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Previous issue date: 2008-08-30 === The present study was developed at Santuary of Silvester Life, Serra da Conc?rdia,
Valen?a (RJ), aiming to collect informations which can subsidize the handling and the
preservation of Euterpe edulis at the Atlantic Forest; to study the floristics and the
structure of a secondary forest, which was submited to enrichment; to valuate the E.
edulis development in a plantation of enrichment, and to confirm the viability of
development of palm cabbage culture in impacted forestal remainings. Were used
collecting of floristic and phytosociological facts in two parcels of 20x50m. It was
estimated the viability of plantation of enrichment with E. edulis by analysing the
growth in two parcels of 20x50m. It was established four classes of size of exposed
stirps (C1= up to 0,5m; C2 from 0,5 to 1,5m; C3 from 1,3 to 3,0m and C4 from 3,0m
on and with circumference at chest level (CAP) > 15cm). Each parcel was devided in
ten subparcels of 10x10m, in which all palm cabbage plantation of (C4 class) had their
CAP measurings and exposed etirps height taken.In each subparcel of 10x10m it was
allocated a subparcel of 4,0x4,0m, where the individuals of the classes C1,C2 and C3
have had their measurings of diameter of colon, CAP and height of stirps taken. All
palm cabbage were identified with aluminium plate printed in low relief and fixed with
copper nails.The parcel 1 can be found at the bottom of the region nearby a stream,
while the parcel 2 can be found almost 50m above the first parcel. It has been done two
measurings in an interval of six months and, at the and of this period, it had been
estimated the percentage of survival and of changing of class. The analyses of growth in
each sample, and also between one another was done by the non parametric test of
Kruskal-Wallis. The fragment was characterized by the index of similarity and
diversity, by Margalef with some other seven remainings of Atlantic Forest with
different degrees of impactation and distincts successional stages. It was also compared
some abiotic characteristics between the fragments. The individuals of C1; C2 and C3
from parcel1 were significantly grown, speaking about the diameter of colon. The
individuals of the same classes of parcel 2 have not had an expressive growth, but there
have had a significative growth in height of exposed stirps for these classes. The C4
from parcel 1 were grown concerning to the CAP, but those one of the parcel 2 didn?t.
Speaking about the height of stirps in both of the parcels, the growth was very
significative. The percentage of survival were about 95,8% and 100% in the parcels 1
and 2, respectively. === O presente estudo foi desenvolvido no Santu?rio de Vida Silvestre, Serra da Conc?rdia,
Valen?a (RJ), com o objetivo de coletar informa??es que possam subsidiar o manejo e a
conserva??o de Euterpe edulis na Floresta Atl?ntica; estudar a flor?stica e a estrutura de
uma floresta secund?ria submetida a enriquecimento; avaliar o desenvolvimento de E.
edulis em plantio de enriquecimento e confirmar a viabilidade do desenvolvimento da
cultura de palmito em remanescentes florestais impactados. Foram utilizados
levantamentos flor?stico e fitossociol?gico em duas parcelas de 20x50m. Avaliou-se a
viabilidade do plantio de enriquecimento com E. edulis atrav?s de an?lise de
crescimento em duas parcelas de 20x50m. Foram estabelecidas quatro classes de
tamanho de estipe exposta (C1=at? 0,5m; C2 de 0,5 a 1,5m; C3 de 1,3 a 3,0m e C4
acima de 3,0m e com circunfer?ncia a altura do peito (CAP) 15cm) Cada parcela foi
dividida em dez subparcelas de 10x10m, onde todos os palmiteiros da classe C4 tiveram
suas medidas de CAP e altura de estipe exposta tomadas. Em cada subparcela de
10x10m foi alocada uma subparcela de 4,0x4,0m, em que os indiv?duos das classes C1,
C2 e C3 tiveram suas medidas de di?metro de colo, CAP e altura de estipe tomados.
Todos os palmitos foram identificados com placas de alum?nio impressas em baixo
relevo e afixadas com pregos de cobre. A parcela 1 se encontra em regi?o mais baixa,
pr?xima ao c?rrego, enquanto que a parcela 2 se localiza cerca de 50m acima da
primeira parcela. Foram feitas duas medi??es com intervalo de seis meses e, ao final
deste per?odo, foram calculados os percentuais de sobreviv?ncia e de mudan?a de
classe. A an?lise do crescimento em cada amostra, e tamb?m entre elas, foi feita atrav?s
do teste n?o param?trico de Kruskal-Wallis. Caracterizou-se o fragmento atrav?s do
?ndice de similaridade e diversidade de Margalef com outros sete remanescentes de
Mata Atl?ntica com diferentes graus de impacta??o e est?gios sucessionais distintos.
Tamb?m foram comparadas algumas caracter?sticas abi?ticas entre os fragmentos. Os
indiv?duos de C1, C2 e C3 da parcela 1 cresceram significativamente quanto ao
di?metro de colo. Os indiv?duos das mesmas classes da parcela 2 n?o tiveram
crescimento significativo, mas houve crescimento significativo em altura de estipe
exposta para estas classes. Os C4 da parcela 1 cresceram quanto ao CAP, mas os da
parcela 2, n?o. Quanto ? altura de estipe, em ambas as parcelas o crescimento foi
significativo. Os percentuais de sobreviv?ncia foram de 95,8% e 100% nas parcelas 1 e
2, respectivamente.
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