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针对黄河三角洲湿地退化现状,设计了三种湿地修复水量预案。利用水文模型SOBEK和地下水模型Visual Modflow对不同补水预案下湿地水文过程进行模拟,将水文模拟结果与湿地立地条件、植被条件在景观决策支持模型LEDESS框架下进行集成,对三种补水预案下湿地修复情景进行模拟和评价。研究表明,对黄河三角洲湿地的恢复,根据区域湿地条件差异,其恢复目标及所需要的适宜水量也有所不同。一千二管理区宜采用最大引水预案,提高涉禽鸟类的生境适宜性;黄河口管理区宜采用最小水量预案,同时应降低生境干扰以改善栖息地质量;对于大汶流管理区,中等水量对于涉禽类和游禽类的生境都有较大改善。本研究将水文过程与景观过程进行集成,利用情景模拟方法,为湿地恢复决策提供一种新的尝试。
In view of the degradation of wetlands in the Yellow River Delta, three wetland restoration plans were designed. Hydrological model SOBEK and groundwater model Visual Modflow were used to simulate the hydrological process of wetlands under different recharge plans. The hydrological simulation results were integrated with the site conditions of wetlands and the vegetation conditions under the LEDESS framework of landscape decision support model. The wetland restoration Scenario simulation and evaluation. The research shows that for the restoration of wetlands in the Yellow River Delta, according to the difference of wetland conditions in the Yellow River Delta, the recovery targets and the suitable water needed are also different. In the management area of 112 areas, the maximum water diversion plan should be adopted to improve the habitat suitability of Wading birds; the minimum water amount plan should be adopted in the management area of Yellow River Estuary and the habitat disturbance should be reduced to improve the habitat quality; for Dawenli Management District, For the wading and poultry habitat have greatly improved. In this study, hydrological process and landscape process are integrated, and scenario simulation method is used to provide a new attempt for wetland restoration decision-making.