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Map showing the location of the two pilot areas: Szamos-Kraszna Interfluve (right) and The Danube-Tisza Interfluve (left)
Source publication
![Figure 3. Durability map of the water coverage [days in a year] for the...](profile/Zsolt-Kozma/publication/331327353/figure/fig3/AS:730196533583874@1551103828227/Durability-map-of-the-water-coverage-days-in-a-year-for-the-present-scenario-with_Q320.jpg)
Application of WateRisk Integrated Hydrologic Model (WR IHM) on two pilot areas (PA) is introduced. Inland excess water (quite similar hydrological conditions to wetlands) and drought have been primarily focused on. The developed WR IHM proved to be able to describe complex hydrologic-hydrodynamic processes simultaneously by coupled surface-subsurf...
Context in source publication
Context 1
... model has been tested on a few pilot areas (PA-s), focusing on different water management problems. Two of them are discussed in this present paper (Figure 1.). The excess water issue has been most thoroughly studied on the Szamos-Kraszna Interfluve catchment in north-eastern Hungary, a site that is frequently hit by the phenomena. ...
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Citations
In many years excess water inundations generate a major obstacle to farming in the lowland part of Hungary, including the Marosszög area. Diverting water to large distances requires an infrastructure that is costly to develop and maintain. Alternatively, low-lying local land segments could be withdrawn from cultivation and utilized to collect the surplus water. The Ecological Focus Area (EFA) requirement of the EU points to the same direction: it requires that 5% of arable land is converted to other, ecologically more beneficial uses. During the research project it was tested if it is feasible to apply a novel economic policy instrument, an auction to trade land use change obligations, to achieve the EFA requirement in a cost effective way through the cooperation of farmers, while also creating a practical solution to manage the seasonal surplus water cover on land. The research was carried out in an interdisciplinary way: a dynamically coupled fully integrated hydrological model, including surface and subsurface modules, was applied by engineers to better understand the interconnections of land use, local hydrology and the role of the water diversion infrastructure; while a pilot auction exercise was conducted by economists with the participation of farmers to understand if cost reductions can be achieved through cooperation, as opposed to individual fulfilment of EFA obligations. The analysis also revealed which segments of the water diversion network are economic to maintain. It was confirmed that it is possible to improve local water management and satisfy the EFA requirements at a reduced cost if appropriate economic incentives are applied to trigger the cooperation of farmers.
Inland excess water hazard was regionalized and digitally mapped using auxiliary spatial
environmental information for a county in Eastern Hungary. Quantified parameters
representing the effect of soil, geology, groundwater, land use and hydrometeorology on the
formulation of inland excess water were defined and spatially explicitly derived. The
complex role of relief was characterized using multiple derivatives computed from a DEM.
Legacy maps displaying inland excess water events were used as a reference dataset.
Regression kriging was applied for spatial inference with the correlation between
environmental factors and inundation determined using multiple linear regressions. A
stochastic factor derived through kriging the residual was added to the regression results,
thus producing the final inundation hazard map. This may be of use for numerous landrelated
activities.
