Abstract
Wetlands as an important ecosystem type have been damaged in recent years and restoration of wetland ecosystem functions through ecological water replenishment is one of the important ways. The present study involved the construction of a novel ecological water replenishment model for Jilin Momoge National Nature Reserve (JMNNR) using the interval two-stage stochastic programming (ITSP) method. Breaking down traditional economic models that often sacrifice environmental benefits, the model aims to replenish the ecological water in JMNNR, allocate the ecological water resources scientifically, restore the wetland function of the reserve, improve the functional area of the reserve, enhance the net carbon sequestration capacity of the reserve, and complete the reconstruction of the ecosystem, while considering the ecological service value (ESV) of the reserve to achieve a joint increase in the ecological and economic benefits. The ITSP model constructed in the present study overcame the limitation that the original project recommendation was a single recommended value, and the results are presented in the form of intervals to improve flexibility in decision making to allow the individuals responsible for under-taking decisions to bring focused adjustments according to the actual decision-making conditions and increase the selectivity of the decision-making scheme. The present report discusses the construction of an ITSP model for the ecological water replenishment of JMNNR in an attempt to effectively improve both economic benefits and ecosystem restoration of the reserve, achieve the reconstruction of the JMNNR ecosystem, and provide a selective decision space for the key decision-makers to formulate and optimize the project operation and the management plan. The use of the ITSP model as a pre-procedural basis for the implementation of the project and the simulation of the effects of the implementation of the project can effectively avoid the decision limitations that exist when carrying out the project directly. The ITSP model constructed in this paper can also be used as a theoretical guide for water replenishment projects in different areas of the world, and the model parameters can be reasonably adjusted to achieve better results when used according to the actual local conditions.
Highlights
IntroductionA wetland is a transitional zone of biodiversity and productivity at the interface of land and water
Jilin Momoge National Nature Reserve (JMNNR), and the corresponding four water intake projects were used for optimizing the used the interval two-stage stochastic programming (ITSP) for method to construct an ecological under water dry, replenishment model for JMNNR, initial scheme ecological water replenishment flat, and abundant water years taking into account the disposable water volume, lake planning scope, ecological benefit, to achieve the maximum economic benefit, restore the functional area of the wetland, and net carbon sequestration, and other factors as constraints
On the premise of restoring the ecological environment of the reserve, in order to maximize economic benefits, the current study involved the development of an eco-logical water replenishment model for JMNNR using the ITSP method, which aimed at the wetland water shortage, and took into account uncertainties in the ecological replenishment process and characterized simulation results as interval values, thereby broadening the scope of decision making
Summary
A wetland is a transitional zone of biodiversity and productivity at the interface of land and water. Yang et al [15] developed an integrated economic-hydrological model to examine the cost-effectiveness and restoration of a 75 km wetland restoration scenario in the Southern Tobacco Creek watershed in the Canadian Prairies, and the simulations found the importance of spatially directed wetland restoration based on the economic cost to environmental benefit ratios to achieve cost effectiveness; Hua et al [16] proposed an ecohydrological method for determining the potential area of freshwater wetlands to be restored, establishing a multi-objective habitat suitability index model modification area to be restored, and restoring the balance between the hydrological network and the ecological water demand and ecological water supply modification areas; Chen et al [17] used long time series remote sensing data to improve hydrological conditions in the Zhalong wetland by ecological water replenishment project. Breaking the limitations of traditional economic models, completely considering the ecological functions of the reserve, restoring the functional area of each lake wetland, and enhancing the ESV of each ecological service index, such that both economic benefits and ecological function of the wetland are optimized
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