Growth and population structure of timber species in Peruvian Amazon flood plains

Nebel, Gustav; Meilby, Henrik

doi:10.1016/j.foreco.2005.05.017

Cited by 18 publications

(21 citation statements)

References 49 publications

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“…For centuries, the Amazonian floodplains have been used and settled by a human population of high density that carried out agriculture, pasture, fishing and hunting, as well as the extraction of timber and non-timber products (Nebel and Meilby 2005;Schöngart et al 2007) and floodplain forests are one of the most threatened forest ecosystems in the Amazon. One of the biggest obstacles in the sustained management of tropical forests is obtaining reliable data on the growth and yield of trees.…”

Section: Discussionmentioning

confidence: 99%

“…Achieving sustainable yields requires species-specific management of timber resources, in which the different growth strategies of tree species and the varying site conditions are considered. Unfortunately, species-specific and site-specific management criteria based on wood growth data in the tropics are quite rare (Stahle et al 1999;Schwartz et al 2002;Sokpon and Biaou 2002;Nebel and Meilby 2005;Schöngart et al 2008). For Amazonian forests, the restrictions in felling cycles and MLDs established in IN number 5 of IBAMA are estimations which are not derived from scientific data.…”

Section: Discussionmentioning

confidence: 99%

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Wood growth of Tabebuia barbata (E. Mey.) Sandwith (Bignoniaceae) and Vatairea guianensis Aubl. (Fabaceae) in Central Amazonian black-water (igapó) and white-water (várzea) floodplain forests

Júnior

Piedade

Schöngart

2008

Trees

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Tree growth is a fundamental indicator for conservation plans of Amazonian floodplain forests. In this study we use dendrochronology to analyze wood growth patterns of Tabebuia barbata and Vatairea guianensis, two tree species occurring in nutrient-rich white-water (várzea, Mamirauá Sustainable Development Reserve, MSDR) and nutrient-poor black-water (igapó, Amanã Sustainable Development Reserve, ASDR) floodplain forests of Central Amazonia. From 20 trees per species and floodplain system (total of 80 trees) growing under a similar flooding regime with a mean inundation height of about 4 m we measured diameter at breast height (dbh). We sampled two cores per tree with an increment corer at the height of dbh to determine wood density (WD), tree age and mean radial increment (MRI) rates. The wood samples were macroscopically analyzed. Both tree species show distinct annual tree rings characterized by marginal parenchyma tissues. MRI was measured by a digital measuring device and WD was determined by the ratio dry mass/fresh volume. MRI of both tree species was significantly higher in the várzea than in the igapó, which can be traced back to the contrasting nutrient status. WD showed no difference comparing both floodplain forest types. Tree ages of a species for the same diameter are more than twofold higher in the igapó than in the várzea. To insure a sustainable harvest, felling cycles in these forests should be adjusted according to rates of growth.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Wood growth of Tabebuia barbata (E. Mey.) Sandwith (Bignoniaceae) and Vatairea guianensis Aubl. (Fabaceae) in Central Amazonian black-water (igapó) and white-water (várzea) floodplain forests

Júnior

Piedade

Schöngart

2008

Trees

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“…Diameter Increment Modeling in an Araucaria Forest... Floresta e Ambiente 2018; 25(3): e20170625 presented in this research, with low coefficient of determination and high standard errors of estimation Palahí & Grau, 2003;Phillips et al, 2004;Della-Flora et al, 2004;Nebel & Meilby, 2005;Bueno & Bevilacqua, 2010;Stepka et al, 2012).…”

Section: /12mentioning

confidence: 70%

“…Several studies have been developed aiming to model diametric increment or the basal area, based on the dimensional and sociological tree variables, site index and competition (Vanclay, 1991;Chai & Lemay, 1993;Palahí & Grau, 2003;Della-Flora et al, 2004;Phillips et al, 2004;Nebel & Meilby, 2005;Rossi, 2007;Stepka et al, 2012). However, the results obtained were not particularly satisfactory due to the low performance of these models' fit.…”

Section: Introductionmentioning

confidence: 99%

Diameter Increment Modeling in an Araucaria Forest Fragment Using Cluster Analysis

et al. 2018

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The aims of the present study were to test the hypothesis that data stratification by cluster analysis and the use of other variables, in addition to DBH, can improve the precision of the estimates in diametric increment modeling for Mixed Ombrophilous Forest species. The study was carried out in the Irati National Forest. Data from 25 permanent sample plots of 1 ha each were used with all individuals presenting DBH equal to or greater than 10 cm being identified and measured. The increment modeling was performed for the whole forest (non-stratified data), ecological groups and species subgroups (stratified data) defined by cluster analysis. DBH presented a low correlation with the diametric increment and the use of other independent variables had a positive effect on the fitting, reducing the standard error of estimate and increasing the coefficient of determination. The data stratification did not make the models suitable to estimate the diametric increment; however, it provided improvements by reducing the standard error of estimate, suggesting that this technique can be better applied in the search for improvements to diametric modeling in natural forests.

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“…Além disso, a vegetação secundária é parte integral da vida das comunidades da Amazônia (índios, ribeirinhos, seringueiros) desde milhares de anos, como fonte de alimento, medicina e matéria prima de vários produtos (NEBEL;MELBY, 2005).…”

Section: Introductionunclassified

Análise de similaridade das árvores de Cedrela sp. sob diferentes condições de crescimento no leste do estado do Acre, Brasil

Lobão¹,

Ortega²,

Amaral³

et al. 2016

Sci. For.

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Growth and population structure of timber species in Peruvian Amazon flood plains

Cited by 18 publications

References 49 publications

Wood growth of Tabebuia barbata (E. Mey.) Sandwith (Bignoniaceae) and Vatairea guianensis Aubl. (Fabaceae) in Central Amazonian black-water (igapó) and white-water (várzea) floodplain forests

Wood growth of Tabebuia barbata (E. Mey.) Sandwith (Bignoniaceae) and Vatairea guianensis Aubl. (Fabaceae) in Central Amazonian black-water (igapó) and white-water (várzea) floodplain forests

Diameter Increment Modeling in an Araucaria Forest Fragment Using Cluster Analysis

Análise de similaridade das árvores de Cedrela sp. sob diferentes condições de crescimento no leste do estado do Acre, Brasil

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