Características funcionais de árvores em floresta tropical úmida urbana
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRPE |
Texto Completo: | http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7380 |
Resumo: | The relation between basal area, light, and functional characteristics variation is still an unexplored issue, especially in tropical forests with different disturbance regimes, such as urban fragments. The following hypotheses were tested: 1) basal area of arboreal plants and light disponibility is a good predictor of the functional characteristics once it is believed that in forest environments with a lower basal área and much light, functional characteristics values, linked to the fast light resources utilization are found in both leaves (larger leaf area, specific leaf area, chlorophyll concentrations, dry) and stem and root (higher saturated water amount, lower wood density and lower dry matter content); 2) that in environments where there is higher light availability, the standard deviation values of the leaf characteristics will be higher. If this is true, more considerable variation in dry leaf matter, specific leaf area, leaf area and chlorophyll content in these environments are expected. To test these hypotheses, data of 10 functional characteristics (leaf, trunk and root) were collected in 41 species, distributed in four environments: one with larger basal area (A1>AB), two with intermediate basal area (A2ABI and A3ABI) and one with a lower basal area (A4<AB). The functional characteristics values were not influenced by the geographic distance (spatial autocorrelation) neither by the species phylogeny. The prediction that in the areas with the lower basal area, values of characteristics associated with the rapid use of the light resource were confirmed for five characteristics: dry leaf matter (LMDC), stem (SDMC) and root (RDMC), the density of wood stem (WDC) and root (WDR). Contrary to expectations, we did not find significant investment in structural carbon (higher dry matter values of leaf and wood) in environments with the higher basal area. If we consider that in urban fragments the disturbances are frequent, it is possible to suppose that plants with lower values of LDMC, DWC, DWR, SDMC, and RDMC have also "established" in the two areas with a higher basal area. We can conclude that in fragments in tropical urban forest studied, perturbations can change the succession path due to population dynamics, especially in the area with more abundant light availability and lesser basal area (A4<AB). We suggest that this greater light input in the A4<AB environment, due to the greater perturbations, would lead plants with the strategy of using a slow resource, favoring those with fast use of the resource, and as a result, there would be less variability of the leaf characteristics in A4<AB. We conclude that basal area and light are not good predictors of variations of functional characteristics in the urban fragments studied. |
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RODAL, Maria Jesus NogueiraSILVA, Maria Amanda MenezesLIMA, André Luiz Alves deSFAIR, Julia CaramSILVA, Ana Carolina Borges Lins eGUERRA, Tassiane Novacosque FeitosaFELICIANO, Ana Lícia Patriotahttp://lattes.cnpq.br/9553311470144119LEITE, Maria José de Holanda2018-08-01T15:19:00Z2018-02-21LEITE, Maria José de Holanda. Características funcionais de árvores em floresta tropical úmida urbana. 2018. 61 f. Tese (Programa de Pós-Graduação em Ciências Florestais) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7380The relation between basal area, light, and functional characteristics variation is still an unexplored issue, especially in tropical forests with different disturbance regimes, such as urban fragments. The following hypotheses were tested: 1) basal area of arboreal plants and light disponibility is a good predictor of the functional characteristics once it is believed that in forest environments with a lower basal área and much light, functional characteristics values, linked to the fast light resources utilization are found in both leaves (larger leaf area, specific leaf area, chlorophyll concentrations, dry) and stem and root (higher saturated water amount, lower wood density and lower dry matter content); 2) that in environments where there is higher light availability, the standard deviation values of the leaf characteristics will be higher. If this is true, more considerable variation in dry leaf matter, specific leaf area, leaf area and chlorophyll content in these environments are expected. To test these hypotheses, data of 10 functional characteristics (leaf, trunk and root) were collected in 41 species, distributed in four environments: one with larger basal area (A1>AB), two with intermediate basal area (A2ABI and A3ABI) and one with a lower basal area (A4<AB). The functional characteristics values were not influenced by the geographic distance (spatial autocorrelation) neither by the species phylogeny. The prediction that in the areas with the lower basal area, values of characteristics associated with the rapid use of the light resource were confirmed for five characteristics: dry leaf matter (LMDC), stem (SDMC) and root (RDMC), the density of wood stem (WDC) and root (WDR). Contrary to expectations, we did not find significant investment in structural