Nutrient cycling in different topographic conditions in Semideciduous Forest, Pinheiral – RJ state
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/26880 |
Resumo: | In forest ecosystems the dynamics of burlap is related to the plant typology and to the climatic conditions of environments, which are influenced by the topographic heterogeneity of the landscape. The objective of this study was to evaluate whether different relief conditions (convex and concave pedoforms) alter the burlap dynamics in a semi-deciduous seasonal forest in the sub-basin of Cachimbal, Pinheiral – RJ state. Two adjacent landforms with relief convex type (convex-divergent) and concave (concave-convergent) were selected, and these ones were divided into mini sites (MS) I, II, and III in the convex landform and IV, V and VI in the concave landform. The stock and the decomposition of the burlap in two seasons (rainy and dry) were rated in different environments. To evaluate the stock, ten samples of litter from each MS were collected using a square template with 25-cm side. To evaluate the burlap decomposition rate, 10 g of leaves were selected, which were placed in litterbags, installed in the field and collected at different time intervals. Litter stock and nutrient contents were influenced by the pedoform type, topographic gradient variation and season, larger stocks were observed in convex pedoform in dry season and higher K + and Mg + 2 contents. in the lower pedoform MS. On the other hand, the carbon contents were influenced only by the season of the year like higher contents in the rainy season. The decomposition of burlap forming material occurs differently depending on the landform, topographic gradient and on the season, where the highest values were observed in the convex landform and in the rainy season. |
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Nutrient cycling in different topographic conditions in Semideciduous Forest, Pinheiral – RJ stateCiclagem de nutrientes em diferentes condições topográficas em Floresta Estacional Semidecidual, Pinheiral-RJLitterDecompositionForest ecosystemsSerapilheiraDecomposiçãoEcossistemas florestaisIn forest ecosystems the dynamics of burlap is related to the plant typology and to the climatic conditions of environments, which are influenced by the topographic heterogeneity of the landscape. The objective of this study was to evaluate whether different relief conditions (convex and concave pedoforms) alter the burlap dynamics in a semi-deciduous seasonal forest in the sub-basin of Cachimbal, Pinheiral – RJ state. Two adjacent landforms with relief convex type (convex-divergent) and concave (concave-convergent) were selected, and these ones were divided into mini sites (MS) I, II, and III in the convex landform and IV, V and VI in the concave landform. The stock and the decomposition of the burlap in two seasons (rainy and dry) were rated in different environments. To evaluate the stock, ten samples of litter from each MS were collected using a square template with 25-cm side. To evaluate the burlap decomposition rate, 10 g of leaves were selected, which were placed in litterbags, installed in the field and collected at different time intervals. Litter stock and nutrient contents were influenced by the pedoform type, topographic gradient variation and season, larger stocks were observed in convex pedoform in dry season and higher K + and Mg + 2 contents. in the lower pedoform MS. On the other hand, the carbon contents were influenced only by the season of the year like higher contents in the rainy season. The decomposition of burlap forming material occurs differently depending on the landform, topographic gradient and on the season, where the highest values were observed in the convex landform and in the rainy season.Nos ecossistemas florestais, a dinâmica da serapilheira está relacionada à tipologia vegetal e as condições climáticas dos ambientes, as quais são influenciadas pela heterogeneidade topográfica da paisagem. Assim, o objetivo deste estudo foi avaliar se diferentes condições de relevo (pedoformas convexa e côncava) alteram a dinâmica da serapilheira em Floresta Estacional Semidecidual na sub-bacia do ribeirão Cachimbal, Pinheiral-RJ. Foram selecionadas duas pedoformas adjacentes com relevo do tipo convexa (convexa-divergente) e côncava (côncava-convergente), sendo essas divididas em minissítios (MS) I, II, e III na pedoforma convexa e IV, V e VI na pedoforma côncava. Nos diferentes ambientes foram avaliados o estoque e a decomposição da serapilheira em duas estações do ano (chuvosa e seca). Para avaliar o estoque foram coletadas dez amostras de serapilheira de cada um dos MS, utilizando um gabarito quadrado com 25 cm de lado. Para avaliar a taxa de decomposição da serapilheira, foram selecionadas 10 g de folhas, as quais foram acondicionadas em litterbags, instalados no campo e coletadas em diferentes intervalos de tempo. O estoque e os teores de nutrientes da serapilheira foram influenciados em função do tipo da pedoforma, variação do gradiente topográfico e estação do ano, maiores estoques foram observados na pedoforma convexa, em estação seca e os maiores teores de K+ e Mg+2 foram observados nos MS inferiores das pedoformas. Por outro lado, os teores de carbono foram influenciados