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Scaling wetland green infrastructure?practices to watersheds using modeling approaches
Citation:
Golden, H., C. Nietch, X. Li, A. Safwat, AND J. Lee. Scaling wetland green infrastructure?practices to watersheds using modeling approaches. The 10th INTECOL International Wetlands Conference, Changshu, CHINA, September 19 - 24, 2016.
Impact/Purpose:
Green infrastructure practices are typically implemented at the plot or local scale. Wetlands in the landscape can serve important functions at these scales and can mediate biogeochemical and hydrological processes, particularly when juxtaposed with low impact development (LID). However, few studies have quantified how wetlands used in GI practices affect hydrological and biogeochemical fluxes at larger spatial scales (i.e. watersheds) and in mixed land cover systems. In this presentation, we explore how watershed models are important tools with which to investigate how localized GI implementation, focusing on wetland water and biogeochemical cycling, affects water quantity and quality at the watershed scale. We discuss approaches for using watershed models to “best” quantify the effect of GI practices at the watershed scale given varied potential model mathematical structures and numerical simulation approaches. A case study watershed in western Ohio, USA, is examined as an exemplar of this discussion and to demonstrate an application of a watershed model to scale GI implementation on the landscape.
Description:
Green infrastructure practices are typically implemented at the plot or local scale. Wetlands in the landscape can serve important functions at these scales and can mediate biogeochemical and hydrological processes, particularly when juxtaposed with low impact development (LID). However, few studies have quantified how wetlands used in GI practices affect hydrological and biogeochemical fluxes at larger spatial scales (i.e. watersheds) and in mixed land cover systems. In this presentation, we explore how watershed models are important tools with which to investigate how localized GI implementation, focusing on wetland water and biogeochemical cycling, affects water quantity and quality at the watershed scale. We discuss approaches for using watershed models to “best” quantify the effect of GI practices at the watershed scale given varied potential model mathematical structures and numerical simulation approaches. A case study watershed in western Ohio, USA, is examined as an exemplar of this discussion and to demonstrate an application of a watershed model to scale GI implementation on the landscape.
