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 -
The concept of field capacity revisited: Defining intrinsic static and dynamic criteria for soil internal drainage dynamics
Year:
2014
Source of publication :
Water Resources Research
Authors :
אסולין, שמואל
;
.
Volume :
50
Co-Authors:
Assouline, S., Department of Environmental Physics, Institute of SoilWater and Environmental Sciences, Volcani Center, Bet Dagan, Israel
Or, D., Department of Environmental Systems Science (D-USYS), Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
Facilitators :
From page:
4787
To page:
4802
(
Total pages:
16
)
Abstract:
Across many soil types and conditions, post wetting soil internal drainage exhibits predictable dynamics that lead to a stable and repeatable hydration state termed "field capacity" (FC). Soil regulation of internal drainage toward FC has long been recognized as producing a useful hydrologic benchmark for modeling and for estimation of plant available soil water. To overcome ambiguities and inconsistencies in various ad hoc definitions of FC, we propose using a soil intrinsic characteristic length (a matric potential value derived from drainable soil pore size distribution) to characterize the loss of hydraulic continuity associated with the attainment of FC. The resulting static criterion for FC was extended to formulate a self-consistent dynamic criterion based on soil internal drainage dynamics. A systematic evaluation of the proposed definitions of FC using numerical simulations and experimental data reveals remarkable consistency and predictability across a wide range of soil types. The new metrics add definitiveness and robustness of this widely used concept with potential expansion to additional agronomic, hydrologic, ecological, and climatic applications. © 2014. American Geophysical Union. All Rights Reserved.
Note:
Related Files :
Available soil waters
drainage
Dynamics
field capacity
matric potential
soil moisture
soil types
Systematic evaluation
עוד תגיות
תוכן קשור
More details
DOI :
10.1002/2014WR015475
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
32000
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:06
Scientific Publication
The concept of field capacity revisited: Defining intrinsic static and dynamic criteria for soil internal drainage dynamics
50
Assouline, S., Department of Environmental Physics, Institute of SoilWater and Environmental Sciences, Volcani Center, Bet Dagan, Israel
Or, D., Department of Environmental Systems Science (D-USYS), Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
The concept of field capacity revisited: Defining intrinsic static and dynamic criteria for soil internal drainage dynamics
Across many soil types and conditions, post wetting soil internal drainage exhibits predictable dynamics that lead to a stable and repeatable hydration state termed "field capacity" (FC). Soil regulation of internal drainage toward FC has long been recognized as producing a useful hydrologic benchmark for modeling and for estimation of plant available soil water. To overcome ambiguities and inconsistencies in various ad hoc definitions of FC, we propose using a soil intrinsic characteristic length (a matric potential value derived from drainable soil pore size distribution) to characterize the loss of hydraulic continuity associated with the attainment of FC. The resulting static criterion for FC was extended to formulate a self-consistent dynamic criterion based on soil internal drainage dynamics. A systematic evaluation of the proposed definitions of FC using numerical simulations and experimental data reveals remarkable consistency and predictability across a wide range of soil types. The new metrics add definitiveness and robustness of this widely used concept with potential expansion to additional agronomic, hydrologic, ecological, and climatic applications. © 2014. American Geophysical Union. All Rights Reserved.
Scientific Publication
You may also be interested in