Earth System Science Data
Earth System Science Data
Earth System Science Data
Articles | Volume 18, issue 5
Articles | Volume 18, issue 5
https://doi.org/10.5194/essd-18-3289-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-18-3289-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 5
Data description article
 | 
18 May 2026
Data description article |  | 18 May 2026

OasisMap30: a 30 m annual land cover dataset of China's oases from 1987 to 2024

Peng Chen, Qiang Tang, Yanxu Liu, Yuchuan Luo, Linhai Cheng, Yijia Wang, Wenxuan Xu, and Shuai Wang

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Short summary
We developed OasisMap30, a 30 m annual land-cover dataset for Chinese oases covering 1987–2024, with an overall accuracy exceeding 90 %. The dataset reveals a 45.87 % expansion of Chinese oases, mainly driven by cropland expansion and grassland restoration. The consistent, high-resolution OasisMap30 dataset provides a valuable basis for investigating oasis landscape dynamics, socio-ecological responses, and sustainable development in dryland regions.
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