BIOMASS AND NUTRIENT IN AN Hovenia dulcis Thunb. STAND AT FEPAGRO FLORESTAS, SANTA MARIA, RS
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/519 |
Resumo: | This study had as objective to estimate the above ground biomass production and the percentage distribution of its components and nutritious amount in an 18-year-old-Hovenia dulcis stand planted in Foundation of Agricultural Research (FEPAGRO), Santa Maria, RS. Through the sampling of four randomized plots, trees were distributed in four diametric classes, with size of 5,75 cm, in which the upper and the lower limit trees were cut down, as well at the medium limit trees. Considering the model lny = b0+b1.ln DAP+b2.ln h, and using 12 trees, the biomass from different components of the trees was estimated. The estimated biomass was 181.6 Mg ha-1, being distributed in the following order: wood 68.6%, branches 15.5%, bark 11.2% and leaf 4.7%. The leaves showed higher contents of N, Ca and Mg (23.0; 29.7 e 5.4 g kg-1, respectively) and the wood showed the lower contents (2,0; 1,3 e 0,6 g kg-1, respectively). The bark (0,5 e 3,6 g kg-1) got higher indexes of P and K, and the leaves (0,18 e 0,70 g kg-1, respectively) the lower indexes. The amount of N, P, K and Mg was higher in the wood due to its huge biomass. The bark showed a higher amount of Ca, 500.8 kg ha-1. Based on this, the wood harvest should be prioritized, considering the other fractions being in the system and cycling its nutrients for later rotations. |
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BIOMASS AND NUTRIENT IN AN Hovenia dulcis Thunb. STAND AT FEPAGRO FLORESTAS, SANTA MARIA, RSBiomassa e nutrientes em um povoamento de Hovenia dulcis Thunb., plantado na Fepagro florestas, Santa Maria, RS.nutrient cyclingforestationsustainabilityciclagem de nutrientesreflorestamentosustentabilidade.This study had as objective to estimate the above ground biomass production and the percentage distribution of its components and nutritious amount in an 18-year-old-Hovenia dulcis stand planted in Foundation of Agricultural Research (FEPAGRO), Santa Maria, RS. Through the sampling of four randomized plots, trees were distributed in four diametric classes, with size of 5,75 cm, in which the upper and the lower limit trees were cut down, as well at the medium limit trees. Considering the model lny = b0+b1.ln DAP+b2.ln h, and using 12 trees, the biomass from different components of the trees was estimated. The estimated biomass was 181.6 Mg ha-1, being distributed in the following order: wood 68.6%, branches 15.5%, bark 11.2% and leaf 4.7%. The leaves showed higher contents of N, Ca and Mg (23.0; 29.7 e 5.4 g kg-1, respectively) and the wood showed the lower contents (2,0; 1,3 e 0,6 g kg-1, respectively). The bark (0,5 e 3,6 g kg-1) got higher indexes of P and K, and the leaves (0,18 e 0,70 g kg-1, respectively) the lower indexes. The amount of N, P, K and Mg was higher in the wood due to its huge biomass. The bark showed a higher amount of Ca, 500.8 kg ha-1. Based on this, the wood harvest should be prioritized, considering the other fractions being in the system and cycling its nutrients for later rotations. O presente estudo objetivou estimar a produção da biomassa acima do solo, a distribuição percentual de seus componentes e a quantidade de nutrientes em um povoamento de Hovenia dulcis Thumb. aos 18 anos de idade, plantado em área da Fundação Estadual de Pesquisa Agropecuária (FEPAGRO Florestas), Santa Maria, RS, visando a fornecer indicações de manejo da floresta, com base em critério de exportação mínima de nutrientes. Partindo de uma amostragem baseada em quatro parcelas aleatoriamente distribuídas, distribuiu-se as árvores em quatro classes de diâmetro, com intervalo de 5,75 cm, de forma a abranger a amplitude dos dados levantados. Nessas classes, foram abatidas a árvore do limite inferior, superior e a árvore média da classe, para o povoamento. Pelo modelo lny = b0+b1.ln DAP+b2.ln h, utilizando-se as 12 árvores abatidas, estimou-se a biomassa dos diferentes componentes das árvores. A biomassa estimada alcançou 181,6 Mg ha-1, estando distribuída na seguinte ordem: madeira 68,6%, galhos (vivos e mortos) 15,5%, cascas 11,2% e folhas 4,7%. Essa última fração apresentou os maiores teores de N, Ca e Mg (23,0; 29,7 e 5,4 g kg-1 respectivamente), e a madeira os menores (2,0; 1,3 e 0,6 g kg-1 respectivamente). A casca (0,5 e 3,6 g kg-1) atingiu os maiores teores de P e K e as folhas (0,18 e 0,70 g kg-1 respectivamente) os menores. As quantidades de N, P, K e Mg foram maiores