Results 1 to 10 of about 100,657 (258)

Parameterization of Root Water Uptake Models Considering Dynamic Root Distributions and Water Uptake Compensation [PDF]

open access: yesVadose Zone Journal, 2018
The spatiotemporal distribution of root water uptake (RWU) depends on the dynamics of the root distribution and compensatory uptake from wetter regions in the root zone.
Gaochao Cai   +4 more
doaj   +4 more sources

Effect of parameter choice in root water uptake models – the arrangement of root hydraulic properties within the root architecture affects dynamics and efficiency of root water uptake [PDF]

open access: yesHydrology and Earth System Sciences, 2014
Detailed three-dimensional models of root water uptake have become increasingly popular for investigating the process of root water uptake. However, they suffer from a lack of information on important parameters, particularly on the spatial distribution ...
M. Bechmann   +5 more
doaj   +6 more sources

A thermodynamic formulation of root water uptake [PDF]

open access: yesHydrology and Earth System Sciences, 2016
By extracting bound water from the soil and lifting it to the canopy, root systems of vegetation perform work. Here we describe how root water uptake can be evaluated thermodynamically and demonstrate that this evaluation provides additional insights ...
A. Hildebrandt, A. Kleidon, M. Bechmann
doaj   +5 more sources

Evaluation of the applicability of the root water uptake model on alpine meadows and analysis of root water uptake characteristics

open access: yesFrontiers in Earth Science, 2022
It is essential to quantify the rate of root water uptake (RWU) and characterize the variability of RWU, which benefits understanding the water use of alpine meadows and its response to environmental changes.
Bin Deng   +8 more
doaj   +2 more sources

Modeling the influence of rhizodeposits on root water uptake

open access: yesVadose Zone Journal
The chemical compounds that plant roots release into the soil, referred to as rhizodeposits, affect soil hydraulic properties like the surface tension and viscosity of soil water, and the contact angle between menisci and the pore surface.
Andrew Mair   +3 more
doaj   +2 more sources

Mechanistically derived macroscopic root water uptake functions: The α and ω of root water uptake functions

open access: yesVadose Zone Journal
Water uptake by plant roots is an important component of the soil water balance. Predicting to what extent potential transpiration from the canopy, that is, transpiration demand, can be met by supply of water from the soil through the root system is ...
Jan Vanderborght   +5 more
doaj   +4 more sources

From hydraulic root architecture models to macroscopic representations of root hydraulics in soil water flow and land surface models [PDF]

open access: yesHydrology and Earth System Sciences, 2021
Root water uptake is an important process in the terrestrial water cycle. How this process depends on soil water content, root distributions, and root properties is a soil–root hydraulic problem.
J. Vanderborght   +9 more
doaj   +1 more source

The Role of Aquaporins in Root Water Uptake [PDF]

open access: yesAnnals of Botany, 2002
The capacity of roots to take up water is determined in part by the resistance of living tissues to radial water flow. Both the apoplastic and cell-to-cell paths mediate water transport in these tissues but the contribution of cell membranes to the latter path has long been difficult to estimate. Aquaporins are water channel proteins that are expressed
Hélène, Javot, Christophe, Maurel
openaire   +2 more sources

Modelling Water Uptake Provides a New Perspective on Grass and Tree Coexistence. [PDF]

open access: yesPLoS ONE, 2015
Root biomass distributions have long been used to infer patterns of resource uptake. These patterns are used to understand plant growth, plant coexistence and water budgets.
Michael G Mazzacavallo   +1 more
doaj   +1 more source

A model for water uptake by plant roots [PDF]

open access: yesJournal of Theoretical Biology, 2004
We present a model for water uptake by plant roots from unsaturated soil. The model includes the simultaneous flow of water inside the root network and in the soil. It is constructed by considering first the water uptake by a single root, and then using the parameterized results thereby obtained to build a model for water uptake by the developing root ...
Roose, T, Fowler, A
openaire   +4 more sources

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