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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas; Embrapa Pantanal. |
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Data corrente: |
30/08/1991 |
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Data da última atualização: |
25/08/2009 |
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Autoria: |
SOARES, R. V. |
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Título: |
The use of prescribed fire in forest management in the State of Parana, Brazil. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
1977. |
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Páginas: |
203 p. |
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Idioma: |
Inglês |
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Notas: |
Dissertation (Doctor of Philosophy) - University of Washington. |
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Conteúdo: |
A main concert about using fire in forest managemet in the effect thatburning might have upon the envoroment.In order to test the hypotesis that prescribe fire could be used as a management tool in Parana State, a review of the pescribe fire effects on several regions troughout the world was done.The review was, as much as posible, matched aganist theenviromental conditions of Parana. Results from this comparative analysis indicate that prescribe fire can be used of fire are expected to outweigh any eventual damage to the environment. Most soils used for reforestation in Parana are acid and poor in nutrients.The use of pescribed burning rather than damaging the soil would possibly bring about twoimmediate benifitis: reduce acidity and recicle nitrients. Organic matter prior to mineralization is not avaiable to plants and are only important as a nutrient reserve for the distant future. Some nutrientes maybe lost by leaching after a fire, but these losses may be compensated for may be lost leaching after fire, but these lots of a considerable quantity of available nutrients. Even though no fire should be pescribe to improve soil fertility,the use of fire for other purposes probably will be more benenficial than harmful to the those soils. Highly erodable soils on steep slopes could be damaged by the use of prescribe burning and fire should not be on such areas.The efect of fire on soil depends primarily on the fire. Extremely intense long lasting fires can severely danage soils of different types. On prescribed fires,however,the intensity can be controlled by proper prescription and firing techiniques. Besides the direct beneficial effects to the soil, prescribed fire would decrease the chance of a not hot wildfire occurrence, wich wolud be harmful to the soil. Prescribed fire is one of reducing the accumulation of fuel in forest areas. Even thought there are other means of reducing fuel acculmulation, fire should be a preferred treatment because of its low cost,comparatibly with other land-use objectives and compatibily of accomnplishing several management obljectives at one time. The planted forests in Parana have accimulated large amounts of fuel. On pine yers old.After the first thining operation, a 7 years-old slash or loblolly pine stand presents aproximately 15.3 tons of total fuel per hactare. A wildfire burning on such conditions would certainly destroy the plantation. Even thoght there is no means to calculate the fuel per hectare.A wildifire burning on such conditions would certainly destroy the plantation. Prescribed burning seems to be the best alternative to alleviate the problem of fuel accumulation in planted forests in Parana. The principal forest types planted in Parana region are fireresistant after the trees are about 6 meters high.Therefore they can support a mild backfire for a first fuel reduction. After the first fuelreduction, interval between burns should be determined according to thefuel reduction, be interval between burns should be determined according to the fuel reduction, be interval between burns to the fuel acumulation and other firing techiniques may be used.The old natural stands of Brazilian pine, the most important natural species in the coutry, are being gradually replaced by hardwoods because there is no satisfactory natural regeneration of the species nder present conditions.The comparative analysis used here indicates that Brazilian pine probably is a sereal species that needs some disturbance to regenerate and perpetue itself, prescribed fire is a disturbance that could succional trend toward the hardwood climax, favoring the continuance of the Braziliam pine is a fire resistant species in its juvenal and adult stages. Site preparation,improvement of wildlife habitat,control of parasites and diseases,control of unwanted vegetation are some examples of other objectives that the compsarative analysis suggests could be accomplished with the use of carefully planned prescribed fire. Prescribed burning is not intendend to replace or displace orthodox protetion. Prescribed fire has its limitations and even a strong prescribed fire program cannot completely eliminate the risk of wildfire occurrences. Traditional wildfire protection is to be continued troughout the State of Parana. The estimation of fire protection budget however,could be done in more analytical basis rether than relying only on experience and julgement of pastpolicies. A suggestion for budget estimation and resorce allocation based on the value of the forest