Quantifying desertification control efficiency in a hyper-arid region: Spatiotemporal dynamics and policy synergies in Hotan Prefecture of China during 2005–2023

作者：SUN Lingxiao, L.I. Chunlan, Y.U. Yang, H.E. Jing, Yang Meilin, WANG Qian, LIANG Xueqiong, Ireneusz Malik, Małgorzata Wistuba · 发表于：Regional Sustainability · 年份：2025 · DOI：10.1016/j.regsus.2025.100275 · 被引用次数：1 · 研究领域：Remote Sensing in Agriculture、Land Use and Ecosystem Services、Climate change impacts on agriculture

Hotan Prefecture Desertification poses severe threats to socio-ecological resilience in arid regions, yet systematic quantification of desertification control efficiency remains limited. This study addressed this gap by developing an integrated Data Envelopment Analysis (DEA) Malmquist index to assess the spatiotemporal dynamics of desertification control efficiency in Hotan Prefecture (a hyper-arid region) of China from 2005 to 2023. To achieve this goal, we analyzed 5 indices spanning the total factor productivity, technical change, efficiency change, pure efficiency change, and scale efficiency change across 7 counties and 1 city in Hotan Prefecture. Results revealed that the growth rate of the total factor productivity is 12.0%, which is driven primarily by technical change and management optimization. However, significant spatiotemporal heterogeneity emerged. Temporally, rapid early gains during 2005–2010, with the total factor productivity value of 1.372, were dominated by technological progress, where technical change reached 1.291, while scale efficiency change helped sustain progress between 2010 and 2015. A recent decline in the total factor productivity to 0.987 during 2015–2023 underscored the risks associated with technological stagnation. Spatially, Qira County achieved the highest growth rate of the total factor productivity at 33.7% through dual advances in technology and management, which stands in sharp contrast to Moyu County’s stagnation, where the total f...