MODELING OF THE COMMERCIAL VOLUME STOCK IN AN OMBROPHILOUS FOREST IN THE SOUTHWEST OF THE AMAZON
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| Format: | Artículo científico |
| Language: | en |
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Universidade Federal de Lavras
2016
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| author | Vinicius Costa Cysneiros |
| author_facet | Vinicius Costa Cysneiros |
| contents | MODELING OF THE COMMERCIAL VOLUME STOCK IN AN OMBROPHILOUS FOREST IN THE SOUTHWEST OF THE AMAZON Vinicius Costa Cysneiros Sebastião do Amaral Machado Allan Libanio Pelissari Afonso Figueiredo Filho Edilson Urbano Agrociencias Diversity Amazon forest Volume equations Forest structure The abundance of tree species in tropical rainforests with different shapes and dimensions, as well as the great structural diversity, makes difficult the employment of form factors or equations to estimate individual volumes. However, the employment of equations at the population level makes possible to predict the volumetric stock per unit of area from forest attributes, excluding the necessity of individual tree volume evaluation. Thereby, the aim of this study was to select variables, fit statistical models and propose stand equations to estimate total and exploitable commercial volumes in an Amazon forest under concession regime. For this, variables commonly measured, like density and basal area, were inserted on traditional commercial volume models; besides the application of variables that considered the diversity and forest structure on models generated by the Stepwise process. After analysis, it was observed that the models obtained through Stepwise propitiated more precise estimation of the volumetric stock, reducing estimation errors and reducing problems with heteroscedasticity of residuals. The insertion of variables that express diversity and forest structure on the equations, like Shannon’s and diametric variation indices and the commercial trees ratio, contribute to predictions’ improvement, especially for the exploitable commercial volume, being recommended for the precise evaluation of timber potential of areas under Amazon forest concession. 2016 artículo científico 0104-7760 https://www.redalyc.org/articulo.oa?id=74449753012 en http://www.redalyc.org/revista.oa?id=744 CERNE application/pdf Universidade Federal de Lavras CERNE (Brasil) Num.4 Vol.22 |
| format | Artículo científico |
| id | redalyc_74449753012 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Universidade Federal de Lavras |
| spellingShingle | MODELING OF THE COMMERCIAL VOLUME STOCK IN AN OMBROPHILOUS FOREST IN THE SOUTHWEST OF THE AMAZON Vinicius Costa Cysneiros Agrociencias Diversity Amazon forest Volume equations Forest structure MODELING OF THE COMMERCIAL VOLUME STOCK IN AN OMBROPHILOUS FOREST IN THE SOUTHWEST OF THE AMAZON Vinicius Costa Cysneiros Sebastião do Amaral Machado Allan Libanio Pelissari Afonso Figueiredo Filho Edilson Urbano Agrociencias Diversity Amazon forest Volume equations Forest structure The abundance of tree species in tropical rainforests with different shapes and dimensions, as well as the great structural diversity, makes difficult the employment of form factors or equations to estimate individual volumes. However, the employment of equations at the population level makes possible to predict the volumetric stock per unit of area from forest attributes, excluding the necessity of individual tree volume evaluation. Thereby, the aim of this study was to select variables, fit statistical models and propose stand equations to estimate total and exploitable commercial volumes in an Amazon forest under concession regime. For this, variables commonly measured, like density and basal area, were inserted on traditional commercial volume models; besides the application of variables that considered the diversity and forest structure on models generated by the Stepwise process. After analysis, it was observed that the models obtained through Stepwise propitiated more precise estimation of the volumetric stock, reducing estimation errors and reducing problems with heteroscedasticity of residuals. The insertion of variables that express diversity and forest structure on the equations, like Shannon’s and diametric variation indices and the commercial trees ratio, contribute to predictions’ improvement, especially for the exploitable commercial volume, being recommended for the precise evaluation of timber potential of areas under Amazon forest concession. 2016 artículo científico 0104-7760 https://www.redalyc.org/articulo.oa?id=74449753012 en http://www.redalyc.org/revista.oa?id=744 CERNE application/pdf Universidade Federal de Lavras CERNE (Brasil) Num.4 Vol.22 |
| title | MODELING OF THE COMMERCIAL VOLUME STOCK IN AN OMBROPHILOUS FOREST IN THE SOUTHWEST OF THE AMAZON |
| topic | Agrociencias Diversity Amazon forest Volume equations Forest structure |
| url | https://www.redalyc.org/articulo.oa?id=74449753012 |