Analysis of river and lake remote sensing monitoring for the Mother River Recovery Action
Wang Shiyan
Du Fei
Jiang Zhi
Sun Long
Ba Yibo
Wang Xu
Wang Qianqian
Li Boqin
Xiao Zijun
Abstract：Remote sensing monitoring technology compensates for the shortcomings of traditional monitoring methods and provides strong technical support for the implementation and supervision of the Mother River Recovery Action.A total of 79 rivers and 9 lakes,amounting to 88 water bodies,are included in the Mother River Recovery Action List(2022-2025)issued by the Ministry of Water Resources.A comparative analysis of remote sensing monitoring images before(April 2021)and after(April 2024)the implementation of the Mother River Recovery Action reveals significant improvements:the number of continuously flowing rivers increased from 27 to 48,while the number of rivers with interrupted flow decreased from 52(with a total length of 1339 km)to 31(with a total length of 582 km).The water surface area of the 9 lakes increased from 390 km2 to 417 km2.Overall,after the recovery actions,the 88 rivers and lakes have a combined total length of 9379 km and a water area of 1348 km2,reflecting an increase of 756 km and 211 km2,respectively,compared to the same period before the action.Based on the analysis of the remote sensing monitoring data,recommendations are made to further advance the use of remote sensing technology in supporting the Mother River Recovery Action.
Keywords：mother river recoverymonitoring indicatorsremote sensing monitoringwater extraction
Publication Date：2024-07-12
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 11-16 )