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Relationship between photosynthetic-water and nitrogen use efficiencies in young Pinus taeda L. trees at two contrasting sites
| dc.contributor.author | Yáñez, Marco A. | |
| dc.contributor.author | Espinoza, Sergio E | |
| dc.contributor.author | Ovalle, Juan F. | |
| dc.contributor.author | Magni, Carlos | |
| dc.contributor.author | Martínez, Eduardo E. | |
| dc.date.accessioned | 2024-04-16T19:27:32Z | |
| dc.date.available | 2024-04-16T19:27:32Z | |
| dc.date.issued | 2024 | |
| dc.identifier.uri | http://repositorio.ucm.cl/handle/ucm/5327 | |
| dc.description.abstract | Background: Nitrogen and water are important limiting factors to forest productivity. At the plant level, there is contrasting empirical evidence about the trade-off between water use efficiency (WUE) and nitrogen use efficiency (NUE). Methods: A study was conducted on 3-year-old loblolly pine (Pinus taeda L.) trees sampled at two contrasting sites (Virginia Piedmont (VA) and North Carolina Coastal Plain (NC)) in the southeastern United States. We investigated the leaf-level relationship between water and nitrogen use efficiency (i.e., WUEins versus PNUE). Both parameters were measured in the fall, three years after outplanting. Results: WUEins and PNUE were higher at VA than NC. At both sites, WUEins increased from August to November, while PNUE showed a consistent decline for the same period only at NC, with no clear pattern observed at VA. The Pearson’s coefficient of correlation (r) between WUEins and PNUE was negative (r=0.50) at VA in August, positive (r=0.77) at NC in October, and insignificant for the other measurement dates. Conclusions: Regardless of the site, at the young stage of stand development, WUEins and PNUE were mostly uncoupled, although it can be speculated that a transient trade-off between these two variables can be expected depending on soil water rather than nitrogen availability. | es_CL |
| dc.language.iso | en | es_CL |
| dc.rights | Atribución-NoComercial-SinDerivadas 3.0 Chile | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | * |
| dc.source | New Zealand Journal of Forestry Science, 54, 5 | es_CL |
| dc.subject | Instantaneous water use efficiency | es_CL |
| dc.subject | Photosynthetic nitrogen use efficiency | es_CL |
| dc.subject | Loblolly pine | es_CL |
| dc.title | Relationship between photosynthetic-water and nitrogen use efficiencies in young Pinus taeda L. trees at two contrasting sites | es_CL |
| dc.type | Article | es_CL |
| dc.ucm.facultad | Facultad de Ciencias Agrarias y Forestales | es_CL |
| dc.ucm.indexacion | Scopus | es_CL |
| dc.ucm.uri | nzjforestryscience.nz/index.php/nzjfs/article/view/281 | es_CL |
| dc.ucm.doi | doi.org/10.33494/nzjfs542024x281x | es_CL |
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