Efeitos econômicos de diferentes programas de desbaste em povoamentos de pinus elliottii
The effect of different thinning programs (light thinning, medium and heavy thinning) on the internal rate of return was studied in stands of Pinus elliottii. The sampled stands were planted in 1976 with an inicial spacing of 2 x 2 m. Thinning intensity was expressed by the stand density index of...
| Main Authors: | , |
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| Format: | Article |
| Language: | Portuguese |
| Published: |
Universidade Federal de Santa Maria
2000-01-01
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| Series: | Ciência Florestal |
| Online Access: | http://www.redalyc.org/articulo.oa?id=53400102 |
| _version_ | 1819238340973559808 |
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| author | Peter Spathelf Irene Seling |
| author_facet | Peter Spathelf Irene Seling |
| author_sort | Peter Spathelf |
| collection | DOAJ |
| description | The effect of different thinning programs (light thinning, medium and heavy thinning) on the
internal rate of return was studied in stands of Pinus elliottii. The sampled stands were planted in
1976 with an inicial spacing of 2 x 2 m. Thinning intensity was expressed by the stand density index
of Reinecke (SDI). Thinned volume was determined using the assortment tables of
SCHNEIDER & OESTEN (1991) and costs/prices of the year 1998 of the Association of Forest
Enterprises of Rio Grande do Sul (AGEFLOR). The highest internal rate of return was obtained with
a light thinning with a rotation length of 15 years and an initial density of 2500 trees. The lowest
internal rate of return resulted from a light thinning, but in 45 years and with an initial density of
1500 trees. In general, the internal rate of return diminished with increasing rotation length. A sensitivity analysis showed that timber price was the most sensitive variable to influence
profitability. |
| first_indexed | 2024-12-23T13:34:41Z |
| format | Article |
| id | doaj.art-2b0e1f40c71f4ee99dc78eccdd7f41c5 |
| institution | Directory Open Access Journal |
| issn | 0103-9954 1980-5098 |
| language | Portuguese |
| last_indexed | 2024-12-23T13:34:41Z |
| publishDate | 2000-01-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Florestal |
| spelling | doaj.art-2b0e1f40c71f4ee99dc78eccdd7f41c52022-12-21T17:45:03ZporUniversidade Federal de Santa MariaCiência Florestal0103-99541980-50982000-01-011012144Efeitos econômicos de diferentes programas de desbaste em povoamentos de pinus elliottiiPeter SpathelfIrene SelingThe effect of different thinning programs (light thinning, medium and heavy thinning) on the internal rate of return was studied in stands of Pinus elliottii. The sampled stands were planted in 1976 with an inicial spacing of 2 x 2 m. Thinning intensity was expressed by the stand density index of Reinecke (SDI). Thinned volume was determined using the assortment tables of SCHNEIDER & OESTEN (1991) and costs/prices of the year 1998 of the Association of Forest Enterprises of Rio Grande do Sul (AGEFLOR). The highest internal rate of return was obtained with a light thinning with a rotation length of 15 years and an initial density of 2500 trees. The lowest internal rate of return resulted from a light thinning, but in 45 years and with an initial density of 1500 trees. In general, the internal rate of return diminished with increasing rotation length. A sensitivity analysis showed that timber price was the most sensitive variable to influence profitability.http://www.redalyc.org/articulo.oa?id=53400102 |
| spellingShingle | Peter Spathelf Irene Seling Efeitos econômicos de diferentes programas de desbaste em povoamentos de pinus elliottii Ciência Florestal |
| title | Efeitos econômicos de diferentes programas de desbaste em
povoamentos de pinus elliottii |
| title_full | Efeitos econômicos de diferentes programas de desbaste em
povoamentos de pinus elliottii |
| title_fullStr | Efeitos econômicos de diferentes programas de desbaste em
povoamentos de pinus elliottii |
| title_full_unstemmed | Efeitos econômicos de diferentes programas de desbaste em
povoamentos de pinus elliottii |
| title_short | Efeitos econômicos de diferentes programas de desbaste em
povoamentos de pinus elliottii |
| title_sort | efeitos economicos de diferentes programas de desbaste em povoamentos de pinus elliottii |
| url | http://www.redalyc.org/articulo.oa?id=53400102 |
| work_keys_str_mv | AT peterspathelf efeitoseconomicosdediferentesprogramasdedesbasteempovoamentosdepinuselliottii AT ireneseling efeitoseconomicosdediferentesprogramasdedesbasteempovoamentosdepinuselliottii |