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פותח על ידי קלירמאש פתרונות בע"מ -
Effect of exchangeable sodium and phosphogypsum on crust structure - scanning electron microscope observations.
Year:
1984
Authors :
גל, מנחם
;
.
קרן, רמי
;
.
שיינברג, יצחק
;
.
Volume :
48
Co-Authors:
Gal, M., ARO. Volcani Center, Bet Dagan 50250, Israel.
Arcan, L., ARO. Volcani Center, Bet Dagan 50250, Israel.
Shainberg, I., ARO. Volcani Center, Bet Dagan 50250, Israel.
Keren, R., ARO. Volcani Center, Bet Dagan 50250, Israel.
Facilitators :
From page:
872
To page:
878
(
Total pages:
7
)
Abstract:
The effect of soil sodicity and phosphogypsum treatment on the structure of the crust of two soils (sandy loam and clay soil) was studied using a SEM. In soils with no exchangeable sodium, aggregate breakdown and surface compaction by raindrops are the dominant mechanisms for crust formation. In soils with ESP values above 1.5, chemical dispersion of the soil clays (enhanced by the sodicity of the soil, the low electrolyte concentration in the rain, and the stirring effect of the raindrops) and the downward movement of the clays into the 'washed in' layer clogging the pores in this layer were the dominant mechanisms in crust formation. Soils with a 'washed in' layer had a very low infiltration rate. -from Authors
Note:
Related Files :
Microscopic examination
salinity
SODIUM COMPOUNDS - Solubility
Soil aggregates
Soils
SURFACE CRUSTS
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
Language:
אנגלית
Editors' remarks:
ID:
18692
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:23
Scientific Publication
Effect of exchangeable sodium and phosphogypsum on crust structure - scanning electron microscope observations.
48
Gal, M., ARO. Volcani Center, Bet Dagan 50250, Israel.
Arcan, L., ARO. Volcani Center, Bet Dagan 50250, Israel.
Shainberg, I., ARO. Volcani Center, Bet Dagan 50250, Israel.
Keren, R., ARO. Volcani Center, Bet Dagan 50250, Israel.
Effect of exchangeable sodium and phosphogypsum on crust structure - scanning electron microscope observations.
The effect of soil sodicity and phosphogypsum treatment on the structure of the crust of two soils (sandy loam and clay soil) was studied using a SEM. In soils with no exchangeable sodium, aggregate breakdown and surface compaction by raindrops are the dominant mechanisms for crust formation. In soils with ESP values above 1.5, chemical dispersion of the soil clays (enhanced by the sodicity of the soil, the low electrolyte concentration in the rain, and the stirring effect of the raindrops) and the downward movement of the clays into the 'washed in' layer clogging the pores in this layer were the dominant mechanisms in crust formation. Soils with a 'washed in' layer had a very low infiltration rate. -from Authors
Scientific Publication
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