Natural flood management, land use and climate change trade-offs: the case of Tarland catchment, Scotland

摘要: ABSTRACTA distributed hydrological model (WaSiM-ETH) was applied to a mesoscale catchment investigate natural flood management as nonstructural approach tackle risks from climate change. Peak flows were modelled using projections (UKCP09) combined with afforestation-based land-use change options. A significant increase in peak Afforestation could reduce some of the increased flow, greatest benefit coniferous afforestation, especially replacing lowland farmland. Nevertheless, large-scale woodland expansion required maintain similar present and beneficial effects significantly reduced for larger “winter-type” extreme floods. also low-flow risks. Land-use scenarios showed catchment-scale trade-offs across multiple objectives meant “optimal” risk solutions unlikely, afforestation Hence, structural/nonstructural m...