and the potential wildfire risk in the area is developed in the Appendix I. The results presented here the first step or the basis for prescribed fire program in the State of Parana. Theoretically, the use of prescribed fire aimed to achieve certain forest management goals in the region is perfectly viable.The next step on the program should be fiel reserch.Some experimental burns should be carried out on stands where fire could help in achieving some management goals, like fuel reduction for example. Prescriptions for those burns would be writhen important to minimize the risk of damage or losing control of the fires. The first burns sould be carried out on sites where fuel loading is not experimental burns is important in determining the feasibility and practicality of the third step, the use ofprescribed burning in large scale consist only in checking wether the prescriptions were met but also in observing post-effects of fire on soil and vegetation. MenosA main concert about using fire in forest managemet in the effect thatburning might have upon the envoroment.In order to test the hypotesis that prescribe fire could be used as a management tool in Parana State, a review of the pescribe fire effects on several regions troughout the world was done.The review was, as much as posible, matched aganist theenviromental conditions of Parana. Results from this comparative analysis indicate that prescribe fire can be used of fire are expected to outweigh any eventual damage to the environment. Most soils used for reforestation in Parana are acid and poor in nutrients.The use of pescribed burning rather than damaging the soil would possibly bring about twoimmediate benifitis: reduce acidity and recicle nitrients. Organic matter prior to mineralization is not avaiable to plants and are only important as a nutrient reserve for the distant future. Some nutrientes maybe lost by leaching after a fire, but these losses may be compensated for may be lost leaching after fire, but these lots of a considerable quantity of available nutrients. Even though no fire should be pescribe to improve soil fertility,the use of fire for other purposes probably will be more benenficial than harmful to the those soils. Highly erodable soils on steep slopes could be damaged by the use of prescribe burning and fire should not be on such areas.The efect of fire on soil depends primarily on the fire. Extremely intense long lasting fires can severely danage s... Mostrar Tudo |
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Palavras-Chave: |
Ecosystem; Efeito; Fire; Forest; Magagement; Management; Parana. |
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Thesagro: |
Agronomia; Ecossistema; Floresta; Fogo; Incêndio Florestal; Manejo; Queimada; Vegetação. |
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Thesaurus Nal: |
agriculture; agronomy; Brazil; forest fires; vegetation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 06436nam a2200373 a 4500
001 1305493
005 2009-08-25
008 1977 bl uuuu m 00u1 u #d
100 1 $aSOARES, R. V.
245 $aThe use of prescribed fire in forest management in the State of Parana, Brazil.
260 $a1977.$c1977
300 $a203 p.
500 $aDissertation (Doctor of Philosophy) - University of Washington.
520 $aA main concert about using fire in forest managemet in the effect thatburning might have upon the envoroment.In order to test the hypotesis that prescribe fire could be used as a management tool in Parana State, a review of the pescribe fire effects on several regions troughout the world was done.The review was, as much as posible, matched aganist theenviromental conditions of Parana. Results from this comparative analysis indicate that prescribe fire can be used of fire are expected to outweigh any eventual damage to the environment. Most soils used for reforestation in Parana are acid and poor in nutrients.The use of pescribed burning rather than damaging the soil would possibly bring about twoimmediate benifitis: reduce acidity and recicle nitrients. Organic matter prior to mineralization is not avaiable to plants and are only important as a nutrient reserve for the distant future. Some nutrientes maybe lost by leaching after a fire, but these losses may be compensated for may be lost leaching after fire, but these lots of a considerable quantity of available nutrients. Even though no fire should be pescribe to improve soil fertility,the use of fire for other purposes probably will be more benenficial than harmful to the those soils. Highly erodable soils on steep slopes could be damaged by the use of prescribe burning and fire should not be on such areas.The efect of fire on soil depends primarily on the fire. Extremely intense long lasting fires can severely danage soils of different types. On prescribed fires,however,the intensity can be controlled by proper prescription and firing techiniques. Besides the direct beneficial effects to the soil, prescribed fire would decrease the chance of a not hot wildfire occurrence, wich wolud be harmful to the soil. Prescribed fire is one of reducing the accumulation of fuel in forest areas. Even thought there are other means of reducing fuel acculmulation, fire should be a preferred treatment because of its low cost,comparatibly with other land-use objectives and compatibily of accomnplishing several management obljectives at one time. The planted forests in Parana have accimulated large amounts of fuel. On pine yers old.After the first