Abstract
In the present paper, an optimization model of the ecological water replenishment quantity of Boluo Lake wetland was constructed for ecological water replenishment in the Boluo Lake National Nature Reserve based on the interval two-stage stochastic programming (ITSP) method, which scientifically allocates the ecological water resources and enhances the utilization of flood resources in order to meet the minimum ecological water replenishment quantity requirement to meet the local economic and social water demand, to restore the wetland function of the reserve, and to improve the ecological environment. In addition, it considers the ecological service value of the reserve in order to achieve a shared increase in the ecological and economic benefits. The optimization model of the ecological water replenishment of Boluo Lake wetland considered the minimum ecological water replenishment as the objective function, while the water diversion capacity, water supply capacity, water diversion sequence, functional area, and ecological service value of the Lake bubble were utilized as constraints in order to restore the ecosystem function of the Boluo Lake National Nature Reserve. The results from the model revealed that the amount of ecological water replenishment was significantly reduced after optimization simulation, with the maximum reduction range in the ecological water replenishment being −100.00% and −74.58%. In addition, the total amount of flood diversion was significantly increased, and the flood resources could be fully utilized. Moreover, the recovery effect on the lake and pond functional areas was significant and compared much better to that prior to the ecological water replenishment, which was up to 2300.00% and 1987.59%. The ecological service value also increased significantly, and the rate of this increase was as high as 23.90% and 21.58%. In the present study, an optimization model was constructed for the ecological water replenishment of the Boluo Lake wetland supplement project based on the interval two-stage stochastic programming method, which would achieve the entire scope of ecological and economic benefits of the ecological water replenishment project by realizing the ecological system reconstruction and providing a feasible and reliable plan to the decision-makers.
Highlights
Wetlands are rich in biodiversity and are considered to be one of the most productive and economically valuable ecosystems in the world [1,2,3] because they provide the ecosystem products and services necessary for human activities, such as fish breeding, plant-carbon sequestration, biodiversity protection, cultural and entertainment services, etc. [4,5,6,7,8]
When applying the interval two-stage stochastic programming (ITSP) model, the planning area should be redefined for the size of the concerned study area, suitable scenarios should be designed, the water diversion sequence should be established according to the local water resource structure, the proportion of water supply through various modes should be adjusted according to the local water supply capacity, and the ITSP model should be customized for the actual local situation, to provide the decisionmakers with a decision plan that is most consistent with the actual local situation
When applying the ITSP model, a suitable ecological service indicator system should be selected for the assessment of the ecological service values based on the main ecological functions of the Momoge Reserve, and relevant adjustments should be incorporated in the constraints according to the actual situation of this reserve
Summary
Wetlands are rich in biodiversity and are considered to be one of the most productive and economically valuable ecosystems in the world [1,2,3] because they provide the ecosystem products and services necessary for human activities, such as fish breeding, plant-carbon sequestration, biodiversity protection, cultural and entertainment services, etc. [4,5,6,7,8]. The Boluo Lake National Nature Reserve, which is the only large natural wetland in the central part of the Jilin Province, belongs to the “Inland Wetland and Water Ecosystem” type of natural ecosystem. In recent years, this wetland ecosystem has been critically damaged due to the arid climate and over-exploitation by humans. The main objectives of ecological recharge are to restore hydrological and soil conditions in degraded wetlands, restore vegetation and fauna, increase species composition and restore biodiversity, and to achieve sustainable development of wetland ecosystems, which are beneficial to the local economy. A scientific allocation of the ecological water replenishment is crucial in ecological water replenishment projects
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
