Crescimento do louro-pardo, Cordia trichotoma (Vell.) Arrab. ex Steud., na depressã o central do estado do Rio Grande do Sul
This work had as objectives the study of the growth in DBH, commercial volume, average of annual increment in percentage of the commercial volume and the determination of the commercial form factor for Cordia trichotoma (Vell.) Arrab. ex steud., in the Central Depression of the Rio Grande do Sul S...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Portuguese |
| Published: |
Universidade Federal de Santa Maria
2002-01-01
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| Series: | Ciência Florestal |
| Online Access: | http://www.redalyc.org/articulo.oa?id=53412218 |
| Summary: | This work had as objectives the study of the growth in DBH, commercial volume, average of annual
increment in percentage of the commercial volume and the determination of the commercial form factor for
Cordia trichotoma (Vell.) Arrab. ex steud., in the Central Depression of the Rio Grande do Sul State. The
growth data were tested with three mathematical equations, for the adjustment of diameter and commercial
volume without bark. The Backman equation resulted as the most efficient model, adjusted in function of
the age of the trees. This equation also was selected for the adjustment of the average annual increment in
percentage of the commercial volume, adjusted in function of DBH. For the commercial form factor the
best equation was the quadratic and the values were determined in function of the DBH to facilitate the
practical application. The commercial form factor varied from 0,34 for a DBH of 7 cm to a maximum value
of 0,78 for a DBH around 37,1 cm, at the ages of 20 and 88 years respectively. The current annual increment
in percentage of the commercial volume varied from 18,05% for 20 years to 2,22% for 88 years of age. |
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| ISSN: | 0103-9954 1980-5098 |