一种基于图论的闸控平原河网区河湖水文连通性估算方法
By constructing a complex river-lake-sluice network and combining graph theory and landscape ecology methods, the scientific and rational issues of hydrological connectivity assessment in plain river network areas were resolved, and quantitative assessment of hydrological connectivity was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING INST OF GEOGRAPHY & LIMNOLOGY
- Filing Date
- 2024-05-20
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to accurately quantify hydrological connectivity under complex terrain conditions, especially in plain river networks significantly controlled by dams and sluices. They neglect the impact of hydraulic structures on hydrological connectivity, leading to unscientific and unreasonable evaluations.
A graph theory-based approach is used to construct a complex river-lake-sluice complex topological network. By extracting data on lake surface, river network and hydraulic facilities, the structural connectivity and hydrological functional connectivity of the river system are calculated. Considering the scheduling rules and impacts of sluice gates and pumping stations, a comprehensive evaluation index set is constructed.
It enables a quantitative, objective, and operable assessment of the hydrological connectivity of rivers and lakes in plain river network areas, improving the scientific rigor and rationality of the evaluation, and is applicable to the hydrological connectivity analysis of large-scale river network areas.
Smart Images
Figure CN118427559B_ABST