Water use of Juniperus virginiana trees encroached into mesic prairies in Oklahoma, USA

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dc.contributor.authorCaterina, Giulia L. [UNESP]
dc.contributor.authorWill, Rodney E.
dc.contributor.authorTurton, Donald J.
dc.contributor.authorWilson, Duncan S.
dc.contributor.authorZou, Chris B.
dc.contributor.institutionOklahoma State Univ
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-03-18T15:52:33Z
dc.date.available2015-03-18T15:52:33Z
dc.date.issued2014-08-01
dc.description.abstractJuniperus virginiana (eastern redcedar) is encroaching into mesic prairies of the southern Great Plains, USA, and is altering the hydrologic cycle. We used the thermal dissipation technique to quantify daily water use of J. virginiana into a mesic prairie by measuring 19 trees of different sizes from different density stands located in north-central Oklahoma during 2011. We took the additional step to calibrate our measurements by comparing thermal dissipation technique estimates to volumetric water use for a subset of trees. Except for days with maximum air temperature below -3 degrees C, J. virginiana trees used water year round, reached a peak in late May, and exhibited reduced water use in summer when soil water availability was low. Overall daily average water use was 24 l (+/- 21.81 s.d.) per tree. Trees in low density stands used more water than trees with similar diameters from denser stands. However, there was no difference in water use between trees in different density stands when expressed on a canopy area basis. Approximately 50% of variation in water use that remained after accounting for the factors site, tree, and day was explained using a physiologically-based model that included daily potential evapotranspiration, maximum vapour pressure deficit, maximum temperature, solar radiation, and soil water storage between 0 and 10 cm. Our model suggested that a J. virginiana woodland with a closed canopy is capable of transpiring almost all precipitation reaching the soil in years with normal precipitation, indicating the potential for encroachment to reduce water yield for streamflow and groundwater recharge. Copyright (C) 2013 John Wiley & Sons, Ltd.en
dc.description.affiliationOklahoma State Univ, Dept Nat Resource Ecol & Management, Stillwater, OK 74078 USA
dc.description.affiliationSao Paulo State Univ, Coll Agr Sci, BR-18610307 Sao Paulo, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Coll Agr Sci, BR-18610307 Sao Paulo, Brazil
dc.description.sponsorshipUnited States Geological Survey/National Water Research Institute
dc.description.sponsorshipOSU CTER research station
dc.description.sponsorshipIdUnited States Geological Survey/National Water Research InstituteG09AP00146
dc.format.extent1124-1134
dc.identifierhttp://dx.doi.org/10.1002/eco.1444
dc.identifier.citationEcohydrology. Hoboken: Wiley-blackwell, v. 7, n. 4, p. 1124-1134, 2014.
dc.identifier.doi10.1002/eco.1444
dc.identifier.issn1936-0584
dc.identifier.urihttp://hdl.handle.net/11449/116187
dc.identifier.wosWOS:000340541600006
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofEcohydrology
dc.relation.ispartofjcr2.755
dc.relation.ispartofsjr1,152
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjecteastern redcedaren
dc.subjecttranspirationen
dc.subjectsap fluxen
dc.subjectGranier-type sensoren
dc.subjectGreat Plainsen
dc.titleWater use of Juniperus virginiana trees encroached into mesic prairies in Oklahoma, USAen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell

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