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| Titel: |
PHYTOSOCIOLOGICAL EVALUATION OF THE AUTOGENIC SUCCESSION IN MINED AREAS IN THE BRAZILIAN FEDERAL DISTRICT |
| Auteur: |
Rodrigo Studart Corrêa Benício de Melo Filho Gustavo Macedo de Mello Baptista |
| Verschenen in: |
Cerne |
| Paginering: | Jaargang 13 (2007) nr. 4 pagina's 406-415 |
| Jaar: |
2007 |
| Inhoud: |
Approximately 0.6% of the Brazilian Federal District´s territory have been degraded by mining. The evaluation of plantsuccession on such sites can be a useful tool to define strategies for reclamation. Thus, woody species of fifteen exploited sites,abandoned to succession for 20 - 47 years, were surveyed. All woody plants present on the sites were identified and counted for theevaluation of frequency, density and dominance of plant species naturally established on the mined spoils. Results show a plant densitybelow 5% and a species density below 15% compared to values measured in native areas. Ten out 98 species found on the mined areasaccounted for 52.9% of woody plants dominance. Capacity of re-growing from roots of some Savanna species is shaping thecommunities and the succession on exploited sites. About ¾ of native species found on the mined areas are able to re-grow from roots,and they made up to 89% of dominance and 96% of plant s density. Results point out to the need of boosting ecological successionthrough revegetation works on mined areas in the Brazilian Federal District. |
| Uitgever: |
Universidade Federal de Lavras - UFLA (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 7 van 10 gevonden artikelen
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