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אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Rain energy and soil amendments effects on infiltration and erosion of three different soil types
Year:
1991
Authors :
בן-חור, מני
;
.
גל, מנחם
;
.
לוי, גיא
;
.
לוין, י'
;
.
Volume :
29
Co-Authors:
Levin, J., Institute of Soils and Water, ARO, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Ben-Hur, M., Institute of Soils and Water, ARO, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Gal, M., Institute of Soils and Water, ARO, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Ievy, G.J., Institute of Soils and Water, ARO, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Facilitators :
From page:
455
To page:
465
(
Total pages:
11
)
Abstract:
The effect of rain kinetic energy and soil amendments on infiltration and erosion from three Israeli soils was studied using a drip-type simulator. The soil samples were from the top layer (0.250 mm depth) of cultivated fields differing in their texture, specific surface area and lime content. Three kinetic energies of raindrops were obtained by varying heights of fall (h = 0.4, 1.0 and l.6m) of 3 mm diameter drops. The soil types studied were Typic Chromoxerert, Typic Rhodoxeralf and Calcic Haploxeralf. Soil amendments were phosphogypsum (PG) and a combined application of an anionic polyacrylamide (PAM) with PG. An increase in the impact energy of the raindrops reduced depth of rain before ponding, final infiltration rate (FIR), cumulative infiltration (i.e. infiltration parameters) and increased soil erosion. The addition of PAM+PG to the soil surface significantly increased the infiltration parameters and reduced erosion compared with the PG and control treatments. The Typic Chromoxerert was the least susceptible of the three soils to sealing, probably because of its high smectitic clay content, high specific surface area and high CaCO3content which stabilize soil structure. The Typic Rhodoxeralf with the lowest specific surface area was the most susceptible to clay dispersion, and seal formation. Relative to the Typic Chromoxerert and the Typic Rhodoxeralf, the Calcic Haploxeralf was intermediate in its susceptibility to seal formation. © 1991 CSIRO. All rights reserved.
Note:
Related Files :
Erosion
Infiltration
Israel
Ponding
rain
raindrop
Rain energy
Seal formation
soil
soil amendment
soil erosion
soil types
עוד תגיות
תוכן קשור
More details
DOI :
10.1071/SR9910455
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
21607
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:45
Scientific Publication
Rain energy and soil amendments effects on infiltration and erosion of three different soil types
29
Levin, J., Institute of Soils and Water, ARO, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Ben-Hur, M., Institute of Soils and Water, ARO, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Gal, M., Institute of Soils and Water, ARO, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Ievy, G.J., Institute of Soils and Water, ARO, The Volcani Center, P.O. Box 6, Bet Dagan, 50250, Israel
Rain energy and soil amendments effects on infiltration and erosion of three different soil types
The effect of rain kinetic energy and soil amendments on infiltration and erosion from three Israeli soils was studied using a drip-type simulator. The soil samples were from the top layer (0.250 mm depth) of cultivated fields differing in their texture, specific surface area and lime content. Three kinetic energies of raindrops were obtained by varying heights of fall (h = 0.4, 1.0 and l.6m) of 3 mm diameter drops. The soil types studied were Typic Chromoxerert, Typic Rhodoxeralf and Calcic Haploxeralf. Soil amendments were phosphogypsum (PG) and a combined application of an anionic polyacrylamide (PAM) with PG. An increase in the impact energy of the raindrops reduced depth of rain before ponding, final infiltration rate (FIR), cumulative infiltration (i.e. infiltration parameters) and increased soil erosion. The addition of PAM+PG to the soil surface significantly increased the infiltration parameters and reduced erosion compared with the PG and control treatments. The Typic Chromoxerert was the least susceptible of the three soils to sealing, probably because of its high smectitic clay content, high specific surface area and high CaCO3content which stabilize soil structure. The Typic Rhodoxeralf with the lowest specific surface area was the most susceptible to clay dispersion, and seal formation. Relative to the Typic Chromoxerert and the Typic Rhodoxeralf, the Calcic Haploxeralf was intermediate in its susceptibility to seal formation. © 1991 CSIRO. All rights reserved.
Scientific Publication
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