root water uptake
Using measured soil water contents to estimate evapotranspiration and root water uptake profiles – a comparative study
... soil water rela- tions, and thus ecosystem functioning, requires information about root water ...plex water balance methods to estimate sink term patterns and evapotranspiration directly from ...
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Spatially resolved root water uptake determination using a precise soil water sensor
... proportionally to the plant transpiration rate, or plant-driven root water uptake distribution by 461. layer-wise fitting soil water depletion rate data to Eq.[2] using total [r] ...
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Implementing small scale processes at the soil plant interface – the role of root architectures for calculating root water uptake profiles
... plant water uptake is gradient driven by the difference be- tween soil water potential and atmospheric ...of water potentials from the leaves (stomata control) over the trunks to the stem and ...
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Modelling soil water dynamics and root water uptake for apple trees under water storage pit irrigation
... Abstract: Water storage pit irrigation is a new method suitable for apple ...as water saving, water retention and drought ...soil water movement and root water uptake is ...
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Benchmarking test of empirical root water uptake models
... describing root water uptake (RWU) are an important tool for the prediction of RWU and crop transpiration, but the hydraulic parameters in- volved are hardly ever available, making them less ...
21
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
... maximum uptake at each location of the root ...how uptake moves evenly away from the collar in the young root system as expected from the simple model (see ...geneous root systems the ...
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Mapping root water uptake stress and carrying capacity using satellite observed soil moisture data
... Soil moisture is inhomogeneous over an area and can change rapidly in time due to atmospheric forcings (e.g. rainfall and evapotranspiration) and irrigation. Therefore fine resolution spatial and temporal soil moisture ...
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A thermodynamic formulation of root water uptake
... soil water contents (as reflected in the coefficient of ...initial water contents, root conductivities, and root water uptake are the same in all ...soil water content and ...
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Linear root water uptake by vegetation
... simplified water-uptake model that uses generalizations from measured soil water content changes to predict root-water- ...of water within the root network itself as well ...
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A simple three dimensional macroscopic root water uptake model based on the hydraulic architecture approach
... of water flow, from the soil-root interfaces to the plant collar, inside the three-dimensional root system hy- draulic architecture (HA) whose segments hydraulic prop- erties can be defined ...
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A Numerical Method for Time-Dependent Infiltration from Periodic Trapezoidal Channels with Different Types of Root-Water Uptake
... time-dependent water infiltration problem in homogeneous soil with water absorption is ...different root distributions are incorporated into the ...
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Quantification of root water uptake in soil using X ray Computed Tomography and image based modelling
... Three dimensional quantification of soil hydraulic properties using X-ray Computed Tomography and image based modelling Water Resources Research 512 10061022... Quantifying the impact of[r] ...
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Simultaneous monitoring of electrical capacitance and water uptake activity of plant root system
... of root water uptake intensity (in a volume per time unit) is difficult to calculate directly from the measured root EC, even if the mathematical relationship between root EC and ...
5
Ideas and perspectives: Tracing terrestrial ecosystem water fluxes using hydrogen and oxygen stable isotopes – challenges and opportunities from an interdisciplinary perspective
... analysing root water uptake ...ered water sources in the soil is high and closely reflects the vertical distribution of the soil-water isotopic ...inferring root water ...
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Determination of Soil Water Stress Coefficient by different Methods for Computing Crop Transpiration Under Bed Planted Pigeon Pea
... cumulative root water uptake (CRWU) values of CT ...soil water retention in the root ...soil water storage capacity in above CA ...of water balance equation showed a ...
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Dominant controls of transpiration along a hillslope transect inferred from ecohydrological measurements and thermodynamic limits
... We test these hypotheses with data of a measurement setup consisting of five sites along a valley cross section in Lux- embourg. Both hillslopes are covered by forest dominated by European beech (Fagus sylvatica L.). Two ...
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The holistic rhizosphere: integrating zones, processes, and semantics in the soil influenced by roots
... 2006. Water uptake by plant roots: II - Modelling of water transfer in the soil root-system with explicit account of flow within the root system - Comparison with ...of root ...
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Analysis of Soil Water Response to Grass Transpiration
... the water extraction by plant roots was published by GARD- NER (1960), who presented a microscopic model of individual rootlet ...the root system and its development in time are usually unknown, using a ...
14
Root growth, water uptake, and sap flow of winter wheat in response to different soil water conditions
... much water can be taken up by roots and how this depends on the root and water distributions in the root zone are important questions that need to be answered to describe water fluxes ...
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Simple physics based models of compensatory plant water uptake: concepts and eco hydrological consequences
... compensatory water uptake will introduce error and bias into predictions of eco-hydrological models, both at local scales, for example in relation to site factors such as water table depth and also ...
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