Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern Portugal
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10198/16224 |
Resumo: | Since the late 1980's the productivity of monocultures vs. mixed-species forests has been the subject of studies by forest managers and ecologists. Mixed plantations have been established in different proportions to determine if mixtures could provide greater yields and more benefits than monocultures of the component species, as well as to understand if they could be an interesting economic option. An experimental design trial was set up in the north of Portugal in a replacement series with pure and mixed Castanea sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco. The objective of this study was to assess growth dynamics and compare the aboveground biomass and net primary production of the two species in pure and mixed treatments in proportions 1:1 and 1:3. The growth was measured at 7, 11, 15, 17, 19, 27 and 28 years after planting and aboveground net primary production was estimated at age 28. As a component of the mixed treatments, P. menziesii exhibited greater height, diameter and aboveground biomass than C. sativa. Relative yield total indicated a higher productivity in the mixtures compared with the pure treatments. Early in the development, pure treatments and mixtures had similar aboveground biomass per hectare, but later the mixtures showed higher yield than pure treatments. The mixture productivity increase through time appears to be the result of both canopy stratification and better use of site resources. The aboveground net primary production was also higher in mixed than in the pure treatments. |
id |
RCAP_98797eefa0533743f64b9d2d2a38c5ac |
---|---|
oai_identifier_str |
oai:bibliotecadigital.ipb.pt:10198/16224 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern PortugalBiomassGrowthInteractionsMixed-speciesProductivityReplacement seriesSince the late 1980's the productivity of monocultures vs. mixed-species forests has been the subject of studies by forest managers and ecologists. Mixed plantations have been established in different proportions to determine if mixtures could provide greater yields and more benefits than monocultures of the component species, as well as to understand if they could be an interesting economic option. An experimental design trial was set up in the north of Portugal in a replacement series with pure and mixed Castanea sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco. The objective of this study was to assess growth dynamics and compare the aboveground biomass and net primary production of the two species in pure and mixed treatments in proportions 1:1 and 1:3. The growth was measured at 7, 11, 15, 17, 19, 27 and 28 years after planting and aboveground net primary production was estimated at age 28. As a component of the mixed treatments, P. menziesii exhibited greater height, diameter and aboveground biomass than C. sativa. Relative yield total indicated a higher productivity in the mixtures compared with the pure treatments. Early in the development, pure treatments and mixtures had similar aboveground biomass per hectare, but later the mixtures showed higher yield than pure treatments. The mixture productivity increase through time appears to be the result of both canopy stratification and better use of site resources. The aboveground net primary production was also higher in mixed than in the pure treatments.We are most grateful to Carlos Fernandes and Carlos Brito for their help with the field data collection, to Armindo Teixeira and Helena Ferreira for their help in the laboratory. This study was funded by FCT research in project PTDC/AGR-CF/68186/2006 and FCT Program SFRH/PROTEC/50127/2009Biblioteca Digital do IPBNunes, LeóniaGower, Stith T.Monteiro, Maria do LoretoLopes, DomingosRego, Francisco2018-01-19T10:00:00Z20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/16224engNunes, Leónia; Gower, Stith T.; Monteiro, Maria L.; Lopes, Domingos; Rego, Francisco C. (2014). Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern Portugal. IForest. ISSN 1971-7458. 7, p. 92-1021971-745810.3832/ifor1087-007info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-21T10:37:20Zoai:bibliotecadigital.ipb.pt:10198/16224Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:05:27.752153Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern Portugal |
title |
Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern Portugal |
spellingShingle |
Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern Portugal Nunes, Leónia Biomass Growth Interactions Mixed-species Productivity Replacement series |
title_short |
Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern Portugal |
title_full |
Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern Portugal |
title_fullStr |
Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern Portugal |
title_full_unstemmed |
Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern Portugal |
title_sort |
Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern Portugal |
author |
Nunes, Leónia |
author_facet |
Nunes, Leónia Gower, Stith T. Monteiro, Maria do Loreto Lopes, Domingos Rego, Francisco |
author_role |
author |
author2 |
Gower, Stith T. Monteiro, Maria do Loreto Lopes, Domingos Rego, Francisco |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Nunes, Leónia Gower, Stith T. Monteiro, Maria do Loreto Lopes, Domingos Rego, Francisco |
dc.subject.por.fl_str_mv |
Biomass Growth Interactions Mixed-species Productivity Replacement series |
topic |
Biomass Growth Interactions Mixed-species Productivity Replacement series |
description |
Since the late 1980's the productivity of monocultures vs. mixed-species forests has been the subject of studies by forest managers and ecologists. Mixed plantations have been established in different proportions to determine if mixtures could provide greater yields and more benefits than monocultures of the component species, as well as to understand if they could be an interesting economic option. An experimental design trial was set up in the north of Portugal in a replacement series with pure and mixed Castanea sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco. The objective of this study was to assess growth dynamics and compare the aboveground biomass and net primary production of the two species in pure and mixed treatments in proportions 1:1 and 1:3. The growth was measured at 7, 11, 15, 17, 19, 27 and 28 years after planting and aboveground net primary production was estimated at age 28. As a component of the mixed treatments, P. menziesii exhibited greater height, diameter and aboveground biomass than C. sativa. Relative yield total indicated a higher productivity in the mixtures compared with the pure treatments. Early in the development, pure treatments and mixtures had similar aboveground biomass per hectare, but later the mixtures showed higher yield than pure treatments. The mixture productivity increase through time appears to be the result of both canopy stratification and better use of site resources. The aboveground net primary production was also higher in mixed than in the pure treatments. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 2014-01-01T00:00:00Z 2018-01-19T10:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10198/16224 |
url |
http://hdl.handle.net/10198/16224 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Nunes, Leónia; Gower, Stith T.; Monteiro, Maria L.; Lopes, Domingos; Rego, Francisco C. (2014). Growth dynamics and productivity of pure and mixed Castanea Sativa Mill. and Pseudotsuga menziesii (Mirb.) Franco plantations in Northern Portugal. IForest. ISSN 1971-7458. 7, p. 92-102 1971-7458 10.3832/ifor1087-007 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799135305203187712 |