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In view of the uneven distribution of water resources in the multi-lock and dam plains, the insufficient connection and layout of river systems such as isolated wetlands and pond barriers in floodplains, resulting in insufficient water resources allocation capacity, poor flood storage and drainage, and serious water ecological damage. Taking Langfang City as an example, based on graph theory and complex network theory, considering the flow capacity of DAMS and gates and human demand for water landscape, the importance of rivers and canals in river network—optimizing river network layout—establishing comprehensive evaluation index system of river network layout—comprehensive evaluation is taken as the main line to evaluate and determine the importance of rivers and canals in river network. The overall layout of river network connectivity in the north, middle and south regions of Langfang is optimized and evaluated. The results show that there are large differences in the current layout of waterways in the three regions, with poor river network connectivity in the southern part of the Langfang. The overall layout of the optimized river network was improved by 13.0%, 3.0% and 12.4% compared to the overall layout in Langfang. The optimized scheme provides technical support and theoretical basis for the optimal implementation of the regional river and lake connectivity project in Langfang.

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Research on the Optimization Layout of the Connection Layout of the Multi-lock Dam Plain River Network and Pond River System in Langfang City, China

  • 章节

  • 出版模式：

    开放获取

  • 发表日期：

    2025年

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  • Shuo Feng,
  • Jinyong Zhao,
  • Jing Zhang,
  • Yicheng Fu,
  • Wenqi Peng

摘要

In view of the uneven distribution of water resources in the multi-lock and dam plains, the insufficient connection and layout of river systems such as isolated wetlands and pond barriers in floodplains, resulting in insufficient water resources allocation capacity, poor flood storage and drainage, and serious water ecological damage. Taking Langfang City as an example, based on graph theory and complex network theory, considering the flow capacity of DAMS and gates and human demand for water landscape, the importance of rivers and canals in river network—optimizing river network layout—establishing comprehensive evaluation index system of river network layout—comprehensive evaluation is taken as the main line to evaluate and determine the importance of rivers and canals in river network. The overall layout of river network connectivity in the north, middle and south regions of Langfang is optimized and evaluated. The results show that there are large differences in the current layout of waterways in the three regions, with poor river network connectivity in the southern part of the Langfang. The overall layout of the optimized river network was improved by 13.0%, 3.0% and 12.4% compared to the overall layout in Langfang. The optimized scheme provides technical support and theoretical basis for the optimal implementation of the regional river and lake connectivity project in Langfang.