Abstract

The Interconnected River System Network Project (IRSNP) is a significant water supply engineering project, which is capable of effectively utilizing flood resources to generate ecological value, by connecting 198 lakes and ponds in western Jilin, northeast China. In this article, an optimization research approach has been proposed to maximize the incremental value of IRSNP ecosystem services. A double-sided chance-constrained integer linear program (DCCILP) method has been proposed to support the optimization, which can deal with uncertainties presented as integers or random parameters that appear on both sides of the decision variable at the same time. The optimal scheme indicates that after rational optimization, the total incremental value of ecosystem services from the interconnected river system network project increased 22.25%, providing an increase in benefits of 3.26 × 109 ¥ compared to the original scheme. Most of the functional area is swamp wetland, which provides the greatest ecological benefits. Adjustment services increased obviously, implying that the optimization scheme prioritizes ecological benefits rather than supply and production services.

Highlights

  • Ecosystem services are critical for human existence, development, and wellbeing

  • The interconnected river system network project (IRSNP) in western Jilin Province is a typical example of water supply engineering that can efficiently utilize flood resources to restore wetland areas, which represents a major role in ecological value regeneration, and has a significant impact on local ecological economic development and human habitation improvement

  • The results show that the ecological benefits from swamp wetlands are the highest for all four functional areas, andWater increase from 35.59% to 48.65% after optimization

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Summary

Introduction

Ecosystem services are critical for human existence, development, and wellbeing. In recent decades, significant progress has been made regarding the theory and assessment technologies used for ecosystem service evaluation [1,2,3,4,5,6,7]. A benefit analysis of water infrastructure engineering based on ecosystem service benefits can improve the evaluation of wetland restoration projects in particular, and ecosystem restoration in general. The interconnected river system network project (IRSNP) in western Jilin Province is a typical example of water supply engineering that can efficiently utilize flood resources to restore wetland areas, which represents a major role in ecological value regeneration, and has a significant impact on local ecological economic development and human habitation improvement. Integer programming (IP) is a special type of linear program, which adds the attribute specification of integers to the optimization model [27,28,29]. It gradually evolved from the cutting plane method proposed by Gomory [30]. In the 0-1 integer linear program, the values of all or part of the decision variable are either 0 or 1

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