500-m Raster and 5-Year Step Dataset of Classified Grassland Degradation in Arid and Semi-arid Region of Northwest China (2001-2023)
CAI Diwen1ZHANG Yingqian1LUO Wenhui1LIANG Jiahong1AI Zeying1DONG Zhaoji1SHANG Zhihai*1
1 School of Geographical Sciences，Lingnan Normal University，Zhanjiang 524048，China
DOI:10.3974/geodb.2025.11.05.V1
Published:Nov. 2025
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Key Words：
Grassland degradation,degree of degradation,Arid and Semi-arid Region of Northwest China
Abstract：
Based on the annual grassland degradation degree index (GDI) dataset in the Arid and Semi-arid Region of Northwest China, the authors calculated the average GDI value over many years and classified the grassland degradation degree into 4 types according to the guidelines regarding the loss rate of grass yield following GB 19377-2003: not degraded (code 1), slightly degraded (code 2), moderately degraded (code 3), and severely degraded (code 4). The dataset includes classification results for the entire time period (2001-2023) and classification results every 5 years (2001-2005, 2006-2010, 2011-2015, 2016-2020, and 2021-2023). The dataset has a spatial resolution of 500 m, and is archived in .tif and .txt format, consisting of 37 data files with data size of 261 MB (Compressed into one file with 5.55 MB).
Foundation Item：
National Natural Science Foundation of China (42301003); Lingnan Normal University (ZL22032)
Data Citation：
CAI Diwen, ZHANG Yingqian, LUO Wenhui, LIANG Jiahong, AI Zeying, DONG Zhaoji, SHANG Zhihai*. 500-m Raster and 5-Year Step Dataset of Classified Grassland Degradation in Arid and Semi-arid Region of Northwest China (2001-2023)[J/DB/OL]. Digital Journal of Global Change Data Repository, 2025. https://doi.org/10.3974/geodb.2025.11.05.V1.
References：
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[4] Liu, S. L., Wang, T., Kang, W. P., et al. Several challenges in monitoring and assessing desertification [J]. Environmental Earth Sciences, 2014, 73(11): 7561-7570.
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[6] Cai, D. W., Liu, W. H., Tan, Y. Y., et al. Spatial-temporal characteristics of grassland degradation in Xinjiang from 2001 to 2023 based on climate production potential baseline [J]. Journal of Desert Research, 2025, 45(5): 1-11.
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Data Product:
| ID |
Data Name |
Data Size |
Operation |
| 1 |
NW_Recls_GDI.rar |
5688.40KB |
|