Artigo

Development of the soil macrofauna community under silvopastoral and agrosilvicultural systems in Amazonia

In the Brazilian Amazon region, millions of hectares of forest land have been converted into cattle pastures and then been abandoned. Agroforestry is a potential option for the transformation of in parts degraded lands into productive agricultural systems. The re-establishment of a diversified soil...

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Autor principal: Barros, Eleusa
Outros Autores: Neves, Acacia, Blanchart, Éric, Fernandes, Erick C.M., Wandelli, Elisa Vieira, Lavelle, Patrick M.
Grau: Artigo
Idioma: English
Publicado em: Pedobiologia 2020
Assuntos:
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/19015
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spelling oai:repositorio:1-19015 Development of the soil macrofauna community under silvopastoral and agrosilvicultural systems in Amazonia Barros, Eleusa Neves, Acacia Blanchart, Éric Fernandes, Erick C.M. Wandelli, Elisa Vieira Lavelle, Patrick M. Compaction Pasture Restoration Ecology Silviculture Soil Fauna Soil Structure Amazonia Brasil Animalsia Annelida Bactris Bactris Gasipaes Bactris Gasipaes Bos Taurus Cellular Organisms Desmodium Desmodium Adscendens Desmodium Ovalifolium Invertebrata Oligochaeta Pheretima Sieboldi Prunus Persica Theobroma Theobroma Grandiflorum Theobroma Grandiflorum In the Brazilian Amazon region, millions of hectares of forest land have been converted into cattle pastures and then been abandoned. Agroforestry is a potential option for the transformation of in parts degraded lands into productive agricultural systems. The re-establishment of a diversified soil macrofauna can help in the process of recuperation of the often compacted soil structure of the pastures. The soil macrofauna community was studied during the rainy season in four different agroforestry systems near Manaus in Central Amazonia: 1. a high-input silvopastoral system (ASPh), 2. a low-input silvopastoral system (ASPI), 3. a palm based system with four tree crop species (AS1) and 4. a high-diversity tree crop system with ten tree crop species (AS2), plus a spontaneous fallow for comparison. The sampling method recommended by the Tropical Soil Biology and Fertility Programme was used. The highest diversity of fauna groups was observed in the ASPh and ASPI where trees were associated with the leguminous cover crop, Desrnodiurn ovalifoliurn. The cover crop exerted a favorable effect on the soil fauna presumably by maintaining the soil moist and shaded and providing litter as a substrate. Of the 15 soil fauna groups that were found in all systems, four were absent from AS1. Within the AS2 system a significantly greater density of the soil fauna was observed under peach palm (Bactris gasipaes) and cupuaçu (Theobroma grandiflorum) (3107 and 524 ind.m-2, respectively) than under the other three tree species. The soil under peach palm and cupuaçu also tended to have a higher number of soil fauna groups. In AS1, the soil under peach palm had a higher fauna density than the soil under cupuaçu, probably caused by the abundant residues of the heart of palm harvest on the soil. The earthworm biomass was particularly high in AS1. Under cupuaçu approximately 7 times more earthworms were found in AS1 (17.9) than in AS2 (2.4). The study of the macrofauna community, including both the litter layer and the superficial soil layers, allows to identify the plant species/management combinations which favour the increase of the diversity of the invertebrates. 2020-06-15T22:04:38Z 2020-06-15T22:04:38Z 2003 Artigo https://repositorio.inpa.gov.br/handle/1/19015 10.1078/0031-4056-00190 en Volume 47, Número 3, Pags. 273-280 Restrito Pedobiologia
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Compaction
Pasture
Restoration Ecology
Silviculture
Soil Fauna
Soil Structure
Amazonia
Brasil
Animalsia
Annelida
Bactris
Bactris Gasipaes
Bactris Gasipaes
Bos Taurus
Cellular Organisms
Desmodium
Desmodium Adscendens
Desmodium Ovalifolium
Invertebrata
Oligochaeta
Pheretima Sieboldi
Prunus Persica
Theobroma
Theobroma Grandiflorum
Theobroma Grandiflorum
