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_aCR-TuBCO _cCR-TuBCO _bEspañol |
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_a631.58 _bS187 |
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_9115500 _aSambuichi, R.H.R. _eautor/a |
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| 245 | 1 | 0 | _aEstrutura e dinâmica do componente arbóreo em área de cabruca na região cacaueira do sul da Bahia, Brasil |
| 246 | 3 | _aStructure and dynamics of the tree community in a “cabruca” area in the cacao region of southern Bahia State, Brazil | |
| 260 |
_aIlhéus (Brasil): _bActa Botanica Brasilica, _c2006 |
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| 270 | _aSan José, C.R. | ||
| 300 |
_a12 páginas _b: 2 figuras, 6 tablas |
||
| 440 | _aActa Botánica Brasileira | ||
| 504 | _aIncluye 45 referencias bibliográficas en las páginas 952-954 | ||
| 520 | _a“Cabrucas” are areas where cacao trees are planted in the shade of thinned native forest. In southern Bahia State, where the forests are few and fragmented, cabrucas are important for native species conservation. Aiming to evaluate the conservation of native tree species in cabrucas on a long term basis, a phytosociological survey of the shade trees was carried out in a 1.7-ha area of cabruca ca. 25 years after implantation, and the dynamics were assessed after a period of seven years. One hundred and twenty trees were counted and 62 species identified. Mean density was 70.5 ind. ha-1, mean basal area was 23.0 m 2 ha-1 and diversity was 3.88 nats ind.-1 (Shannon). After seven years, there was an 8.4% reduction in density, with a mortality rate of 2.16% year-1 and a recruitment rate of 0.81% year -1. The mean increment in diameter was 0.7 ± 0.6 cm year-1. The trees were mainly mature forest species, but newly recruited individuals were mostly pioneer species. Total estimated richness (Chao) was 110 species, with a reduction of 20 species during the period. The results confirmed indications that the cabrucas represent an important reservoir of native tree species, but these areas are quickly becoming altered, thinned and impoverished. There is an urgent need to modify current management practices in order to conserve mature forest species. The high basal area and growth rate indicate that the cabrucas may be used for carbon sequestration and storage. | ||
| 546 | _aObra escrita en portugués con resumen en inglés | ||
| 650 | 1 | 4 |
_9166664 _aTHEOBROMA CACAO |
| 650 | 1 | 4 |
_9139864 _aCEDRELA ODORATA |
| 650 | 1 | 4 |
_9158986 _aPLANTACION |
| 650 | 1 | 4 |
_9134976 _aAGROFORESTERIA |
| 650 | 1 | 4 |
_9164829 _aSISTEMAS DE CULTIVO |
| 650 | 1 | 4 |
_9136468 _aARBOLES |
| 650 | 1 | 4 |
_9159031 _aPLANTAS DE SOMBRA |
| 650 | 1 | 4 |
_9165190 _aSOMBRA |
| 650 | 1 | 4 |
_9134292 _aACLAREO |
| 650 | 1 | 4 |
_96 _aBIODIVERSIDAD |
| 650 | 1 | 4 |
_9141819 _aCONSERVACION DE LA NATURALEZA |
| 650 | 1 | 4 |
_9162185 _aREGENERACION NATURAL |
| 650 | 1 | 4 |
_9141423 _aCOMPOSICION BOTANICA |
| 650 | 1 | 4 |
_922254 _aBAHIA |
| 650 | 1 | 4 |
_aBRASIL _9138451 |
| 691 |
_9166664 _aTHEOBROMA CACAO |
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| 691 |
_9139864 _aCEDRELA ODORATA |
||
| 691 |
_9332136 _aPLANTING |
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| 691 |
_9134979 _aAGROFORESTRY |
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| 691 |
_9142769 _aCROPPING SYSTEMS |
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| 691 |
_9167266 _aTREES |
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| 691 |
_9338197 _aSHADE PLANTS |
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| 691 |
_9164495 _aSHADE |
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| 691 |
_9166684 _aTHINNING |
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| 691 |
_9137891 _aBIODIVERSITY |
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| 691 |
_9155808 _aNATURE CONSERVATION |
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| 691 |
_9328327 _aNATURAL REGENERATION |
||
| 691 |
_9308379 _aBOTANICAL COMPOSITION |
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| 691 |
_922254 _aBAHIA |
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| 691 |
_922604 _aBRAZIL |
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| 773 | 0 |
_tActa Botanica Brasilica _d(2006) _gVolumen 20, número 4, páginas 943-954 |
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| 856 | 4 | 0 |
_uhttps://dx.doi.org/10.1590/S0102-33062006000400018 _qpdf _ypor |
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