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Dirk Raes
Katholieke Universiteit Leuven
209Publications
38H-index
18.6kCitations
Publications 209
Newest
Published on Aug 1, 2019in Journal of Hydrology: Regional Studies
Hailemariam Meaza3
Estimated H-index: 3
(UGent: Ghent University),
Amaury Frankl17
Estimated H-index: 17
(UGent: Ghent University)
+ 10 AuthorsMiro Jacob6
Estimated H-index: 6
(UGent: Ghent University)
Abstract Region Ethiopia’s Rift Valley. Focus matching agricultural water demand and supply is a growing policy challenge in drylands. We investigated the water balance components in Raya (3507 km 2 ) and Ashenge (80.5 km 2 ) grabens. The rainfall depth, river discharge, abstraction, climate and soil data (2015–2017) were used to address the research question. New hydrological insights: the average annual rainfall of the graben’s escarpment and its bottom was 806 ± 162 and 508 ± 110 mm, respecti...
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Published on Aug 1, 2017in Environmental Modelling and Software 4.55
Hanne Van Gaelen2
Estimated H-index: 2
(Katholieke Universiteit Leuven),
Eline Vanuytrecht13
Estimated H-index: 13
(Katholieke Universiteit Leuven)
+ 2 AuthorsDirk Raes38
Estimated H-index: 38
(Katholieke Universiteit Leuven)
Abstract While simple crop and hydrological models are limited with respect to the number and accuracy of the processes they incorporate, complex models have high demand for data. Due to the limitations of both categories of models, there is a need for new agro-hydrological models that simulate both crop productivity and water availability in agricultural catchments, with low data and calibration requirements. This study aimed at developing a widely applicable parsimonious agro-hydrological mode...
3 Citations Source Cite
Published on Jun 1, 2017in Gcb Bioenergy 4.85
Joanna A. Horemans4
Estimated H-index: 4
(University of Antwerp),
Hanne Van Gaelen2
Estimated H-index: 2
(Katholieke Universiteit Leuven)
+ 2 AuthorsR. Ceulemans65
Estimated H-index: 65
(University of Antwerp)
We calibrated and evaluated the agricultural model AquaCrop for the simulation of water use and yield of a short rotation coppice (SRC) plantation with poplar (Populus) in East Flanders (Belgium) during the second and the third rotation (first two years only). Differences in crop development and growth during the course of the rotations were taken into account during the model calibration. Overall, the AquaCrop model showed good performance for the daily simulation of soil water content (R² of 0...
6 Citations Source Cite
Published on Mar 1, 2017in Global Change Biology 8.88
David H. Fleisher17
Estimated H-index: 17
(ARS: Agricultural Research Service),
Bruno Condori8
Estimated H-index: 8
(ARS: Agricultural Research Service)
+ 23 AuthorsA.C. Franke5
Estimated H-index: 5
(University of the Free State)
A potato crop multimodel assessment was conducted to quantify variation among models and evaluate responses to climate change. Nine modeling groups simulated agronomic and climatic responses at low-input (Chinoli, Bolivia and Gisozi, Burundi)- and high-input (Jyndevad, Denmark and Washington, United States) management sites. Two calibration stages were explored, partial (P1), where experimental dry matter data were not provided, and full (P2). The median model ensemble response outperformed any ...
30 Citations Source Cite
Published on Mar 1, 2017
Joost Wellens2
Estimated H-index: 2
(University of Liège),
Dirk Raes38
Estimated H-index: 38
,
Bernard Tychon2
Estimated H-index: 2
(University of Liège)
2 Citations Source Cite
Published on Feb 1, 2017in Agricultural Water Management 3.54
Timothy Foster5
Estimated H-index: 5
(University of Manchester),
Nicholas Brozović20
Estimated H-index: 20
(NU: University of Nebraska–Lincoln)
+ 5 AuthorsTheodore C. Hsiao40
Estimated H-index: 40
(UC Davis: University of California, Davis)
Crop simulation models are valuable tools for quantifying crop yield response to water, and for devising strategies to improve agricultural water management. However, applicability of the majority of crop models is limited greatly by a failure to provide open-access to model source code. In this study, we present an open-source version of the FAO AquaCrop model, which simulates efficiently water-limited crop production across diverse environmental and agronomic conditions. Our model, called Aqua...
21 Citations Source Cite
Published on Jan 1, 2017
Hailemariam Meaza Gebregergs , Amaury Frankl17
Estimated H-index: 17
+ 7 AuthorsJan Nyssen45
Estimated H-index: 45
Marginal grabens are the major development corridors in northern Ethiopia. Despite the growing pressure on water resources, the hydrological budget of the grabens is inadequately understood to develop better management options. The study investigates the water balance of the Aba’ala graben (553 km2) along the western margin of the Danakil depression. We established rain gauges, divers, and staff gauges to collect the required data. Climate, crop and soil data were also collected to compute actua...
Published on Aug 1, 2016in The Journal of Agricultural Science 1.33
H. Van Gaelen2
Estimated H-index: 2
(Katholieke Universiteit Leuven),
Nele Delbecque3
Estimated H-index: 3
(Katholieke Universiteit Leuven)
+ 2 AuthorsDirk Raes38
Estimated H-index: 38
(Katholieke Universiteit Leuven)
Weed infestation is a major yield-reducing factor that also decreases crop water productivity. Yet weeds are often neglected in crop productivity simulation studies, because existing empirical equations and mechanistic models are not widely applicable or have a high demand for input data and calibration. For that reason, AquaCrop, a widely applicable crop water productivity model, was expanded with a weed management module which requires only two easily obtainable input variables: (i) relative l...
3 Citations Source Cite
Published on Jun 26, 2016
Bie Gielen1
Estimated H-index: 1
,
Koenraad Van Meerbeek9
Estimated H-index: 9
+ 4 AuthorsBart Muys55
Estimated H-index: 55
Published on Mar 1, 2016in Regional Environmental Change 3.15
Eline Vanuytrecht13
Estimated H-index: 13
(Katholieke Universiteit Leuven),
Dirk Raes38
Estimated H-index: 38
(Katholieke Universiteit Leuven),
Patrick Willems45
Estimated H-index: 45
(Katholieke Universiteit Leuven)
The impact of mid-century climatic changes on crop productivity of winter wheat, maize, potato and sugar beet was assessed for a temperate maritime climate in the Flemish Region, Belgium. Climatic projections of multiple regional and global climate models (RCMs from the EU-ENSEMBLES project and GCMs from the Coupled Model Intercomparison Project phase 3) were stochastically downscaled by the LARS-WG weather generator for use in the crop models AquaCrop and Sirius. Primarily positive effects on m...
12 Citations Source Cite
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