You may take a look at https://www.researchgate.net/publication/307923101_Coupling_hydrologic_and_economic_modeling_for_wetland_management_multi-optimization_in_Tram_Chim_National_Park_Vietnam?ev=prf_pub
If you haven't already, I strongly suggest you start by consulting the literature on water soft paths. Check out the work of David Brooks and Oliver Brandes available through the Polis Water Project and, in particular:
Brooks, D.B., & Brandes, O.M. (2011). Why a Water Soft Path, Why Now and What Then? International Journal of Water Resources Development, 27(2), 315–344.