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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
05/02/2014 |
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Data da última atualização: |
05/02/2014 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CAVA, M.; ISERNHAGEN, I.; GUERIN, N.; DURIGAN, G. |
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Afiliação: |
INGO ISERNHAGEN, CPAMT. |
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Título: |
Large-scale ecological restoration of the Cerrado in Amazon region, Brazil |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: WORLD CONFERENCE ON ECOLOGICAL RESTORATION, 5., 2013, Madison. Book of Abstratcts... Madison, USA: Society for Ecological Restoration, 2013. |
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Idioma: |
Português |
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Conteúdo: |
One of the most important obstacles in large-scale ecological restoration relies on the high costs of current practices of planting nursery raised tree
seedlings. Finding less expensive and ecologically viable restoration has been a challenge for scientists. We compared three techniques aiming at Cerrado
restoration in the Amazon region, Brazil: passive restoration (T1 ? abandonment) and mechanized direct seeding of native trees and legume species in
rows (T2), or broadcast (T3) (four replications each, 0.24 ha per plot). The experimental area was deforested by the 1980s and used mainly as pasture
for about 25 years, and a native forest fragment remains close to the study site. Density and richness of the woody plant community (from 50 cm in
height) has been used as indicators of restoration efficacy. At 12 months after planting, a total of 1,004 individuals of 61 species were recorded in the
survey plots (a total of 720 m²). Among these species, 14 had been seeded and the other 47 entered the community by natural regeneration processes
(resprouting or by seed rain). Neither the plant density (F = 0.53; df = 2; P > 0.05) nor the species richness (F = 2.1; df = 2; P > 0.05) differed
among the three techniques. Considering that passive restoration has no costs and its efficacy does not differ from the direct seeding, we concluded that
abandonment is the best solution to recover the highly resilient Cerrado vegetation under environmental conditions similar to the experimental area. MenosOne of the most important obstacles in large-scale ecological restoration relies on the high costs of current practices of planting nursery raised tree
seedlings. Finding less expensive and ecologically viable restoration has been a challenge for scientists. We compared three techniques aiming at Cerrado
restoration in the Amazon region, Brazil: passive restoration (T1 ? abandonment) and mechanized direct seeding of native trees and legume species in
rows (T2), or broadcast (T3) (four replications each, 0.24 ha per plot). The experimental area was deforested by the 1980s and used mainly as pasture
for about 25 years, and a native forest fragment remains close to the study site. Density and richness of the woody plant community (from 50 cm in
height) has been used as indicators of restoration efficacy. At 12 months after planting, a total of 1,004 individuals of 61 species were recorded in the
survey plots (a total of 720 m²). Among these species, 14 had been seeded and the other 47 entered the community by natural regeneration processes
(resprouting or by seed rain). Neither the plant density (F = 0.53; df = 2; P > 0.05) nor the species richness (F = 2.1; df = 2; P > 0.05) differed
among the three techniques. Considering that passive restoration has no costs and its efficacy does not differ from the direct seeding, we concluded that
abandonment is the best solution to recover the highly resilient Cerrado vegetation under environmental conditions similar to the exper... Mostrar Tudo |
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Thesaurus Nal: |
ecological restoration. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02080nam a2200157 a 4500
001 1978778
005 2014-02-05
008 2013 bl uuuu u01u1 u #d
100 1 $aCAVA, M.
245 $aLarge-scale ecological restoration of the Cerrado in Amazon region, Brazil$h[electronic resource]
260 $aIn: WORLD CONFERENCE ON ECOLOGICAL RESTORATION, 5., 2013, Madison. Book of Abstratcts... Madison, USA: Society for Ecological Restoration$c2013
520 $aOne of the most important obstacles in large-scale ecological restoration relies on the high costs of current practices of planting nursery raised tree seedlings. Finding less expensive and ecologically viable restoration has been a challenge for scientists. We compared three techniques aiming at Cerrado restoration in the Amazon region, Brazil: passive restoration (T1 ? abandonment) and mechanized direct seeding of native trees and legume species in rows (T2), or broadcast (T3) (four replications each, 0.24 ha per plot). The experimental area was deforested by the 1980s and used mainly as pasture for about 25 years, and a native forest fragment remains close to the study site. Density and richness of the woody plant community (from 50 cm in height) has been used as indicators of restoration efficacy. At 12 months after planting, a total of 1,004 individuals of 61 species were recorded in the survey plots (a total of 720 m²). Among these species, 14 had been seeded and the other 47 entered the community by natural regeneration processes (resprouting or by seed rain). Neither the plant density (F = 0.53; df = 2; P > 0.05) nor the species richness (F = 2.1; df = 2; P > 0.05) differed among the three techniques. Considering that passive restoration has no costs and its efficacy does not differ from the direct seeding, we concluded that abandonment is the best solution to recover the highly resilient Cerrado vegetation under environmental conditions similar to the experimental area.
650 $aecological restoration
700 1 $aISERNHAGEN, I.
700 1 $aGUERIN, N.
700 1 $aDURIGAN, G.
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