thining operation, a 7 years-old slash or loblolly pine stand presents aproximately 15.3 tons of total fuel per hactare. A wildfire burning on such conditions would certainly destroy the plantation. Even thoght there is no means to calculate the fuel per hectare.A wildifire burning on such conditions would certainly destroy the plantation. Prescribed burning seems to be the best alternative to alleviate the problem of fuel accumulation in planted forests in Parana. The principal forest types planted in Parana region are fireresistant after the trees are about 6 meters high.Therefore they can support a mild backfire for a first fuel reduction. After the first fuelreduction, interval between burns should be determined according to thefuel reduction, be interval between burns should be determined according to the fuel reduction, be interval between burns to the fuel acumulation and other firing techiniques may be used.The old natural stands of Brazilian pine, the most important natural species in the coutry, are being gradually replaced by hardwoods because there is no satisfactory natural regeneration of the species nder present conditions.The comparative analysis used here indicates that Brazilian pine probably is a sereal species that needs some disturbance to regenerate and perpetue itself, prescribed fire is a disturbance that could succional trend toward the hardwood climax, favoring the continuance of the Braziliam pine is a fire resistant species in its juvenal and adult stages. Site preparation,improvement of wildlife habitat,control of parasites and diseases,control of unwanted vegetation are some examples of other objectives that the compsarative analysis suggests could be accomplished with the use of carefully planned prescribed fire. Prescribed burning is not intendend to replace or displace orthodox protetion. Prescribed fire has its limitations and even a strong prescribed fire program cannot completely eliminate the risk of wildfire occurrences. Traditional wildfire protection is to be continued troughout the State of Parana. The estimation of fire protection budget however,could be done in more analytical basis rether than relying only on experience and julgement of pastpolicies. A suggestion for budget estimation and resorce allocation based on the value of the forest and the potential wildfire risk in the area is developed in the Appendix I. The results presented here the first step or the basis for prescribed fire program in the State of Parana. Theoretically, the use of prescribed fire aimed to achieve certain forest management goals in the region is perfectly viable.The next step on the program should be fiel reserch.Some experimental burns should be carried out on stands where fire could help in achieving some management goals, like fuel reduction for example. Prescriptions for those burns would be writhen important to minimize the risk of damage or losing control of the fires. The first burns sould be carried out on sites where fuel loading is not experimental burns is important in determining the feasibility and practicality of the third step, the use ofprescribed burning in large scale consist only in checking wether the prescriptions were met but also in observing post-effects of fire on soil and vegetation.
650 $aagriculture
650 $aagronomy
650 $aBrazil
650 $aforest fires
650 $avegetation
650 $aAgronomia
650 $aEcossistema
650 $aFloresta
650 $aFogo
650 $aIncêndio Florestal
650 $aManejo
650 $aQueimada
650 $aVegetação
653 $aEcosystem
653 $aEfeito
653 $aFire
653 $aForest
653 $aMagagement
653 $aManagement
653 $aParana
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Registro original: |
Embrapa Florestas (CNPF) |
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| Registros recuperados : 426 | |
| 22. |  | GODOY, C.; SOARES, R. Ranking de eficiência. Cultivar: grandes culturas, Pelotas, v. 10, n. 104, p. 20-22, jan. 2008. Nome corretos dos autores GODOY, C. V.; SOARES, R. M.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - C |
| Biblioteca(s): Embrapa Soja. |
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| 23. | | SOARES, R. M. Practical soybean rust identification. In: KUDO, H.; SUENAGA, K.; SOARES, R. M.; TOLEDO, A. (Ed.). Facing the challenge of soybean rust in South America. Tsukuba: JIRCAS; Londrina: Embrapa Soybean, 2008. p. 66-69. (JIRCAS Working Report, 58).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Soja. |
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| 24. | | SOARES, R. M. Variabilidade que mata. Cultivar grandes culturas, Pelotas, v. 18, n. 216, p. 34-36, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Soja. |
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| 28. | | SOARES, R. M.; LONIEN, G. Efeito do espaçamento entrelinhas no desenvolvimento e controle da ferrugem da soja. Fitopatologia Brasileira, Brasília, DF, v. 32, p. S256, ago. 2007. Suplemento, resumo 0734. Edição dos Resumos do XL Congresso Brasileiro de Fitopatologia, Maringá, PR, ago. 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
| Biblioteca(s): Embrapa Soja. |
|  |
| 34. | | SOARES, R. M.; COSTAMILAN, L. M. Apodreceu. Cultivar, Pelotas, v. 12, n. 135, p. 18-19, ago. 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Soja; Embrapa Trigo. |
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| Registros recuperados : 426 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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