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Rain water runoff from porous building facades:implementation and application of a first-order runoff model coupled to a HAM model KU Leuven
Wind-driven rain (WDR) is one of the most important moisture sources for a building facade. Therefore, a reliable prediction of WDR loads is a prerequisite to assess the durability of building facade components. However, current state of the art Heat-Air-Moisture (HAM) models that are used to assess the moisture behaviour of building facades are still based on several simplifications. Important phenomena of WDR such as raindrop impact, ...
Proportional coefficient method applied to TRMM rainfall data : case study of hydrological simulations of the Hotan River Basin (China) Ghent University
Impact of draining hilly lands on runoff and on-site erosion: a case study from humid Ethiopia Vrije Universiteit Brussel
The use of drainage ditches on farmland has an impact on erosion processes both on-site and off-site, though their environmental impacts are not unequivocal. Here we study the runoff response and related rill erosion after installing drainage ditches and assess the effects of stone bunds in north Ethiopia. Three different land management systems were studied in 10 cropland catchments around Wanzaye during the rainy season of 2013: (1) the ...
Does the effectiveness of soil and water conservation techniques in reducing runoff and soil loss change over time?: a case study from the semi-arid Ethiopian highlands Ghent University
Soil erosion by water is the most critical problem to be solved for a sustainable agricultural development in the north Ethiopian highlands. In Tigray region soil and water conservation (SWC) programs have started two decades ago under the umbrella of food for work program. Several studies were then conducted and these demonstrated that SWC reduces soil erosion. However the effectiveness and temporal evolution of the effectiveness of major SWC ...
Scale effects of runoff generation under reduced and conventional tillage KU Leuven
© 2018 Elsevier B.V. Review studies indicate that conservation tillage effectively reduces runoff generation measured on large plots, but less so on smaller plots. These tillage and scale effects have never been measured in a single study for temperate mechanized agriculture. With the objective to study how runoff production changes with scale as influenced by tillage we set up rainfall-runoff plots of 5 m 2 , 30 m 2 and 180 m 2 size, on a field ...
Parameterizing a coupled surface-subsurface three-dimensional soil hydrological model to evaluate the efficiency of a runoff water harvesting technique Ghent University
Impact of conservation agriculture on catchment runoff and soil loss under changing climate conditions in May Zeg-zeg (Ethiopia) KU Leuven Ghent University
This study evaluates the practice of conservation agriculture (CA) in the May Zeg-zeg catchment (MZZ; 187 ha) in the North Ethiopian Highlands as a soil management technique for reducing soil loss and runoff, and assesses the consequences of future large-scale implementation on soil and hydrology at catchment-level. The study of such practice is important especially under conditions of climate change, since EdGCM (Educational Global Climate ...
Evolution of the effectiveness of soil and Water Conservation Techniques in reducing runoff and soil loss in semi-arid Ethiopian highlands over three years KU Leuven
Sustainable agricultural development in the Ethiopian highlands has been constrained due to severe soil erosion by water. In order to fight ongoing land degradation and desertification in Tigray, Soil and Water Conservation Techniques (SWCT) have been installed widely since 1980’s. Introduced SWCTs have contributed to sustainable agro-ecosystems functionality, improved socioeconomic and livelihood conditions of farming communities. However, ...
Effects of land use, slope gradient and soil and water conservation structures, on runoff and soil loss in semi-arid northern Ethiopia KU Leuven Ghent University
Land degradation and recurrent drought are the major threats to rain-fed agriculture in the semi-arid Ethiopian highlands. Water harvesting has become a priority in the Tigray region since 1990. However, the success of water harvesting in reservoirs is limited due to reduced inflow. The aim of this study was to investigate the effects of typical land-use types, slope gradients, and different soil and water conservation (SWC) structures on runoff ...