Spatiotemporal Variation Characteristics and Influencing Factors of Lakes on the Inner Mongolia Plateau

• Published in: Shui tu bao chi xue bao Vol. 39; no. 2; pp. 92 - 101
• Main Authors: JIANG Yudi, YU Yang, WANG Zhengkun, LIU Dianjun
• Format: Journal Article
• Language: Chinese
• Published: Editorial Department of Journal of Soil and Water Conservation 01.04.2025
• Subjects: inner mongolia plateau; lake area; number of lakes; spatiotemporal changes
• ISSN: 1009-2242
• DOI: 10.13870/j.cnki.stbcxb.2025.02.004

［Objective］ Conducting research on lake area changes on the Inner Mongolia Plateau is of great significance for deep understanding of regional water resource changes. ［Methods］ The Google Earth Engine (GEE) platform and Landsat image data were used to obtain annual lake area data on the Inner Mongolia Plateau from 1988 to 2021, and methods such as trend testing and hierarchical segmentation were used to analyze the spatiotemporal change characteristics of lakes and their influencing factors. ［Results］ 1) From 1988 to 2021, the area and number of lakes in Inner Mongolia showed a trend of first reduction and then recovery. On an inter-annual scale, the lake area was the largest in 2021, reaching 4 363.63 km2, and the smallest in 2002, only 1 915.61 km2. In terms of the number of lakes, the number of lakes larger than 1 km2 increased from 71 in 2002 to 458 in 2021. 2) Between 2012 and 2021, the area of lakes on the Inner Mongolia Plateau gradually recovered, and mainly concentrated in Alxa League, Xing’an League