carbon (higher dry matter values of leaf and wood) in environments with the higher basal area. If we consider that in urban fragments the disturbances are frequent, it is possible to suppose that plants with lower values of LDMC, DWC, DWR, SDMC, and RDMC have also "established" in the two areas with a higher basal area. We can conclude that in fragments in tropical urban forest studied, perturbations can change the succession path due to population dynamics, especially in the area with more abundant light availability and lesser basal area (A4<AB). We suggest that this greater light input in the A4<AB environment, due to the greater perturbations, would lead plants with the strategy of using a slow resource, favoring those with fast use of the resource, and as a result, there would be less variability of the leaf characteristics in A4<AB. We conclude that basal area and light are not good predictors of variations of functional characteristics in the urban fragments studied.A relação entre área basal, luz e a variação das características funcionais ainda é uma questão pouco explorada, especialmente em florestas tropicais com diferentes regimes de perturbação, como os fragmentos urbanos. Deste modo, foram testadas as seguintes hipóteses: 1) de que a área basal de plantas arbóreas é um bom preditor das características funcionais pois, acredita-se que em ambientes florestais com menor área basal e maior intensidade luminosa sejam encontrados valores de características funcionais ligados à rápida utilização do recurso luz, tanto nas folhas (maior área foliar, área foliar específica, concentrações de clorofila, baixo investimento em matéria seca) quanto no caule e raiz (maior quantidade de água saturada, menor densidade de madeira e menores teores de matéria seca); 2) de que no ambiente onde há maior disponibilidade de luz, os valores do coeficiente de variação das características foliares serão maiores. Caso isso seja verdade, espera-se maior variação no teor de matéria seca foliar, área foliar específica, área foliar e conteúdo de clorofila nesse ambiente. Para testar estas hipóteses, foram coletados dados de 10 características funcionais (foliares, tronco e raiz) em 41 espécies, distribuídas em quatro ambientes: um com maior área basal (A1>AB), dois com área basal intermediária (A2ABI e A3ABI) e um com menor área basal (A4<AB). Os valores das características funcionais não foram influenciados pela distância geográfica (autocorrelação espacial) e nem pela filogenia das espécies. A previsão de que em ambientes com menor área basal seriam encontrados valores de características ligadas à rápida utilização do recurso luz, foi confirmada para cinco características: teores de matéria seca da folha (TMSF), caule (TMSC) e raiz (TMSR), densidade de madeira caule (DMC) e da raiz (DMR). Ao contrário do esperado, não encontramos maior investimento em carbono estrutural (maiores valores de matéria seca da folha e da madeira) em ambientes com maiores áreas basais. Se consideramos que em fragmentos urbanos as perturbações são frequentes é possível supor que plantas com menores valores de TMSF, DMC, DMR, TMSC e TMSR tenham “se estabelecido” também nos dois ambientes com maior área basal. Dessa forma, podemos concluir que em fragmentos de florestas tropicais urbanas, as perturbações podem alterar o caminho sucessão em função da dinâmica das populações, especialmente na área com menor área basal e maior disponibilidade de luz (A4<AB). Sugerimos que essa maior entrada de luz no ambiente A4<AB, devido as maiores perturbações, levaria a maior mortalidade de plantas com uso lento do recurso, favorecendo ainda mais aquelas de uso rápido do recurso, e como resultado haveria menor variabilidade das características foliares em A4<AB. Concluímos que a área basal e a luz não são bons preditores das variações das características funcionais no fragmento urbano estudado.Submitted by Mario BC (mario@bc.ufrpe.br) on 2018-08-01T15:19:00Z No. of bitstreams: 1 Maria Jose de Holanda Leite.pdf: 1644551 bytes, checksum: fbc59205d831303dcdc05be966f13e4f (MD5)Made available in DSpace on 2018-08-01T15:19:00Z (GMT). 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dc.title.por.fl_str_mv |
Características funcionais de árvores em floresta tropical úmida urbana |
dc.title.alternative.eng.fl_str_mv |
Functional characteristics of trees in urban rainforest |
title |
Características funcionais de árvores em floresta tropical úmida urbana |
spellingShingle |
Características funcionais de árvores em floresta tropical úmida urbana LEITE, Maria José de Holanda Fragmento florestal Floresta urbana Área basal Característica funcional CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
title_short |
Características funcionais de árvores em floresta tropical úmida urbana |
title_full |
Características funcionais de árvores em floresta tropical úmida urbana |
title_fullStr |
Características funcionais de árvores em floresta tropical úmida urbana |
title_full_unstemmed |
Características funcionais de árvores em floresta tropical úmida urbana |
title_sort |
Características funcionais de árvores em floresta tropical úmida urbana |
author |
LEITE, Maria José de Holanda |
author_facet |
LEITE, Maria José de Holanda |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
RODAL, Maria Jesus Nogueira |
dc.contributor.advisor-co1.fl_str_mv |
