ACCURACY OF THE DIAMETER DISTRIBUTION PREDICTION OF AN UNEVEN FOREST WITH THE TRANSITION MATRIX
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Cerne (Online) |
Texto Completo: | https://cerne.ufla.br/site/index.php/CERNE/article/view/510 |
Resumo: | This study had as main objective to evaluate the prognosis of the diameter structure utilising the transition matrix from three different measurement periods of the forest. It was also performed a comparation analysis of the prognosis generated through the transition matrix method with those obtained through the ratio of diameter movement method and the Wahlenberg’s method. The basic data were obtained from the forest reserve of the Federal University of Lavras. One hundred twenty six (126) 400 m2 plots were established in this forest. The measurements and evaluation were done in 1987m 1992 and 1996. The transition matrix method proved to be efficient for purpose of prognosticating diameter structure, independent from the measurement period, in spite of having been detected changes in the forest structure, particularly of the ingrowth and mortality rates. From the transition matrix, it was identified the existence of absorbent state in the data base. The methods of the transition matrix, ratio of diameter movement and Wahlemberg’s presented the same efficiency degree for prognosis purposes of the total number of trees. At the level of frequency by diameter class, these methods presented differentiated performance. The same fact was verified for the different evaluation periods. In this case, at least one of the methods was sensitive to changes in forest structure. |
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Cerne (Online) |
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ACCURACY OF THE DIAMETER DISTRIBUTION PREDICTION OF AN UNEVEN FOREST WITH THE TRANSITION MATRIXPrognosisnative foresttransition matrixratio of diameter movementWahlenberg’s methodThis study had as main objective to evaluate the prognosis of the diameter structure utilising the transition matrix from three different measurement periods of the forest. It was also performed a comparation analysis of the prognosis generated through the transition matrix method with those obtained through the ratio of diameter movement method and the Wahlenberg’s method. The basic data were obtained from the forest reserve of the Federal University of Lavras. One hundred twenty six (126) 400 m2 plots were established in this forest. The measurements and evaluation were done in 1987m 1992 and 1996. The transition matrix method proved to be efficient for purpose of prognosticating diameter structure, independent from the measurement period, in spite of having been detected changes in the forest structure, particularly of the ingrowth and mortality rates. From the transition matrix, it was identified the existence of absorbent state in the data base. The methods of the transition matrix, ratio of diameter movement and Wahlemberg’s presented the same efficiency degree for prognosis purposes of the total number of trees. At the level of frequency by diameter class, these methods presented differentiated performance. The same fact was verified for the different evaluation periods. In this case, at least one of the methods was sensitive to changes in forest structure.CERNECERNE2015-10-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/510CERNE; Vol. 5 No. 1 (1999); 001-014CERNE; v. 5 n. 1 (1999); 001-0142317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttps://cerne.ufla.br/site/index.php/CERNE/article/view/510/438Copyright (c) 2015 CERNEinfo:eu-repo/semantics/openAccessPulz, Frederico AparecidoScolforo, José RobertoOliveira, Antônio Donizette deMello, José Márcio deFilho, Ary Teixeira de Oliveira2015-10-22T08:38:51Zoai:cerne.ufla.br:article/510Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2024-05-21T19:53:55.796370Cerne (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
ACCURACY OF THE DIAMETER DISTRIBUTION PREDICTION OF AN UNEVEN FOREST WITH THE TRANSITION MATRIX |
title |
ACCURACY OF THE DIAMETER DISTRIBUTION PREDICTION OF AN UNEVEN FOREST WITH THE TRANSITION MATRIX |
spellingShingle |
ACCURACY OF THE DIAMETER DISTRIBUTION PREDICTION OF AN UNEVEN FOREST WITH THE TRANSITION MATRIX Pulz, Frederico Aparecido Prognosis native forest transition matrix ratio of diameter movement Wahlenberg’s method |
title_short |
ACCURACY OF THE DIAMETER DISTRIBUTION PREDICTION OF AN UNEVEN FOREST WITH THE TRANSITION MATRIX |
title_full |
ACCURACY OF THE DIAMETER DISTRIBUTION PREDICTION OF AN UNEVEN FOREST WITH THE TRANSITION MATRIX |
title_fullStr |
ACCURACY OF THE DIAMETER DISTRIBUTION PREDICTION OF AN UNEVEN FOREST WITH THE TRANSITION MATRIX |
title_full_unstemmed |
ACCURACY OF THE DIAMETER DISTRIBUTION PREDICTION OF AN UNEVEN FOREST WITH THE TRANSITION MATRIX |
title_sort |
ACCURACY OF THE DIAMETER DISTRIBUTION PREDICTION OF AN UNEVEN FOREST WITH THE TRANSITION MATRIX |
author |
Pulz, Frederico Aparecido |
author_facet |
Pulz, Frederico Aparecido Scolforo, José Roberto Oliveira, Antônio Donizette de Mello, José Márcio de Filho, Ary Teixeira de Oliveira |
author_role |
author |
author2 |
Scolforo, José Roberto Oliveira, Antônio Donizette de Mello, José Márcio de Filho, Ary Teixeira de Oliveira |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Pulz, Frederico Aparecido Scolforo, José Roberto Oliveira, Antônio Donizette de Mello, José Márcio de Filho, Ary Teixeira de Oliveira |
dc.subject.por.fl_str_mv |
Prognosis native forest transition matrix ratio of diameter movement Wahlenberg’s method |
topic |
Prognosis native forest transition matrix ratio of diameter movement Wahlenberg’s method |
description |
This study had as main objective to evaluate the prognosis of the diameter structure utilising the transition matrix from three different measurement periods of the forest. It was also performed a comparation analysis of the prognosis generated through the transition matrix method with those obtained through the ratio of diameter movement method and the Wahlenberg’s method. The basic data were obtained from the forest reserve of the Federal University of Lavras. One hundred twenty six (126) 400 m2 plots were established in this forest. The measurements and evaluation were done in 1987m 1992 and 1996. The transition matrix method proved to be efficient for purpose of prognosticating diameter structure, independent from the measurement period, in spite of having been detected changes in the forest structure, particularly of the ingrowth and mortality rates. From the transition matrix, it was identified the existence of absorbent state in the data base. The methods of the transition matrix, ratio of diameter movement and Wahlemberg’s presented the same efficiency degree for prognosis purposes of the total number of trees. At the level of frequency by diameter class, these methods presented differentiated performance. The same fact was verified for the different evaluation periods. In this case, at least one of the methods was sensitive to changes in forest structure. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-06 |
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://cerne.ufla.br/site/index.php/CERNE/article/view/510 |
url |
https://cerne.ufla.br/site/index.php/CERNE/article/view/510 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/510/438 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 CERNE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 CERNE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CERNE CERNE |
publisher.none.fl_str_mv |
CERNE CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol. 5 No. 1 (1999); 001-014 CERNE; v. 5 n. 1 (1999); 001-014 2317-6342 0104-7760 reponame:Cerne (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Cerne (Online) |
collection |
Cerne (Online) |
repository.name.fl_str_mv |
Cerne (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
cerne@dcf.ufla.br||cerne@dcf.ufla.br |
_version_ |
1799874941002186752 |