Tree formations in relation with soil and grasses in a dry savanna in Mali, West Africa
The relationship between trees, grass and soil in a dry savanna in Mali was investigated, to identify variables that are most relevant to assess vegetation units. A 65 ha plateau was inventoried using a systematic square grid sampling pattern. Thirteen soil or topography variables, and tree and gras...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
2005
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/19378 |
| _version_ | 1855543464923496448 |
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| author | Picard, N. Gueguen, K. Abdoulaye, H.A. Diarisso, D. Karembe, M. Birnbaum, P. Nasi, Robert |
| author_browse | Abdoulaye, H.A. Birnbaum, P. Diarisso, D. Gueguen, K. Karembe, M. Nasi, Robert Picard, N. |
| author_facet | Picard, N. Gueguen, K. Abdoulaye, H.A. Diarisso, D. Karembe, M. Birnbaum, P. Nasi, Robert |
| author_sort | Picard, N. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The relationship between trees, grass and soil in a dry savanna in Mali was investigated, to identify variables that are most relevant to assess vegetation units. A 65 ha plateau was inventoried using a systematic square grid sampling pattern. Thirteen soil or topography variables, and tree and grass characteristics were measured at each sampling point. Multivariate analysis was used to separately analyse soil, tree and grass data, and to characterize tree–grass and tree–soil relationships. Four units of soils, four units of tree formations, and four units of grass formations were identified. There was a correspondence between these groups, indicative of four vegetation units: thicket, bare land, shrub savanna and tree savanna. Soil depth and soil texture were the soil variables that best related to tree vegetation. A negative correlation was found between tree basal area and grass dry biomass. Finally, vegetation units, as identified from tree species composition, had contrasted diameter structures and densities. |
| format | Journal Article |
| id | CGSpace19378 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2005 |
| publishDateRange | 2005 |
| publishDateSort | 2005 |
| record_format | dspace |
| spelling | CGSpace193782025-01-24T14:21:05Z Tree formations in relation with soil and grasses in a dry savanna in Mali, West Africa Picard, N. Gueguen, K. Abdoulaye, H.A. Diarisso, D. Karembe, M. Birnbaum, P. Nasi, Robert dry forests savannas trees grasses soil relationships vegetation The relationship between trees, grass and soil in a dry savanna in Mali was investigated, to identify variables that are most relevant to assess vegetation units. A 65 ha plateau was inventoried using a systematic square grid sampling pattern. Thirteen soil or topography variables, and tree and grass characteristics were measured at each sampling point. Multivariate analysis was used to separately analyse soil, tree and grass data, and to characterize tree–grass and tree–soil relationships. Four units of soils, four units of tree formations, and four units of grass formations were identified. There was a correspondence between these groups, indicative of four vegetation units: thicket, bare land, shrub savanna and tree savanna. Soil depth and soil texture were the soil variables that best related to tree vegetation. A negative correlation was found between tree basal area and grass dry biomass. Finally, vegetation units, as identified from tree species composition, had contrasted diameter structures and densities. 2005 2012-06-04T09:09:23Z 2012-06-04T09:09:23Z Journal Article https://hdl.handle.net/10568/19378 en Picard, N., Gueguen, K., Abdoulaye, H.A., Diarisso, D., Karembe, M., Birnbaum, P., Nasi, R. 2005. Tree formations in relation with soil and grasses in a dry savanna in Mali, West Africa . African Journal of Ecology 43 (3) :201-214. ISSN: 0141-6707. |
| spellingShingle | dry forests savannas trees grasses soil relationships vegetation Picard, N. Gueguen, K. Abdoulaye, H.A. Diarisso, D. Karembe, M. Birnbaum, P. Nasi, Robert Tree formations in relation with soil and grasses in a dry savanna in Mali, West Africa |
| title | Tree formations in relation with soil and grasses in a dry savanna in Mali, West Africa |
| title_full | Tree formations in relation with soil and grasses in a dry savanna in Mali, West Africa |
| title_fullStr | Tree formations in relation with soil and grasses in a dry savanna in Mali, West Africa |
| title_full_unstemmed | Tree formations in relation with soil and grasses in a dry savanna in Mali, West Africa |
| title_short | Tree formations in relation with soil and grasses in a dry savanna in Mali, West Africa |
| title_sort | tree formations in relation with soil and grasses in a dry savanna in mali west africa |
| topic | dry forests savannas trees grasses soil relationships vegetation |
| url | https://hdl.handle.net/10568/19378 |
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