Analysis of Changes in Water Body Area in Southwest, China Based on GEE


  • Zhouhe Gege
  • Ke Liang
  • Boao Li



Google Earth Engine, Southwest, Changes in the area of water bodies, Spatiotemporal analysis.


It is of great significance for policymakers to develop management strategies for water resource regulation, habitat protection and wetland restoration. Based on the Google Earth Engine platform, this study extracted remote sensing data of water quality change in Southwest China in the past 20 years, combined with ArcGIS for spatial analysis, and used M-K trend test and mutation test to analyze the long-term temporal variation of water bodies in Southwest China. The analysis shows that the water area in Southwest China increased every five years from 2000 to 2020, but the growth rate changed, while the growth rate slowed down from 2010 to 2020, and the increase mainly occurred in the central and western regions. The results show that in the past 20 years, the water surface area in Southwest China has shown a statistically significant increasing trend, especially after 2020, this trend is more statistically significant. This study can provide a theoretical basis for the protection of water environment in Southwest China.


Download data is not yet available.


Wang Yunhui. Research on the area changes of major lakes in China in the past 30 years based on satellite remote sensing images [D]. Yunnan Normal University, 2023.

Liu Jinfeng. Comparative study on lake area changes and influencing factors in Namtso and Selinco from 1976 to 2021 [D]. Northwest A&F University, 2023.

Zhang Chengyi, Jiang Qigang, Li Yuanhua, et al. Dynamic monitoring of lake changes and climate background in Tibet based on RS/GIS [J]. Journal of Earth Science and Environment, 2008 (01): 87 - 93.

Yan Lijuan. Impact of climate change on Tibetan Lake changes (1973-2017) [J]. Acta Earth Sinica, 2020, 41 (04): 493 - 503.

Yu Guoan, Yue Pengsheng, Zhang Chendi, etc. River hydrology research in southeastern Tibet: Progress and challenges [J]. Science Bulletin, 2024, 69 (03): 394 - 413.

Guo Fengjie, Li Ting, Ji Min. Analysis and prediction of time series characteristics of Qinghai Lake area from 2000 to 2019 [J]. Science, Technology and Engineering, 2022, 22 (02): 740 - 748.

Jin Yanli. Research on water body extraction method of Landsat satellite data based on cloud platform[D]. Liaoning University of Science and Technology, 2021.

CHEN Zhongping, XU Qiang. Mann-Kendall test method to analyze the characteristics of precipitation time-range changes [J]. Science and Technology Bulletin, 2016, 32 (06): 47 - 50.

Zhao Jiayang. Analysis of spatial and temporal characteristics, abrupt changes and future trends of climate change in China from 1960 to 2013 [D]. Fujian Agriculture and Forestry University, 2017.

Lu Xianghui, Zhang Haina, Bai Hua et al. Characteristics of spatial and temporal changes in rainfall erosive power in the Ganjiang River Basin from 1986 to 2015 [J]. Journal of Yangtze River Academy of Sciences, 2020, 37 (10): 51 - 58.




How to Cite

Gege, Z., Liang, K., & Li, B. (2024). Analysis of Changes in Water Body Area in Southwest, China Based on GEE. Highlights in Science, Engineering and Technology, 104, 236-241.