|
|
|
|
|
| Wild,Anna-Katharina; Marx,Michael Thomas; Eisenbeis,Gerhard. |
| Micro, macro and mesofauna in the soil often respond to fluctuating environmental conditions, resulting in changes of abundance and community structure. Effects of changing soil parameters are normally determined with samples taken in the field and brought to the laboratory, i.e. where natural environmental conditions may not apply. We devised a method (STAFD - soil tubes for artificial flood and drought), which simulates the hydrological state of soil in situ using implanted cores. Control tubes were compared with treatment tubes in which floods of 15, 30, 60 and 90 days, and droughts of 60, 90 and 120 days were simulated in the field. Flooding and drought were found to reduce number of individuals in all soil faunal groups, but the response to drought... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate change; Drought; Flooding; Soil invertebrates; Soil tubes; STAFD method. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800007 |
| |
|
| |
|
|
| Santos,Djavan Pinheiro; Schossler,Thiago Rodrigo; Santos,Isis Lima dos; Melo,Nathália Batista; Santos,Glenio Guimarães. |
| ABSTRACT: The aim of this study was to characterize the soil macrofauna under different crop systems and compare them to the macrofauna under the native vegetation of a Cerrado/Caatinga ecotone in southwestern Piauí State, Brazil. The areas studied included areas under sweetsop cultivation (Annona squamosa L.), andropogon grass with three years of use, andropogon grass with six years of use, pivot-irrigated corn, Napier grass, and native vegetation. In each area, soil layers of 0-0.1, 0.1-0.2, and 0.2-0.3m, including the surface litter, were evaluated following the Tropical Soil Biology and Fertility Program (TSBF) recommendations. The soil macrofauna from the different land-use systems were identified to the family level, and the mean density of each... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioindicators; Napier grass; Irrigated crop; Soil invertebrates; Soil quality. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001000404 |
| |
|
|
| Silva,Lusimar Lamarte Gonzaga Galindo da; Resende,Alexander Silva de; Dias,Paulo Francisco; Correia,Maria Elizabeth Fernandes; Scoriza,Rafael Nogueira. |
| Grasslands afforestation aims at adding different soil uses in a way they become profitable for their owners. As such handling aims at minimizing impacts, the current study had as its goal the use of soil macrofauna in order to evaluate legume afforestation effects on the soil, regardless the depth. Thus, nitrogen fixing species were inserted onto grassland areas and the macrofauna collection was performed 6 years after their planting in the 0-10cm, 10-20cm and 20.30cm layers, in winter and summer. Leguminous influence was different between depths and times of the year. It mostly favors communities under "Mimosa" Genus treetops. Besides, the effects from climatic seasonal variations on invertebrates were mitigated by the implementation of such legume trees |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil invertebrates; Silvopastoral; Brachiaria brizantha. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701191 |
| |
|
|
| 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 |
| |
|
|
|
