In: Journal of Hydrology and Hydromechanics, vol. 63, no. 1
Karsten Schacht - Bernd Marschner
Detaily:
Rok, strany: 2015, 47 - 54
Kľúčové slová:
Hydraulic conductivity; Soil aggregate stability; Irrigation; Treated wastewater; Israel.
URL originálneho zdroja: http://www.ih.savba.sk/jhh
O článku:
The use of treated wastewater (TWW) for agricultural irrigation becomes increasingly important in water
stressed regions like the Middle East for substituting fresh water (FW) resources. Due to elevated salt concentrations and
organic compounds in TWW this practice has potential adverse effects on soil quality, such as the reduction of hydraulic
conductivity (HC) and soil aggregate stability (SAS). To assess the impact of TWW irrigation in comparison to FW irrigation
on HC, in-situ infiltration measurements using mini disk infiltrometer were deployed in four different long-term
experimental orchard test sites in Israel. Topsoil samples (0–10 cm) were collected for analyzing SAS and determination
of selected soil chemical and physical characteristics.
The mean HC values decreased at all TWW sites by 42.9% up to 50.8% compared to FW sites. The SAS was 11.3%
to 32.4% lower at all TWW sites. Soil electrical conductivity (EC) and exchangeable sodium percentage (ESP) were
generally higher at TWW sites. These results indicate the use of TWW for irrigation is a viable, but potentially deleterious
option, as it influences soil physical and chemical properties.
Ako citovať:
ISO 690:
Schacht, K., Marschner, B. 2015. Treated wastewater irrigation effects on soil hydraulic conductivity and
aggregate stability of loamy soils in Israel. In Journal of Hydrology and Hydromechanics, vol. 63, no.1, pp. 47-54. 0042-790X (until 2019) .
APA:
Schacht, K., Marschner, B. (2015). Treated wastewater irrigation effects on soil hydraulic conductivity and
aggregate stability of loamy soils in Israel. Journal of Hydrology and Hydromechanics, 63(1), 47-54. 0042-790X (until 2019) .