HYDROLOGIC MODEL FOR DESIGN AND CONSTRUCTED WETLANDS

摘要: The Trinity River Mitigation Bank was proposed to develop and use a mature, contiguous, diverse riparian corridor along the West Fork of near Dallas, Texas, USA. In wetland design, water would be diverted from Walker Creek as necessary maintain function. Therefore, assessment magnitude continuity flow paramount successful operation. Soil Water Assessment (SWAT) model used assess whether sustained (storm base flow) Basin could bottomland ecosystem. For this study, SWAT modified allow ponded within prescribed interact with soil profile shallow aquifer. budget prepared for based on three-step process. First, data required run Creek, including soils, topographic, land-use, daily weather were assembled. Next, validate obtained. Since stream not available at site, nearby watershed similar land topography used. final step, 14 years compared measured balance watershed. results indicate that should or above 85 percent capacity over 60 time. did dry up during entire simulated time period (14 years) reached 40 less than one simulation period. advantages continuous approach in study include (1) validation function (hydroperiod, storage, plant uptake) range climatic conditions (2) ability long-term impact land-use management changes.