Effects of biotic and abiotic factors on 15N in young Pinus radiata
In a 12-year-old Pinus radiata plantation, three dominant and three suppressed trees removed by thinning were randomly selected, and needles, annual rings from basal stem disks and bark were collected and analysed to study the relationships of climate, tree age, dominance and growth with tree 15N....
| Autores: | , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/107712 |
| Acceso en línea: | http://hdl.handle.net/10261/107712 |
| Access Level: | acceso abierto |
| Palabra clave: | Bark wood needles tree rings Pinus radiata |
| id |
ES_360afaeefd620631099702b9d2fd2b44 |
|---|---|
| oai_identifier_str |
oai:digital.csic.es:10261/107712 |
| network_acronym_str |
ES |
| network_name_str |
España |
| repository_id_str |
|
| spelling |
Effects of biotic and abiotic factors on 15N in young Pinus radiataCouto-Vázquez, A.González Prieto, Serafín JesúsBarkwoodneedlestree ringsPinus radiataIn a 12-year-old Pinus radiata plantation, three dominant and three suppressed trees removed by thinning were randomly selected, and needles, annual rings from basal stem disks and bark were collected and analysed to study the relationships of climate, tree age, dominance and growth with tree 15N. The high foliar-N concentration (1.35-2.73 % N, dw) suggested that N was not limiting tree growth, therefore allowing plants to fractionate versus 15N, leading to differences in 15N among trees. Most wood 15Nair values were below the 15Nair natural abundance in the dominant pines (-2.43 to +1.69 ‰) and above it in the suppressed trees (+0.73 to +3.35 ‰), likely due to the access of dominants to exogenous N sources with lower 15Nair than those of suppressed. However, no dominance effect was detected in 15Nair of bark and needles that decreased in the order: buds (+1.20 to +2.44 ‰) > needles 1-year (-0.27 to +1.43 ‰) > needles 2-years (-0.97 to +0.41 ‰) > bark (-1.18 to +0.15 ‰). Compared with the soil N in the 0-15 cm layer (15Nair= +4.8 ‰), all plant material was 15N-depleted. Results suggest that seedlings and foliar buds have a less efficient system for N conservation and recycling, with higher losses. The linear regression models showed that both biotic (dominance and tree age) and abiotic factors (temperature in spring-summer and annual precipitation) are needed to explain the wood 15Nair satisfactorily.Peer reviewedSpringer NatureConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201420142014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/107712reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1077122026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Effects of biotic and abiotic factors on 15N in young Pinus radiata |
| title |
Effects of biotic and abiotic factors on 15N in young Pinus radiata |
| spellingShingle |
Effects of biotic and abiotic factors on 15N in young Pinus radiata Couto-Vázquez, A. Bark wood needles tree rings Pinus radiata |
| title_short |
Effects of biotic and abiotic factors on 15N in young Pinus radiata |
| title_full |
Effects of biotic and abiotic factors on 15N in young Pinus radiata |
| title_fullStr |
Effects of biotic and abiotic factors on 15N in young Pinus radiata |
| title_full_unstemmed |
Effects of biotic and abiotic factors on 15N in young Pinus radiata |
| title_sort |
Effects of biotic and abiotic factors on 15N in young Pinus radiata |
| dc.creator.none.fl_str_mv |
Couto-Vázquez, A. González Prieto, Serafín Jesús |
| author |
Couto-Vázquez, A. |
| author_facet |
Couto-Vázquez, A. González Prieto, Serafín Jesús |
| author_role |
author |
| author2 |
González Prieto, Serafín Jesús |
| author2_role |
author |
| dc.contributor.none.fl_str_mv |
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Bark wood needles tree rings Pinus radiata |
| topic |
Bark wood needles tree rings Pinus radiata |
| description |
In a 12-year-old Pinus radiata plantation, three dominant and three suppressed trees removed by thinning were randomly selected, and needles, annual rings from basal stem disks and bark were collected and analysed to study the relationships of climate, tree age, dominance and growth with tree 15N. The high foliar-N concentration (1.35-2.73 % N, dw) suggested that N was not limiting tree growth, therefore allowing plants to fractionate versus 15N, leading to differences in 15N among trees. Most wood 15Nair values were below the 15Nair natural abundance in the dominant pines (-2.43 to +1.69 ‰) and above it in the suppressed trees (+0.73 to +3.35 ‰), likely due to the access of dominants to exogenous N sources with lower 15Nair than those of suppressed. However, no dominance effect was detected in 15Nair of bark and needles that decreased in the order: buds (+1.20 to +2.44 ‰) > needles 1-year (-0.27 to +1.43 ‰) > needles 2-years (-0.97 to +0.41 ‰) > bark (-1.18 to +0.15 ‰). Compared with the soil N in the 0-15 cm layer (15Nair= +4.8 ‰), all plant material was 15N-depleted. Results suggest that seedlings and foliar buds have a less efficient system for N conservation and recycling, with higher losses. The linear regression models showed that both biotic (dominance and tree age) and abiotic factors (temperature in spring-summer and annual precipitation) are needed to explain the wood 15Nair satisfactorily. |
| publishDate |
2014 |
| dc.date.none.fl_str_mv |
2014 2014 2014 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/107712 |
| url |
http://hdl.handle.net/10261/107712 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Sí |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Springer Nature |
| publisher.none.fl_str_mv |
Springer Nature |
| dc.source.none.fl_str_mv |
reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
| instname_str |
Consejo Superior de Investigaciones Científicas (CSIC) |
| reponame_str |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
| collection |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1869405932895600640 |
| score |
15.811543 |