Effects of Thinning on Transpiration by Riparian Buffer Trees in Response to Advection and Solar Radiation

dc.contributor.author Schultz, Richard
dc.contributor.author Hernandez-Santana, V.
dc.contributor.author Asbjornsen, Heidi
dc.contributor.author Sauer, Thomas
dc.contributor.author Isenhart, Thomas
dc.contributor.author Isenhart, Thomas
dc.contributor.author Schultz, Richard
dc.contributor.author Schilling, Keith
dc.contributor.department Natural Resource Ecology and Management
dc.date 2018-02-17T00:07:59.000
dc.date.accessioned 2020-06-30T06:11:58Z
dc.date.available 2020-06-30T06:11:58Z
dc.date.issued 2012-01-01
dc.description.abstract <p>Upwind advective energy occurring in edge environments may increase tree water use. In humid agricultural landscapes, advection-enhanced transpiration in riparian buffers may provide hydrologic regulation. The objectives of this study were to determine how water use by trees growing in a riparian buffer in central Iowa is influenced by 1) advective energy, 2) tree position, and 3) thinning (40% LAI reduction). We measured meteorological variables and sap flux density from July to September in 13 trees (2009) and 12 trees (2010) in one thinned plot (TP, treated in Aug 2010) and one untreated (control) plot (UP). The difference in <em>Q<sub>s</sub></em>between edge and interior trees (39% higher in 2009) was attributed to the advective energy at the buffer edge. After thinning, maximum <em>Q<sub>s</sub></em> increased was greater in TP compared to UP, explained primarily by solar radiation (R<sup>2</sup>=0.7, p<0.05), since meteorological conditions were not optimal for advection. However, the LAI reduction counteracted the increase in whole tree <em>Q<sub>s</sub></em>, such that post-treatment plot transpiration per LAI measured from TP (0.4 mm day<sup>-1</sup>) was less than for UP (0.5 mm day<em>Q<sub>s</sub></em>).</p>
dc.description.comments <p>This article is from <em>Acta Horticulturae</em> 951 (2012): 225, doi:<a href="http://dx.doi.org/10.17660/ActaHortic.2012.951.27" target="_blank">10.17660/ActaHortic.2012.951.27</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/nrem_pubs/167/
dc.identifier.articleid 1173
dc.identifier.contextkey 7553574
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath nrem_pubs/167
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/56179
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/nrem_pubs/167/2012_Isenhart_EffectsThinning.pdf|||Fri Jan 14 21:04:31 UTC 2022
dc.source.uri 10.17660/ActaHortic.2012.951.27
dc.subject.disciplines Forest Sciences
dc.subject.disciplines Hydrology
dc.subject.disciplines Natural Resources Management and Policy
dc.subject.keywords corn belt
dc.subject.keywords Acer saccharinum
dc.subject.keywords agroforestry
dc.subject.keywords edge effect
dc.subject.keywords sap flux
dc.title Effects of Thinning on Transpiration by Riparian Buffer Trees in Response to Advection and Solar Radiation
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 70b34b2e-4540-4fad-b040-b62ff492609f
relation.isAuthorOfPublication 5302870e-a897-487b-8ca6-2d573294468a
relation.isOrgUnitOfPublication e87b7b9d-30ea-4978-9fb9-def61b4010ae
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