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Informing models through empirical relationships between foliar phosphorus, nitrogen and photosynthesis across diverse woody species in tropical forests of Panama

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dc.contributor.author Norby, Richard J. en
dc.contributor.author Gu, Lianhong en
dc.contributor.author Haworth, Ivan C. en
dc.contributor.author Jensen, Anna M. en
dc.contributor.author Turner, Benjamin L. en
dc.contributor.author Walker, Anthony P. en
dc.contributor.author Warren, Jeffrey M. en
dc.contributor.author Weston, David J. en
dc.contributor.author Xu, Chonggang en
dc.contributor.author Winter, Klaus en
dc.date.accessioned 2016-12-20T23:21:33Z
dc.date.available 2016-12-20T23:21:33Z
dc.date.issued 2017
dc.identifier.citation Norby, Richard J., Gu, Lianhong, Haworth, Ivan C., Jensen, Anna M., Turner, Benjamin L., Walker, Anthony P., Warren, Jeffrey M., Weston, David J., Xu, Chonggang, and Winter, Klaus. 2017. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F30283">Informing models through empirical relationships between foliar phosphorus, nitrogen and photosynthesis across diverse woody species in tropical forests of Panama</a>." <em>New Phytologist</em>. 215 (4):1425&ndash;1437. <a href="https://doi.org/10.1111/nph.14319">https://doi.org/10.1111/nph.14319</a> en
dc.identifier.issn 0028-646X
dc.identifier.uri https://hdl.handle.net/10088/30283
dc.description.abstract Our objective was to analyze and summarize data describing photosynthetic parameters and foliar nutrient concentrations from tropical forests in Panama to inform model representation of phosphorus (P) limitation of tropical forest productivity. Gas exchange and nutrient content data were collected from 144 observations of upper canopy leaves from at least 65 species at two forest sites in Panama, differing in species composition, rainfall and soil fertility. Photosynthetic parameters were derived from analysis of assimilation rate vs internal CO2 concentration curves (A/Ci ), and relationships with foliar nitrogen (N) and P content were developed. The relationships between area-based photosynthetic parameters and nutrients were of similar strength for N and P and robust across diverse species and site conditions. The strongest relationship expressed maximum electron transport rate (Jmax ) as a multivariate function of both N and P, and this relationship was improved with the inclusion of independent data on wood density. Models that estimate photosynthesis from foliar N would be improved only modestly by including additional data on foliar P, but doing so may increase the capability of models to predict future conditions in P-limited tropical forests, especially when combined with data on edaphic conditions and other environmental drivers. en
dc.relation.ispartof New Phytologist en
dc.title Informing models through empirical relationships between foliar phosphorus, nitrogen and photosynthesis across diverse woody species in tropical forests of Panama en
dc.type Journal Article en
dc.identifier.srbnumber 141161
dc.identifier.doi 10.1111/nph.14319
rft.jtitle New Phytologist
rft.volume 215
rft.issue 4
rft.spage 1425
rft.epage 1437
dc.description.SIUnit STRI en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 1425
dc.citation.epage 1437


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