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The Mara River catchment is the dry weather refuge for more than one million migrating wildebeest and zebras of the Serengeti ecosystem. The river flow is affected by developments in Kenya, including deforestation and water diversion for irrigation and the proposed Ewaso Ng’iro (South) Hydropower Project. An ecohydrology model was used to predict the likely impact of these developments on the Serengeti...
Under arid (dryland) conditions where the usual rain amounts fall short of the moisture deficit in the surface layers, the occurrence of surface flows is a necessary pre-requisite for the occurrence of groundwater recharge at selected infiltration sites. These surface flows at the same time nourish a variety of plants and biota along the flowpaths, which in turn affect both the quality and quantity...
Ecohydrology is more than just hydrology and ecology combined. It is functional to its best only, if science, engineering and construction, public administration and political decision assist each other in an integrated scheme and on a common scale. The UNESCO Biosphere Reserve “Lobau”, part of the Danube National Park today, is dependant on all four aspects for its sustained existence. The integrated...
There have been no ubiquitous, and unanimously accepted, definitions of the notions of ecohydrology and sustainable development. Aside from the interpretation by the UNESCO IHP-V Projects 2.3/2.4, there exist other ways, in which the terms “ecohydrology” and “hydroecology” are understood. Also several competing definitions of the notion “sustainable development” are available. Yet, a robust finding,...
Lowland rivers in industrial countries such as the UK are seriously impacted by phosphorus from a variety of sources. Point sources include numerous sewage-treatment works; diffuse sources include a full range of agricultural activities from fertiliser application to intensive poultry and stock rearing. The scientific consensus is that the concentration of phosphorus is an important measure of eutrophication...
In the Netherlands hydrological measures are taken to raise the groundwater level in nature reserves that are suffering from groundwater levels that are to low, i.e. from ‘desiccation’. These measures often lead to wet damage to agriculture in adjacent areas. There is, however, a lack of insight into these costs in relation to the benefits to nature. In this study a simple model prototype is presented...
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