This HTML5 document contains 56 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
dctermshttp://purl.org/dc/terms/
n10http://localhost/temp/predkladatel/
n17http://linked.opendata.cz/resource/domain/vavai/projekt/
n8http://linked.opendata.cz/resource/domain/vavai/riv/tvurce/
n15http://linked.opendata.cz/resource/domain/vavai/subjekt/
n3http://linked.opendata.cz/ontology/domain/vavai/
shttp://schema.org/
skoshttp://www.w3.org/2004/02/skos/core#
n5http://linked.opendata.cz/ontology/domain/vavai/riv/
n13http://bibframe.org/vocab/
n2http://linked.opendata.cz/resource/domain/vavai/vysledek/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n18http://linked.opendata.cz/resource/domain/vavai/vysledek/RIV%2F68407700%3A21110%2F13%3A00201822%21RIV14-GA0-21110___/
n6http://linked.opendata.cz/ontology/domain/vavai/riv/klicoveSlovo/
n19http://linked.opendata.cz/ontology/domain/vavai/riv/duvernostUdaju/
xsdhhttp://www.w3.org/2001/XMLSchema#
n14http://linked.opendata.cz/ontology/domain/vavai/riv/jazykVysledku/
n7http://linked.opendata.cz/ontology/domain/vavai/riv/aktivita/
n20http://linked.opendata.cz/ontology/domain/vavai/riv/druhVysledku/
n16http://linked.opendata.cz/ontology/domain/vavai/riv/obor/
n11http://reference.data.gov.uk/id/gregorian-year/

Statements

Subject Item
n2:RIV%2F68407700%3A21110%2F13%3A00201822%21RIV14-GA0-21110___
rdf:type
n3:Vysledek skos:Concept
dcterms:description
One of the principal components of mass exchange within the soil-plant-atmosphere system is soil water extraction by plant roots. Adequate evaluation of water extraction is a prerequisite for correct predictions of plant transpiration and soil water distribution in the root zone. The main objective of the present study is to contribute to the development of sufficiently realistic, yet algorithmically simple models of water exchange between soil and plant roots applicable for numerical simulation of soil water responses to atmospheric forcing. In our case, a simple macroscopic, vertically distributed plant root water uptake approximation based on a traditional water-potential-gradient (WPG) formulation was adopted and implemented in a one-dimensional dual-continuum model of soil water flow based on the Richards’ equation. This combined model was used to simulate soil water movement at a forested site. The results were compared with observations (sap flow, soil water pressure, and soil water content) as well as with simulations produced using the standard semi-empirical model of Feddes. Principal aspects of the WPG prediction, such as root-mediated soil water redistribution, compensation for local water scarcity, and transpiration reduction, are exposed and discussed. One of the principal components of mass exchange within the soil-plant-atmosphere system is soil water extraction by plant roots. Adequate evaluation of water extraction is a prerequisite for correct predictions of plant transpiration and soil water distribution in the root zone. The main objective of the present study is to contribute to the development of sufficiently realistic, yet algorithmically simple models of water exchange between soil and plant roots applicable for numerical simulation of soil water responses to atmospheric forcing. In our case, a simple macroscopic, vertically distributed plant root water uptake approximation based on a traditional water-potential-gradient (WPG) formulation was adopted and implemented in a one-dimensional dual-continuum model of soil water flow based on the Richards’ equation. This combined model was used to simulate soil water movement at a forested site. The results were compared with observations (sap flow, soil water pressure, and soil water content) as well as with simulations produced using the standard semi-empirical model of Feddes. Principal aspects of the WPG prediction, such as root-mediated soil water redistribution, compensation for local water scarcity, and transpiration reduction, are exposed and discussed.
dcterms:title
Macroscopic Modeling of Plant Water Uptake in a Forest Stand Involving Root-mediated Soil Water Redistribution Macroscopic Modeling of Plant Water Uptake in a Forest Stand Involving Root-mediated Soil Water Redistribution
skos:prefLabel
Macroscopic Modeling of Plant Water Uptake in a Forest Stand Involving Root-mediated Soil Water Redistribution Macroscopic Modeling of Plant Water Uptake in a Forest Stand Involving Root-mediated Soil Water Redistribution
skos:notation
RIV/68407700:21110/13:00201822!RIV14-GA0-21110___
n3:predkladatel
n15:orjk%3A21110
n5:aktivita
n7:I n7:P
n5:aktivity
I, P(GA205/08/1174)
n5:cisloPeriodika
1
n5:dodaniDat
n11:2014
n5:domaciTvurceVysledku
n8:9006354 n8:2289016 n8:5672775 n8:1272888
n5:druhVysledku
n20:J
n5:duvernostUdaju
n19:S
n5:entitaPredkladatele
n18:predkladatel
n5:idSjednocenehoVysledku
85670
n5:idVysledku
RIV/68407700:21110/13:00201822
n5:jazykVysledku
n14:eng
n5:klicovaSlova
Root water uptake; Soil water flow; Plant transpiration; Richards’ equation; Sink term; Root length density; Root radial hydraulic resistance; Root water potential; Compensation mechanism; Hydraulic lift; Nightly redistribution
n5:klicoveSlovo
n6:Hydraulic%20lift n6:Nightly%20redistribution n6:Plant%20transpiration n6:Sink%20term n6:Soil%20water%20flow n6:Richards%E2%80%99%20equation n6:Root%20length%20density n6:Root%20radial%20hydraulic%20resistance n6:Root%20water%20potential n6:Root%20water%20uptake n6:Compensation%20mechanism
n5:kodStatuVydavatele
US - Spojené státy americké
n5:kontrolniKodProRIV
[01FC84BE7985]
n5:nazevZdroje
Vadose Zone Journal
n5:obor
n16:DA
n5:pocetDomacichTvurcuVysledku
4
n5:pocetTvurcuVysledku
5
n5:projekt
n17:GA205%2F08%2F1174
n5:rokUplatneniVysledku
n11:2013
n5:svazekPeriodika
12
n5:tvurceVysledku
Tesař, M. Votrubová, Jana Vogel, Tomáš Dohnal, Michal Dušek, Jaromír
n5:wos
000317713300036
s:issn
1539-1663
s:numberOfPages
12
n13:doi
10.2136/vzj2012.0154
n10:organizacniJednotka
21110