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.
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.
the Creative Commons Attribution 4.0 License.
OasisMap30: a 30 m annual land cover dataset of China's oases from 1987 to 2024
Peng Chen
Chongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station, School of Geographical Sciences, Southwest University, Chongqing, 400715, China
Qiang Tang
CORRESPONDING AUTHOR
Chongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station, School of Geographical Sciences, Southwest University, Chongqing, 400715, China
Yanxu Liu
State Key Laboratory of Earth Surface Processes and Hazards Risk Governance, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
Yuchuan Luo
Chongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station, School of Geographical Sciences, Southwest University, Chongqing, 400715, China
Linhai Cheng
Chongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station, School of Geographical Sciences, Southwest University, Chongqing, 400715, China
Yijia Wang
School of Geography, South China Normal University, Guangzhou, 510631, China
Wenxuan Xu
Chongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station, School of Geographical Sciences, Southwest University, Chongqing, 400715, China
Shuai Wang
State Key Laboratory of Earth Surface Processes and Hazards Risk Governance, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
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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.
We developed OasisMap30, a 30 m annual land-cover dataset for Chinese oases covering 1987–2024,...
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