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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, ...
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 Universiteit Gent
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 ...
Proportional coefficient method applied to TRMM rainfall data : case study of hydrological simulations of the Hotan River Basin (China) Universiteit Gent
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 Universiteit Gent
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 ...
Effects of land use on annual runoff and soil loss in Europe and the Mediterranean: A meta-analysis of plot data KU Leuven
The largest currently compiled database of plot runoff and soil loss data in Europe and the Mediterranean was analysed to investigate effects of land use on annual soil loss (SL), annual runoff (R) and annual runoff coefficient (RC). This database comprises 227 plot-measuring sites in Europe and the Mediterranean, with SL for 1056 plots (PL) representing 7024 plot-years (PY) and R for 804 PL representing 5327 PY. Despite large data variability, ...
Monitoring Stations for Runoff and Sediment Transport along Gumara River (Tana Basin): Procedures and Preliminary Results KU Leuven
Gumara River, one of the major tributaries of Lake Tana, drains an area of 1768km2. It is within the growth corridor of Lake Tana Basin, where an increasing number of water resource development projects (mainly hydropower and irrigation) take place. Monitoring stations for runoff and sediment have been installed under Wase-Tana Project along Gumara River using automatic water level recorders to produce data of finer resolution (10 minutes ...