Impact of land management on soil macrofauna in the Oriental Llanos of Colombia
The effect of different types of land management on the soil macrofauna of the savanna has been assesed using the T.S.B.F. method. Macrofauna of the forest and savanna has a high density (4293 and 2830 ind.m(2)) and moderate biomass (13.6 and 15.3 g.m(-2)). Traditional grazing significantly increase...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
1994
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/43554 |
| _version_ | 1855541209617924096 |
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| author | Decaëns, Thibaud Lavelle, Patrick M. Jiménez Jaén, J.J. Escobar, G. Rippstein, G |
| author_browse | Decaëns, Thibaud Escobar, G. Jiménez Jaén, J.J. Lavelle, Patrick M. Rippstein, G |
| author_facet | Decaëns, Thibaud Lavelle, Patrick M. Jiménez Jaén, J.J. Escobar, G. Rippstein, G |
| author_sort | Decaëns, Thibaud |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The effect of different types of land management on the soil macrofauna of the savanna has been assesed using the T.S.B.F. method. Macrofauna of the forest and savanna has a high density (4293 and 2830 ind.m(2)) and moderate biomass (13.6 and 15.3 g.m(-2)). Traditional grazing significantly increase earthworm biomass but does not modify biomass (16.8 g.m(-2)) and density (1971 ind.m(-2)). Burning the savanna leads to a momentarily but important disruption of the soil fauna. After 6 months, soil macrofauna has regained its initial level. When stocking rate increase, contribution to biomass of different groups is modified. These results are probably due to the modification of the soil microclimate and to the imput of cow dung. Improved pastures have an important earthworm population (22.9 to 51.1 g.m(-2)) composed of native species, and a high macrofauna diversity (26 to 32 units). This results from the improving of the quality of the organic matter brought to the soil (litter and cow dung). Annual high input cultivations results in a spectacular decrease, both quantitative and qualitative, in the invertebrate populations (3.2 to 4.3 g.m(-2), 429 to 592 ind. m(-2) and 18 units). This phenomenon may be explained by the effect of the tilling of the soil, the fertilization and by the decrease of the soil organic matter. |
| format | Journal Article |
| id | CGSpace43554 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1994 |
| publishDateRange | 1994 |
| publishDateSort | 1994 |
| record_format | dspace |
| spelling | CGSpace435542023-02-15T05:21:58Z Impact of land management on soil macrofauna in the Oriental Llanos of Colombia Decaëns, Thibaud Lavelle, Patrick M. Jiménez Jaén, J.J. Escobar, G. Rippstein, G land use soil fauna lumbricidae biomass savannas utilización de la tierra fauna del suelo biomasa sabanas The effect of different types of land management on the soil macrofauna of the savanna has been assesed using the T.S.B.F. method. Macrofauna of the forest and savanna has a high density (4293 and 2830 ind.m(2)) and moderate biomass (13.6 and 15.3 g.m(-2)). Traditional grazing significantly increase earthworm biomass but does not modify biomass (16.8 g.m(-2)) and density (1971 ind.m(-2)). Burning the savanna leads to a momentarily but important disruption of the soil fauna. After 6 months, soil macrofauna has regained its initial level. When stocking rate increase, contribution to biomass of different groups is modified. These results are probably due to the modification of the soil microclimate and to the imput of cow dung. Improved pastures have an important earthworm population (22.9 to 51.1 g.m(-2)) composed of native species, and a high macrofauna diversity (26 to 32 units). This results from the improving of the quality of the organic matter brought to the soil (litter and cow dung). Annual high input cultivations results in a spectacular decrease, both quantitative and qualitative, in the invertebrate populations (3.2 to 4.3 g.m(-2), 429 to 592 ind. m(-2) and 18 units). This phenomenon may be explained by the effect of the tilling of the soil, the fertilization and by the decrease of the soil organic matter. 1994 2014-09-24T08:42:18Z 2014-09-24T08:42:18Z Journal Article https://hdl.handle.net/10568/43554 en Open Access |
| spellingShingle | land use soil fauna lumbricidae biomass savannas utilización de la tierra fauna del suelo biomasa sabanas Decaëns, Thibaud Lavelle, Patrick M. Jiménez Jaén, J.J. Escobar, G. Rippstein, G Impact of land management on soil macrofauna in the Oriental Llanos of Colombia |
| title | Impact of land management on soil macrofauna in the Oriental Llanos of Colombia |
| title_full | Impact of land management on soil macrofauna in the Oriental Llanos of Colombia |
| title_fullStr | Impact of land management on soil macrofauna in the Oriental Llanos of Colombia |
| title_full_unstemmed | Impact of land management on soil macrofauna in the Oriental Llanos of Colombia |
| title_short | Impact of land management on soil macrofauna in the Oriental Llanos of Colombia |
| title_sort | impact of land management on soil macrofauna in the oriental llanos of colombia |
| topic | land use soil fauna lumbricidae biomass savannas utilización de la tierra fauna del suelo biomasa sabanas |
| url | https://hdl.handle.net/10568/43554 |
| work_keys_str_mv | AT decaensthibaud impactoflandmanagementonsoilmacrofaunaintheorientalllanosofcolombia AT lavellepatrickm impactoflandmanagementonsoilmacrofaunaintheorientalllanosofcolombia AT jimenezjaenjj impactoflandmanagementonsoilmacrofaunaintheorientalllanosofcolombia AT escobarg impactoflandmanagementonsoilmacrofaunaintheorientalllanosofcolombia AT rippsteing impactoflandmanagementonsoilmacrofaunaintheorientalllanosofcolombia |