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Should Desert and Desertification Regions Be Confused? New Insights Based on Vegetation Quality and Its Inter-Decadal Variations

文献类型：期刊论文

作者Jiang, Luguang1,2; Liu, Ye1
刊名LAND
出版日期2023-09-01
卷号12期号:9页码:18
关键词deserts and desertification China vegetation quality spatiotemporal change overlay classification
DOI10.3390/land12091734
通讯作者Jiang, Luguang(jianglg@igsnrr.ac.cn)
英文摘要As the most unique ecosystem on the Earth's surface, desert and desertification region cannot be confused. The current research on spatial distinction of desert and desertification region is still lacking. Based on NDVI (normalized difference vegetation index) data from 1998 to 2020, we aimed to distinguish the differences between desert and desertification region. Improvement and degradation of vegetation quality in China have coexisted in the past 20 years. Within the low value classification in 1998, the regions where vegetation quality remained High increase were mainly concentrated in Loess Plateau. Within the medium value classification in 1998, the High increase classifications were mainly distributed in the west of the Taihang Mountains, north of the Qinling-Daba Mountains, east of the Qinghai-Tibet Plateau, Yunnan-Guizhou Plateau, and the Northeast Plain. Within the high value classification in 1998, the High increase classification was distributed in the south of the Yangtze River. In 1998 and 2020, China had a total area of 2.50 million km2 of desert regions, accounting for 26% of China's land area. After 20 years of large-scale ecological protection, desert regions have hardly undergone significant changes. Desertification regions decreased from 2.80 million km2 to 1.67 million km2, a decrease of 40.3%.
WOS关键词KARST ROCKY DESERTIFICATION ; NET LAND DEGRADATION ; SAHEL ; SCIENCE ; CHINA
资助项目The authors thank the editors and anonymous referees for their valuable comments on an earlier version of this manuscript.
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者MDPI
WOS记录号WOS:001076056000001
资助机构The authors thank the editors and anonymous referees for their valuable comments on an earlier version of this manuscript.
源URL[http://ir.igsnrr.ac.cn/handle/311030/198583]  
专题中国科学院地理科学与资源研究所
通讯作者Jiang, Luguang
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Jiang, Luguang,Liu, Ye. Should Desert and Desertification Regions Be Confused? New Insights Based on Vegetation Quality and Its Inter-Decadal Variations[J]. LAND,2023,12(9):18.
APA Jiang, Luguang,&Liu, Ye.(2023).Should Desert and Desertification Regions Be Confused? New Insights Based on Vegetation Quality and Its Inter-Decadal Variations.LAND,12(9),18.
MLA Jiang, Luguang,et al."Should Desert and Desertification Regions Be Confused? New Insights Based on Vegetation Quality and Its Inter-Decadal Variations".LAND 12.9(2023):18.

入库方式： OAI收割

来源：地理科学与资源研究所

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