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| Lima,Sandra Santana de; Aquino,Adriana Maria de; Leite,Luiz Fernando Carvalho; Velásquez,Elena; Lavelle,Patrick. |
| O objetivo deste trabalho foi avaliar o efeito do uso do solo sobre a densidade e a diversidade da macrofauna invertebrada, bem como a relação dessa com atributos químicos do solo em diferentes agroecossistemas. Foram estudados cinco agroecossistemas: sistema ecológico com três anos de adoção (SE3), sistemas agroflorestais com seis (SAF6) e dez (SAF10) anos de adoção; agricultura de corte e queima (ACQ), e floresta nativa (FN). Em cada sistema, foram coletadas aleatoriamente cinco amostras solo, em forma de blocos (25x25 cm), na profundidade de 10 cm, nas épocas seca (outubro, 2006) e chuvosa (maio, 2007). A relação entre os atributos químicos e a macrofauna edáfica, nos diferentes sistemas de uso do solo, foi determinada por meio da análise da coinércia.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultura de queima e corte; Invertebrados do solo; Sistemas agroflorestais; Sistemas de uso do solo; Transição cerrado-floresta. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000300013 |
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| Marchão,Robélio Leandro; Lavelle,Patrick; Celini,Leonide; Balbino,Luiz Carlos; Vilela,Lourival; Becquer,Thierry. |
| The objective of this work was to assess the effects of integrated crop-livestock systems, associated with two tillage and two fertilization regimes, on the abundance and diversity of the soil macrofauna. Four different management systems were studied: continuous pasture (mixed grass); continuous crop; two crop-livestock rotations (crop/pasture and pasture/crop); and native Cerrado as a control. Macrofauna was sampled using a modified Tropical Soil Biology and Fertility method, and all individuals were counted and identified at the morphospecies level for each plot. A total of 194 morphospecies were found, distributed among 30 groups, and the most representative in decreasing order of density were: Isoptera, Coleoptera larvae, Formicidae, Oligochaeta,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Crop-pasture rotation; No-tillage; Soil invertebrates; Soil quality. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800033 |
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| Lavelle,Patrick. |
| Soil zoology and soil ecology have become very active fields of research since the early 1990s. A search in the ISI Web of Science databases showed a steady increase in publications about that theme over the last two decades, and 3,612 bibliographic references were found for that theme for the period of 2004 to 2008. The researches covered mostly soil environmental issues, toxicology and ecology. The issue of theoretical development in soil ecology is discussed, and arguments are presented against the idea that the soil ecology theory is deficient. Finally, the need for a general model of soil function and soil management is discussed and some options are presented to reach this goal. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Auto organization; Panarchy; Soil ecology; Soil zoology. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800003 |
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