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dc.contributor.author
Pfautsch, Sebastian
dc.contributor.author
Peri, Pablo Luis
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dc.contributor.author
Macfarlane, Craig
dc.contributor.author
Ogtrop, Floris van
dc.contributor.author
Adams, Mark A.
dc.date.available
2018-01-08T20:50:10Z
dc.date.issued
2013-09
dc.identifier.citation
Peri, Pablo Luis; Ogtrop, Floris van; Adams, Mark A.; Pfautsch, Sebastian; Macfarlane, Craig; Relating water use to morphology and environment of Nothofagus from the world’s most southern forests; Springer; Trees; 28; 1; 9-2013; 125-136
dc.identifier.issn
0931-1890
dc.identifier.uri
http://hdl.handle.net/11336/32591
dc.description.abstract
A pronounced environmental gradient dictates the dominance of Nothofagus in the foothills on the eastern side of the Andes Mountains in Patagonia, Argentina. Below 50° southern latitude, open forests of Nothofagus antarctica (ñire) dominate the landscape towards the Patagonian steppe where annual rainfall is low. With increasing rates of annual rainfall, corresponding with an increase in elevation, closed forests of N. pumilio (lenga) replace those of ñire. During a short-term study we assessed differences in stand structure and examined environmental, structural and functional traits related to tree water use of ñire and lenga. Sap velocity reached similar maximum rates (95–100 L m−2 sapwood h−1), but whole-tree water use (Q) was significantly lower in ñire (8–13 L day−1 tree−1) compared to lenga (20–90 L day−1 tree−1) resulting in lower stand transpiration (ñire: 0.51 mm day−1; lenga: 3.42 mm day−1) despite similar tree densities. Related to this, wind speed had a particularly significant impact on Q of ñire, but not lenga. The ratio of leaf area to sapwood area (AL/AS) clearly identified ñire to be more structurally proficient at conserving water. While stem diameter (DBH) and crown area (AC) were well related in both species, only lenga exhibited relationships between variables related to tree allometry and physiology (AC/Q, DBH/Q). Our results provide the first ecophysiological characterization of the two Nothofagus species that define important and widespread ecosystems in southern Patagonia (not only below 50°S), and provide useful data to scale water use of both species from tree to stand.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Stand Transpiration
dc.subject
Crown Area
dc.subject
Leaf Area
dc.subject
Sapwood Area
dc.subject
Climate
dc.subject
Nothofagus Antarctica
dc.subject
Nothofagus Pumilio
dc.subject.classification
Otras Ciencias Biológicas
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Relating water use to morphology and environment of Nothofagus from the world’s most southern forests
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-01-08T19:46:44Z
dc.identifier.eissn
1432-2285
dc.journal.volume
28
dc.journal.number
1
dc.journal.pagination
125-136
dc.journal.pais
Alemania
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dc.journal.ciudad
Berlín
dc.description.fil
Fil: Pfautsch, Sebastian. University of Sydney; Australia. University of Western Sydney; Australia
dc.description.fil
Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Macfarlane, Craig. CSIRO Ecosystem Sciences; Australia
dc.description.fil
Fil: Ogtrop, Floris van. University of Sydney; Australia
dc.description.fil
Fil: Adams, Mark A.. University of Sydney; Australia
dc.journal.title
Trees
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00468-013-0935-4
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00468-013-0935-4
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