SILVA, Maria Amanda Menezes |
dc.contributor.advisor-co2.fl_str_mv |
LIMA, André Luiz Alves de |
dc.contributor.referee1.fl_str_mv |
SFAIR, Julia Caram |
dc.contributor.referee2.fl_str_mv |
SILVA, Ana Carolina Borges Lins e |
dc.contributor.referee3.fl_str_mv |
GUERRA, Tassiane Novacosque Feitosa |
dc.contributor.referee4.fl_str_mv |
FELICIANO, Ana Lícia Patriota |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/9553311470144119 |
dc.contributor.author.fl_str_mv |
LEITE, Maria José de Holanda |
contributor_str_mv |
RODAL, Maria Jesus Nogueira SILVA, Maria Amanda Menezes LIMA, André Luiz Alves de SFAIR, Julia Caram SILVA, Ana Carolina Borges Lins e GUERRA, Tassiane Novacosque Feitosa FELICIANO, Ana Lícia Patriota |
dc.subject.por.fl_str_mv |
Fragmento florestal Floresta urbana Área basal Característica funcional |
topic |
Fragmento florestal Floresta urbana Área basal Característica funcional CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
dc.subject.cnpq.fl_str_mv |
CIENCIAS AGRARIAS::RECURSOS FLORESTAIS E ENGENHARIA FLORESTAL |
description |
The relation between basal area, light, and functional characteristics variation is still an unexplored issue, especially in tropical forests with different disturbance regimes, such as urban fragments. The following hypotheses were tested: 1) basal area of arboreal plants and light disponibility is a good predictor of the functional characteristics once it is believed that in forest environments with a lower basal área and much light, functional characteristics values, linked to the fast light resources utilization are found in both leaves (larger leaf area, specific leaf area, chlorophyll concentrations, dry) and stem and root (higher saturated water amount, lower wood density and lower dry matter content); 2) that in environments where there is higher light availability, the standard deviation values of the leaf characteristics will be higher. If this is true, more considerable variation in dry leaf matter, specific leaf area, leaf area and chlorophyll content in these environments are expected. To test these hypotheses, data of 10 functional characteristics (leaf, trunk and root) were collected in 41 species, distributed in four environments: one with larger basal area (A1>AB), two with intermediate basal area (A2ABI and A3ABI) and one with a lower basal area (A4<AB). The functional characteristics values were not influenced by the geographic distance (spatial autocorrelation) neither by the species phylogeny. The prediction that in the areas with the lower basal area, values of characteristics associated with the rapid use of the light resource were confirmed for five characteristics: dry leaf matter (LMDC), stem (SDMC) and root (RDMC), the density of wood stem (WDC) and root (WDR). Contrary to expectations, we did not find significant investment in structural carbon (higher dry matter values of leaf and wood) in environments with the higher basal area. If we consider that in urban fragments the disturbances are frequent, it is possible to suppose that plants with lower values of LDMC, DWC, DWR, SDMC, and RDMC have also "established" in the two areas with a higher basal area. We can conclude that in fragments in tropical urban forest studied, perturbations can change the succession path due to population dynamics, especially in the area with more abundant light availability and lesser basal area (A4<AB). We suggest that this greater light input in the A4<AB environment, due to the greater perturbations, would lead plants with the strategy of using a slow resource, favoring those with fast use of the resource, and as a result, there would be less variability of the leaf characteristics in A4<AB. We conclude that basal area and light are not good predictors of variations of functional characteristics in the urban fragments studied. |
publishDate |
2018 |
dc.date.accessioned.fl_str_mv |
2018-08-01T15:19:00Z |
dc.date.issued.fl_str_mv |
2018-02-21 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
LEITE, Maria José de Holanda. Características funcionais de árvores em floresta tropical úmida urbana. 2018. 61 f. Tese (Programa de Pós-Graduação em Ciências Florestais) - Universidade Federal Rural de Pernambuco, Recife. |
dc.identifier.uri.fl_str_mv |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7380 |
identifier_str_mv |
LEITE, Maria José de Holanda. Características funcionais de árvores em floresta tropical úmida urbana. 2018. 61 f. Tese (Programa de Pós-Graduação em Ciências Florestais) - Universidade Federal Rural de Pernambuco, Recife. |
url |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7380 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.program.fl_str_mv |
6708762392030887359 |
dc.relation.confidence.fl_str_mv |
600 600 600 |
dc.relation.department.fl_str_mv |
8320097514872741102 |
dc.relation.cnpq.fl_str_mv |
-604049389552879283 |
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.publisher.none.fl_str_mv |
Universidade Federal Rural de Pernambuco |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Ciências Florestais |
dc.publisher.initials.fl_str_mv |
UFRPE |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Departamento de Ciência Florestal |
publisher.none.fl_str_mv |
Universidade Federal Rural de Pernambuco |
dc.source.none.fl_str_mv |
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