apenas pela estação do ano como maiores teores na estação chuvosa. A decomposição da serapilheira ocorre de maneira diferenciada em função da pedoforma, do gradiente topográfico e da estação do ano, cujos maiores valores foram observados na pedoforma convexa e na estação chuvosa.Universidade Federal de Santa Maria2019-12-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/2688010.5902/1980509826880Ciência Florestal; Vol. 29 No. 4 (2019); 1737-1747Ciência Florestal; v. 29 n. 4 (2019); 1737-17471980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/26880/26880Copyright (c) 2019 Ciência Florestalinfo:eu-repo/semantics/openAccessSantos, Gilsonley Lopes dosPereira, Marcos GervasioCorrêa Neto, Thais de AndradeMendonça, Victória Maria MonteiroMenezes, Carlos Eduardo Gabriel2019-12-10T21:30:48Zoai:ojs.pkp.sfu.ca:article/26880Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2019-12-10T21:30:48Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Nutrient cycling in different topographic conditions in Semideciduous Forest, Pinheiral – RJ state Ciclagem de nutrientes em diferentes condições topográficas em Floresta Estacional Semidecidual, Pinheiral-RJ |
title |
Nutrient cycling in different topographic conditions in Semideciduous Forest, Pinheiral – RJ state |
spellingShingle |
Nutrient cycling in different topographic conditions in Semideciduous Forest, Pinheiral – RJ state Santos, Gilsonley Lopes dos Litter Decomposition Forest ecosystems Serapilheira Decomposição Ecossistemas florestais |
title_short |
Nutrient cycling in different topographic conditions in Semideciduous Forest, Pinheiral – RJ state |
title_full |
Nutrient cycling in different topographic conditions in Semideciduous Forest, Pinheiral – RJ state |
title_fullStr |
Nutrient cycling in different topographic conditions in Semideciduous Forest, Pinheiral – RJ state |
title_full_unstemmed |
Nutrient cycling in different topographic conditions in Semideciduous Forest, Pinheiral – RJ state |
title_sort |
Nutrient cycling in different topographic conditions in Semideciduous Forest, Pinheiral – RJ state |
author |
Santos, Gilsonley Lopes dos |
author_facet |
Santos, Gilsonley Lopes dos Pereira, Marcos Gervasio Corrêa Neto, Thais de Andrade Mendonça, Victória Maria Monteiro Menezes, Carlos Eduardo Gabriel |
author_role |
author |
author2 |
Pereira, Marcos Gervasio Corrêa Neto, Thais de Andrade Mendonça, Victória Maria Monteiro Menezes, Carlos Eduardo Gabriel |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Santos, Gilsonley Lopes dos Pereira, Marcos Gervasio Corrêa Neto, Thais de Andrade Mendonça, Victória Maria Monteiro Menezes, Carlos Eduardo Gabriel |
dc.subject.por.fl_str_mv |
Litter Decomposition Forest ecosystems Serapilheira Decomposição Ecossistemas florestais |
topic |
Litter Decomposition Forest ecosystems Serapilheira Decomposição Ecossistemas florestais |
description |
In forest ecosystems the dynamics of burlap is related to the plant typology and to the climatic conditions of environments, which are influenced by the topographic heterogeneity of the landscape. The objective of this study was to evaluate whether different relief conditions (convex and concave pedoforms) alter the burlap dynamics in a semi-deciduous seasonal forest in the sub-basin of Cachimbal, Pinheiral – RJ state. Two adjacent landforms with relief convex type (convex-divergent) and concave (concave-convergent) were selected, and these ones were divided into mini sites (MS) I, II, and III in the convex landform and IV, V and VI in the concave landform. The stock and the decomposition of the burlap in two seasons (rainy and dry) were rated in different environments. To evaluate the stock, ten samples of litter from each MS were collected using a square template with 25-cm side. To evaluate the burlap decomposition rate, 10 g of leaves were selected, which were placed in litterbags, installed in the field and collected at different time intervals. Litter stock and nutrient contents were influenced by the pedoform type, topographic gradient variation and season, larger stocks were observed in convex pedoform in dry season and higher K + and Mg + 2 contents. in the lower pedoform MS. On the other hand, the carbon contents were influenced only by the season of the year like higher contents in the rainy season. The decomposition of burlap forming material occurs differently depending on the landform, topographic gradient and on the season, where the highest values were observed in the convex landform and in the rainy season. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-12-10 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/26880 10.5902/1980509826880 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/26880 |
identifier_str_mv |
10.5902/1980509826880 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/26880/26880 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Ciência Florestal info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Ciência Florestal |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 29 No. 4 (2019); 1737-1747 Ciência Florestal; v. 29 n. 4 (2019); 1737-1747 1980-5098 0103-9954 reponame:Ciência Florestal (Online) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
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1799944131900866560 |