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פותח על ידי קלירמאש פתרונות בע"מ -
Effects of long-term irrigation with treated wastewater on the hydraulic properties of a clayey soil
Year:
2011
Source of publication :
Water Resources Research
Authors :
אסולין, שמואל
;
.
נרקיס, כפיר
;
.
Volume :
47
Co-Authors:
Assouline, S., Department of Environmental Physics and Irrigation, Institute of Soil, Water and Environmental Sciences, A.R.O. Volcani Center, Israel
Narkis, K., Department of Environmental Physics and Irrigation, Institute of Soil, Water and Environmental Sciences, A.R.O. Volcani Center, Israel
Facilitators :
From page:
To page:
(
Total pages:
1
)
Abstract:
The increasing demand for freshwater (FW) for domestic use turns treated wastewater (WW) into an attractive source of water for irrigated agriculture. The main goal of this study was to evaluate the impact of 15 yrs of irrigation with WW on hydraulic properties and flow processes in a clayey soil, compared to FW use. It also quantitatively addressed the distribution with depth along the soil profile of that impact on soil hydraulic properties. Standard methods used in soil physics at the laboratory scale, and numerical solutions of the flow equations on the basis of HYDRUS, were applied to define fundamental soil hydraulic properties of disturbed soil samples from 0-20, 20-40, and 40-60 cm layers in the root zone. Results showed that saturated hydraulic conductivity, sorptivity, and infiltration rates are consistently lower in the WW irrigated soil samples at all depths. Water retention and hydraulic conductivity functions were affected by the use of WW, leading to a smaller, simulated-wetted volume below a dripper for the WW-irrigated soil case. These results illustrate the combined and complex effect of WW use on soil-exchangeable sodium percentage, and suggest changes in contact angle and pore size distribution. They also suggest that WW application will affect differently different zones in the soil profile, depending on irrigation management parameters and plant uptake characteristics. Copyright 2011 by the American Geophysical Union.
Note:
Related Files :
clayey soils
irrigation
rhizosphere
size distribution
soil pollution
soil surveys
Wastewater
wastewater treatment
עוד תגיות
תוכן קשור
More details
DOI :
10.1029/2011WR010498
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
22257
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:50
You may also be interested in
Scientific Publication
Effects of long-term irrigation with treated wastewater on the hydraulic properties of a clayey soil
47
Assouline, S., Department of Environmental Physics and Irrigation, Institute of Soil, Water and Environmental Sciences, A.R.O. Volcani Center, Israel
Narkis, K., Department of Environmental Physics and Irrigation, Institute of Soil, Water and Environmental Sciences, A.R.O. Volcani Center, Israel
Effects of long-term irrigation with treated wastewater on the hydraulic properties of a clayey soil
The increasing demand for freshwater (FW) for domestic use turns treated wastewater (WW) into an attractive source of water for irrigated agriculture. The main goal of this study was to evaluate the impact of 15 yrs of irrigation with WW on hydraulic properties and flow processes in a clayey soil, compared to FW use. It also quantitatively addressed the distribution with depth along the soil profile of that impact on soil hydraulic properties. Standard methods used in soil physics at the laboratory scale, and numerical solutions of the flow equations on the basis of HYDRUS, were applied to define fundamental soil hydraulic properties of disturbed soil samples from 0-20, 20-40, and 40-60 cm layers in the root zone. Results showed that saturated hydraulic conductivity, sorptivity, and infiltration rates are consistently lower in the WW irrigated soil samples at all depths. Water retention and hydraulic conductivity functions were affected by the use of WW, leading to a smaller, simulated-wetted volume below a dripper for the WW-irrigated soil case. These results illustrate the combined and complex effect of WW use on soil-exchangeable sodium percentage, and suggest changes in contact angle and pore size distribution. They also suggest that WW application will affect differently different zones in the soil profile, depending on irrigation management parameters and plant uptake characteristics. Copyright 2011 by the American Geophysical Union.
Scientific Publication
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