Loading...
Please wait, while we are loading the content...
Similar Documents
RELAÇÕES MORFOMÉTRICAS PARA Araucaria angustifolia (Bertol.) Kuntze EM SANTA CATARINA
| Content Provider | Semantic Scholar |
|---|---|
| Author | Klein, Danieli Regina Hess, André Felipe Krefta, Sandra Mara Filho, Mushue Dayan Hampel Vieira Ciarnoscki, Lucas Dalmolin Costa, Emanuel Arnoni |
| Copyright Year | 2017 |
| Abstract | Conhecer a morfometria de uma especie e descrever suas relacoes auxilia no planejamento e uso sustentavel da floresta. O trabalho objetivou analisar relacoes morfometricas, a fim de ajustar modelos que representem 121 arvores de Araucaria angustifolia amostradas em dois sitios em Sao Jose do Cerrito, Planalto Catarinense. Foram mensurados: diâmetro a altura do peito (Dap), altura (h), altura de insercao de copa (hic), raio de copa (rc), comprimento de copa (cc), diâmetro de copa (dc), indice de abrangencia (IA), indice de saliencia (IS), grau de esbeltez (GE), formal de copa (FC), proporcao de copa (Pc%) e a posicao sociologica (PS) de cada individuo. Foi usada correlacao de Person para avaliar as relacoes entre variaveis morfometricas. Empregou-se a analise de covariância para verificar diferenca de nivel e inclinacao nos ajustes dos modelos para os sitios. O ajuste dos modelos foi realizado pelos modelos lineares generalizados (MLG) nos campos de distribuicao gama e normal, funcao de ligacao identidade e logaritmica para correlacoes maiores ou iguais a 0,7. A analise de covariância demonstrou diferencas nas relacoes para cada sitio, indicando o ajuste de equacoes distintas. As equacoes demonstraram variacoes nas relacoes morfometricas pela mudanca forma-dimensao de cada arvore. Os resultados mostram a modificacao na forma da copa, a partir da posicao social de cada arvore, alem da influencia diametrica e do espaco ocupado por cada arvore na floresta, competicao e condicoes do sitio. As relacoes morfometricas estabelecidas foram importantes para explicar a dinâmica de crescimento da especie e a aplicacao de intervencoes silviculturais. Palavras-chave: morfometria, modelagem, manejo florestal. Abstract Morphometric relations for Araucaria angustifolia (Bertol.) Kuntze in Santa Catarina, Brazil. Knowing the morphometry of a species and describing its relations help us in the planning and in the sustainable use of the forest. The objective of this study was to analyze morphometric relationships in order to fit models representing 121 Araucaria angustifolia trees sampled at two sites in Sao Jose do Cerrito, Planalto Catarinense. The measures were: diameter at breast height (Dap), height (h), crown insertion height (hic), crown radius (rc), crown length (cc), crown diameter (dc), slenderness index (IS), degree of slenderness (GE), formal cup (HR), crown ratio (Pc%) and sociological position (PS) of each individual. Person correlation was used to evaluate the relationships between morphometric variables. The covariance analysis was used to verify difference of level and slope in the adjustments of the models for the sites. The fit of the models was done by generalized linear models (MLG) in the gamma and normal distribution fields, identity and logarithmic link function for correlations greater than or equal to 0.7. The covariance analysis showed differences in the relations for each site, indicating the adjustment of different equations. The equations showed variations in morphometric relationships due to the shape-dimension change of each tree. The results show the modification in the shape of the canopy, from the social position of each tree, besides the diametrical influence and the space occupied by each tree in the forest, competition and site conditions. The established morphometric relationships were important to explain the growth dynamics of the species and the application of silvicultural interventions. Keywords: morphometry, modeling, forest management. |
| Starting Page | 501 |
| Ending Page | 512 |
| Page Count | 12 |
| File Format | PDF HTM / HTML |
| DOI | 10.5380/rf.v47i4.49667 |
| Volume Number | 47 |
| Alternate Webpage(s) | https://revistas.ufpr.br/floresta/article/download/49667/34374 |
| Alternate Webpage(s) | https://doi.org/10.5380/rf.v47i4.49667 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
