נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Soil water repellency induced by long-term irrigation with treated sewage effluent
Year:
2005
Source of publication :
Journal of Environmental Quality
Authors :
גרבר, אלן
;
.
Volume :
34
Co-Authors:
Wallach, R., Department of Soil and Water Sciences, Faculty of Agricultural, Food, and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Ben-Arie, O., Department of Soil and Water Sciences, Faculty of Agricultural, Food, and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Graber, E.R., Institute of Soil, Water and Environmental Sciences, Volcani Center, Agricultural Research Organization (ARO), Bet Dagan 50250, Israel
Facilitators :
From page:
1910
To page:
1920
(
Total pages:
11
)
Abstract:
This study describes soil water repellency developed under prolonged irrigation with treated sewage effluent in a semiarid environment Soil surface layer (0-5 cm) and soil profile (0-50 cm) transects were sampled at a high resolution at the close of the irrigation season and rainy winter season. Samples from 0- to 5-cm transects were sub-divided into 1-cm slices to obtain fine scale resolution of repelleracy and organic matter distribution. Extreme to severe soil water repellency in the 0- to 5-cm soil surface layer persisted throughout the 2-yr study period in the effluent-irrigated Shamouti orange [Citrus sinensis (L.) Osbeck cv. Shamouti] orchard plot. Nearby Shamouti orange plots irrigated with tap water were either nonrepellent or only somewhat repellent. Repeilency was very variable spatially and with depth, appearing in vertically oriented "repellency tongues." Temporal and spatial variability in repellency in the uppermost 5-cm soil surface layer was not related to seasonality, soil moisture content, or soil organic matter content. Nonunifoon distribution of soil moisture and fingered flow were observed in the soil profile after both seasons, demonstrating that the repellent layer had a persistent effect on water flow in the soil profile. A lack of correlation between bulk density and volumetric water content in the soil profile demonstrates that the observed non-uniform spatial distribution of moisture results from preferential flow and not heterogeneity in soil properties. Soil water repellency can adversely affect agricultural production, cause contamination of underlying ground water resources, and result in excessive runoff and soil erosion. © ASA, CSSA, SSSA.
Note:
Related Files :
climatology
Israel
meteorology
rain
sewage
soil
soil erosion
water
עוד תגיות
תוכן קשור
More details
DOI :
10.2134/jeq2005.0073
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
19197
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:27
Scientific Publication
Soil water repellency induced by long-term irrigation with treated sewage effluent
34
Wallach, R., Department of Soil and Water Sciences, Faculty of Agricultural, Food, and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Ben-Arie, O., Department of Soil and Water Sciences, Faculty of Agricultural, Food, and Environmental Quality Sciences, Hebrew University of Jerusalem, Rehovot 76100, Israel
Graber, E.R., Institute of Soil, Water and Environmental Sciences, Volcani Center, Agricultural Research Organization (ARO), Bet Dagan 50250, Israel
Soil water repellency induced by long-term irrigation with treated sewage effluent
This study describes soil water repellency developed under prolonged irrigation with treated sewage effluent in a semiarid environment Soil surface layer (0-5 cm) and soil profile (0-50 cm) transects were sampled at a high resolution at the close of the irrigation season and rainy winter season. Samples from 0- to 5-cm transects were sub-divided into 1-cm slices to obtain fine scale resolution of repelleracy and organic matter distribution. Extreme to severe soil water repellency in the 0- to 5-cm soil surface layer persisted throughout the 2-yr study period in the effluent-irrigated Shamouti orange [Citrus sinensis (L.) Osbeck cv. Shamouti] orchard plot. Nearby Shamouti orange plots irrigated with tap water were either nonrepellent or only somewhat repellent. Repeilency was very variable spatially and with depth, appearing in vertically oriented "repellency tongues." Temporal and spatial variability in repellency in the uppermost 5-cm soil surface layer was not related to seasonality, soil moisture content, or soil organic matter content. Nonunifoon distribution of soil moisture and fingered flow were observed in the soil profile after both seasons, demonstrating that the repellent layer had a persistent effect on water flow in the soil profile. A lack of correlation between bulk density and volumetric water content in the soil profile demonstrates that the observed non-uniform spatial distribution of moisture results from preferential flow and not heterogeneity in soil properties. Soil water repellency can adversely affect agricultural production, cause contamination of underlying ground water resources, and result in excessive runoff and soil erosion. © ASA, CSSA, SSSA.
Scientific Publication
You may also be interested in