spellingShingle Compaction
Pasture
Restoration Ecology
Silviculture
Soil Fauna
Soil Structure
Amazonia
Brasil
Animalsia
Annelida
Bactris
Bactris Gasipaes
Bactris Gasipaes
Bos Taurus
Cellular Organisms
Desmodium
Desmodium Adscendens
Desmodium Ovalifolium
Invertebrata
Oligochaeta
Pheretima Sieboldi
Prunus Persica
Theobroma
Theobroma Grandiflorum
Theobroma Grandiflorum
Barros, Eleusa
Development of the soil macrofauna community under silvopastoral and agrosilvicultural systems in Amazonia
topic_facet Compaction
Pasture
Restoration Ecology
Silviculture
Soil Fauna
Soil Structure
Amazonia
Brasil
Animalsia
Annelida
Bactris
Bactris Gasipaes
Bactris Gasipaes
Bos Taurus
Cellular Organisms
Desmodium
Desmodium Adscendens
Desmodium Ovalifolium
Invertebrata
Oligochaeta
Pheretima Sieboldi
Prunus Persica
Theobroma
Theobroma Grandiflorum
Theobroma Grandiflorum
description In the Brazilian Amazon region, millions of hectares of forest land have been converted into cattle pastures and then been abandoned. Agroforestry is a potential option for the transformation of in parts degraded lands into productive agricultural systems. The re-establishment of a diversified soil macrofauna can help in the process of recuperation of the often compacted soil structure of the pastures. The soil macrofauna community was studied during the rainy season in four different agroforestry systems near Manaus in Central Amazonia: 1. a high-input silvopastoral system (ASPh), 2. a low-input silvopastoral system (ASPI), 3. a palm based system with four tree crop species (AS1) and 4. a high-diversity tree crop system with ten tree crop species (AS2), plus a spontaneous fallow for comparison. The sampling method recommended by the Tropical Soil Biology and Fertility Programme was used. The highest diversity of fauna groups was observed in the ASPh and ASPI where trees were associated with the leguminous cover crop, Desrnodiurn ovalifoliurn. The cover crop exerted a favorable effect on the soil fauna presumably by maintaining the soil moist and shaded and providing litter as a substrate. Of the 15 soil fauna groups that were found in all systems, four were absent from AS1. Within the AS2 system a significantly greater density of the soil fauna was observed under peach palm (Bactris gasipaes) and cupuaçu (Theobroma grandiflorum) (3107 and 524 ind.m-2, respectively) than under the other three tree species. The soil under peach palm and cupuaçu also tended to have a higher number of soil fauna groups. In AS1, the soil under peach palm had a higher fauna density than the soil under cupuaçu, probably caused by the abundant residues of the heart of palm harvest on the soil. The earthworm biomass was particularly high in AS1. Under cupuaçu approximately 7 times more earthworms were found in AS1 (17.9) than in AS2 (2.4). The study of the macrofauna community, including both the litter layer and the superficial soil layers, allows to identify the plant species/management combinations which favour the increase of the diversity of the invertebrates.
format Artigo
author Barros, Eleusa
author2 Neves, Acacia
Blanchart, Éric
Fernandes, Erick C.M.
Wandelli, Elisa Vieira
Lavelle, Patrick M.
author2Str Neves, Acacia
Blanchart, Éric
Fernandes, Erick C.M.
Wandelli, Elisa Vieira
Lavelle, Patrick M.
title Development of the soil macrofauna community under silvopastoral and agrosilvicultural systems in Amazonia
title_short Development of the soil macrofauna community under silvopastoral and agrosilvicultural systems in Amazonia
title_full Development of the soil macrofauna community under silvopastoral and agrosilvicultural systems in Amazonia
title_fullStr Development of the soil macrofauna community under silvopastoral and agrosilvicultural systems in Amazonia
title_full_unstemmed Development of the soil macrofauna community under silvopastoral and agrosilvicultural systems in Amazonia
title_sort development of the soil macrofauna community under silvopastoral and agrosilvicultural systems in amazonia
publisher Pedobiologia
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/19015
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score 11.653393