na madeira, em função da grande biomassa dessa fração. A casca apresentou a maior quantidade de Ca, 500,8 kg ha-1. Em função disso, a extração somente da madeira deve ser priorizada, com as demais frações ficando no sistema e ciclando seus nutrientes para as rotações posteriores.Universidade Federal de Santa Maria2008-03-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/51910.5902/19805098519Ciência Florestal; Vol. 18 No. 1 (2008); 27-37Ciência Florestal; v. 18 n. 1 (2008); 27-371980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/519/405Schumacher, Mauro ValdirBrun, Eleandro JoséIllana, Vinícius BorgesDissiuta, Stéfano IlhaAgne, Tiago Lealinfo:eu-repo/semantics/openAccess2017-05-11T13:52:11Zoai:ojs.pkp.sfu.ca:article/519Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-05-11T13:52:11Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
BIOMASS AND NUTRIENT IN AN Hovenia dulcis Thunb. STAND AT FEPAGRO FLORESTAS, SANTA MARIA, RS Biomassa e nutrientes em um povoamento de Hovenia dulcis Thunb., plantado na Fepagro florestas, Santa Maria, RS. |
title |
BIOMASS AND NUTRIENT IN AN Hovenia dulcis Thunb. STAND AT FEPAGRO FLORESTAS, SANTA MARIA, RS |
spellingShingle |
BIOMASS AND NUTRIENT IN AN Hovenia dulcis Thunb. STAND AT FEPAGRO FLORESTAS, SANTA MARIA, RS Schumacher, Mauro Valdir nutrient cycling forestation sustainability ciclagem de nutrientes reflorestamento sustentabilidade. |
title_short |
BIOMASS AND NUTRIENT IN AN Hovenia dulcis Thunb. STAND AT FEPAGRO FLORESTAS, SANTA MARIA, RS |
title_full |
BIOMASS AND NUTRIENT IN AN Hovenia dulcis Thunb. STAND AT FEPAGRO FLORESTAS, SANTA MARIA, RS |
title_fullStr |
BIOMASS AND NUTRIENT IN AN Hovenia dulcis Thunb. STAND AT FEPAGRO FLORESTAS, SANTA MARIA, RS |
title_full_unstemmed |
BIOMASS AND NUTRIENT IN AN Hovenia dulcis Thunb. STAND AT FEPAGRO FLORESTAS, SANTA MARIA, RS |
title_sort |
BIOMASS AND NUTRIENT IN AN Hovenia dulcis Thunb. STAND AT FEPAGRO FLORESTAS, SANTA MARIA, RS |
author |
Schumacher, Mauro Valdir |
author_facet |
Schumacher, Mauro Valdir Brun, Eleandro José Illana, Vinícius Borges Dissiuta, Stéfano Ilha Agne, Tiago Leal |
author_role |
author |
author2 |
Brun, Eleandro José Illana, Vinícius Borges Dissiuta, Stéfano Ilha Agne, Tiago Leal |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Schumacher, Mauro Valdir Brun, Eleandro José Illana, Vinícius Borges Dissiuta, Stéfano Ilha Agne, Tiago Leal |
dc.subject.por.fl_str_mv |
nutrient cycling forestation sustainability ciclagem de nutrientes reflorestamento sustentabilidade. |
topic |
nutrient cycling forestation sustainability ciclagem de nutrientes reflorestamento sustentabilidade. |
description |
This study had as objective to estimate the above ground biomass production and the percentage distribution of its components and nutritious amount in an 18-year-old-Hovenia dulcis stand planted in Foundation of Agricultural Research (FEPAGRO), Santa Maria, RS. Through the sampling of four randomized plots, trees were distributed in four diametric classes, with size of 5,75 cm, in which the upper and the lower limit trees were cut down, as well at the medium limit trees. Considering the model lny = b0+b1.ln DAP+b2.ln h, and using 12 trees, the biomass from different components of the trees was estimated. The estimated biomass was 181.6 Mg ha-1, being distributed in the following order: wood 68.6%, branches 15.5%, bark 11.2% and leaf 4.7%. The leaves showed higher contents of N, Ca and Mg (23.0; 29.7 e 5.4 g kg-1, respectively) and the wood showed the lower contents (2,0; 1,3 e 0,6 g kg-1, respectively). The bark (0,5 e 3,6 g kg-1) got higher indexes of P and K, and the leaves (0,18 e 0,70 g kg-1, respectively) the lower indexes. The amount of N, P, K and Mg was higher in the wood due to its huge biomass. The bark showed a higher amount of Ca, 500.8 kg ha-1. Based on this, the wood harvest should be prioritized, considering the other fractions being in the system and cycling its nutrients for later rotations. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-03-30 |
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/519 10.5902/19805098519 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/519 |
identifier_str_mv |
10.5902/19805098519 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/519/405 |
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 de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 18 No. 1 (2008); 27-37 Ciência Florestal; v. 18 n. 1 (2008); 27-37 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 |
_version_ |
1789434742953738240 |