Work

The Application of Baseflow Separation and Master Recession Curves Methods in the Middle Yellow River Basins

Year: 2025

Type: article

Abstract: Baseflow is the part of the groundwater aquifer that replenishes surface streamflow and is one of the main components of studying the interaction between groundwater and surface water. It is a key factor in maintaining the healthy development of basin ecosystems and is of great significance for promoting the sustainable utilization and scientific management of water resources. However, the understanding of runoff and baseflow in the MYRB is still unclear, and the relationship between streamflow and baseflow has not been fully grasped. At the same time, there is currently no water balance function applicable to the MYRB. In order to solve the above problems, this article uses digital filtering methods to segment the baseflow and the MRC method to construct the main recession curve. The baseflow rate of MYRB was calculated, and the water balance function applicable to MYRB was found. The results obtained are as follows: the average annual baseflow index values for different basins were 0.81, 0.76, 0.81, 0.82, 0.79, and 0.79, respectively. The fitting of the Boussinesq function, the Maillet function, and the Brutsaert and Nieber function was significantly better than the other two functions.

Source: Water

DOI: 10.3390/w17192824

Authors: Haoxu Tong, Li Wan

Institutions: China University of Geosciences, China University of Geosciences (Beijing), Ministry of Water Resources of the People's Republic of China

Language: English

Topic: Hydrology and Watershed Management Studies

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: gold

Estimated APC paid: $3,137