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Efficiency assessment of runoff harvesting techniques using a 3D coupled surface-subsurface hydrological model

Koen Verbist UGent, Wim Cornelis UGent, Robert G McLaren, Donald Gabriëls UGent and Guido Soto (2012) 19th World congress of soil science : soil solutions for a changing world : proceedings. p.1-4
abstract
In arid and semi-arid zones runoff harvesting techniques are often applied to increase the water retention and infiltration on steep slopes. Additionally, they act as an erosion control measure to reduce land degradation hazards. Both in literature and in the field, a large variety of runoff collecting systems are found, as well as large variations in design and dimensions. Therefore, detailed measurements were performed on a semi-arid slope in central Chile to allow identification of the effect of a simple water harvesting technique on soil water availability. For this purpose, twenty two TDR-probes were installed and were monitored continuously during and after a simulated rainfall event. These data were used to calibrate the 3D distributed flow model HydroGeoSphere, to assess the runoff components and soil water retention as influenced by the water harvesting technique, both under simulated and natural rainfall conditions. Preliminary results show important design flaws that do not take into account local soil and climatic conditions adequately, resulting in a low water harvesting efficiency. The proposed methodology can be used to improve the design of water harvesting techniques, to optimally apply scarce financial sources in order to obtain maximal efficiency from runoff harvesting techniques in semi-arid regions.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
Arid and semi-arid zones, hydrological modelling, water harvesting techniques, soil moisture content
in
19th World congress of soil science : soil solutions for a changing world : proceedings
editor
RJ Gilkes and Nattaporn Prakougkep
pages
1 - 4
publisher
International Union of Soil Sciences (IUSS)
conference name
19th World congress of Soil Science : Soil solutions for a changing world
conference location
Brisbane, QLD, Australia
conference start
2012-08-01
conference end
2012-08-06
ISBN
9780646537832
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2119613
handle
http://hdl.handle.net/1854/LU-2119613
date created
2012-05-30 09:43:15
date last changed
2012-06-04 15:43:29
@inproceedings{2119613,
  abstract     = {In arid and semi-arid zones runoff harvesting techniques are often applied to increase the water retention and infiltration on steep slopes. Additionally, they act as an erosion control measure to reduce land degradation hazards. Both in literature and in the field, a large variety of runoff collecting systems are found, as well as large variations in design and dimensions. Therefore, detailed measurements were performed on a semi-arid slope in central Chile to allow identification of the effect of a simple water harvesting technique on soil water availability. For this purpose, twenty two TDR-probes were installed and were monitored continuously during and after a simulated rainfall event. These data were used to calibrate the 3D distributed flow model HydroGeoSphere, to assess the runoff components and soil water retention as influenced by the water harvesting technique, both under simulated and natural rainfall conditions.
Preliminary results show important design flaws that do not take into account local soil and climatic conditions adequately, resulting in a low water harvesting efficiency.
The proposed methodology can be used to improve the design of water harvesting techniques, to optimally apply scarce financial sources in order to obtain maximal efficiency from runoff harvesting techniques in semi-arid regions.},
  author       = {Verbist, Koen and Cornelis, Wim and McLaren, Robert G and Gabri{\"e}ls, Donald and Soto, Guido},
  booktitle    = {19th World congress of soil science : soil solutions for a changing world : proceedings},
  editor       = {Gilkes, RJ and Prakougkep, Nattaporn},
  isbn         = {9780646537832},
  keyword      = {Arid and semi-arid zones,hydrological modelling,water harvesting techniques,soil moisture content},
  language     = {eng},
  location     = {Brisbane, QLD, Australia},
  pages        = {1--4},
  publisher    = {International Union of Soil Sciences (IUSS)},
  title        = {Efficiency assessment of runoff harvesting techniques using a 3D coupled surface-subsurface hydrological model},
  year         = {2012},
}

Chicago
Verbist, Koen, Wim Cornelis, Robert G McLaren, Donald Gabriëls, and Guido Soto. 2012. “Efficiency Assessment of Runoff Harvesting Techniques Using a 3D Coupled Surface-subsurface Hydrological Model.” In 19th World Congress of Soil Science : Soil Solutions for a Changing World : Proceedings, ed. RJ Gilkes and Nattaporn Prakougkep, 1–4. International Union of Soil Sciences (IUSS).
APA
Verbist, K., Cornelis, W., McLaren, R. G., Gabriëls, D., & Soto, G. (2012). Efficiency assessment of runoff harvesting techniques using a 3D coupled surface-subsurface hydrological model. In R. Gilkes & N. Prakougkep (Eds.), 19th World congress of soil science : soil solutions for a changing world : proceedings (pp. 1–4). Presented at the 19th World congress of Soil Science : Soil solutions for a changing world, International Union of Soil Sciences (IUSS).
Vancouver
1.
Verbist K, Cornelis W, McLaren RG, Gabriëls D, Soto G. Efficiency assessment of runoff harvesting techniques using a 3D coupled surface-subsurface hydrological model. In: Gilkes R, Prakougkep N, editors. 19th World congress of soil science : soil solutions for a changing world : proceedings. International Union of Soil Sciences (IUSS); 2012. p. 1–4.
MLA
Verbist, Koen, Wim Cornelis, Robert G McLaren, et al. “Efficiency Assessment of Runoff Harvesting Techniques Using a 3D Coupled Surface-subsurface Hydrological Model.” 19th World Congress of Soil Science : Soil Solutions for a Changing World : Proceedings. Ed. RJ Gilkes & Nattaporn Prakougkep. International Union of Soil Sciences (IUSS), 2012. 1–4. Print.