1的下降趋势（P  <0.01），这主要是由于风速显着（P <0.01）下降和增加土壤湿度。最大程度的风蚀减少作用位于200 mm降水线和柴达木盆地的西北部。此外，在1992年发现了风蚀变化的重要转折点。具体而言，TP上的风蚀从1979年到1991年减少（-1.26 kg m ^-2 yr ^-1），然后保持在低水平并有轻微的变化。增加（0.08 kg m ^-2 yr ^-1）自1993年以来。这很可能是由于1991年TP上风速的突然变化所致。