Tree growth, mortality and recruitment in four tropical wet evergreen forest sites of the Kolli hills, eastern ghats, India
2002
Sundaram, B | Parthasarathy, N (Salim Ali School of Ecology and Environmental Sciences, Pondicherry University, Pondicherry (India))
Patterns of tree growth, mortality and recruitment in four permanent plots of tropical wet evergreen forest in Kolli hills of the Eastern Ghats, India, were investigated between 1996. Permanent tree plots of 2 ha (200 m x 100 m) were established in four evergreen forest sites- Perumakkai shoal (PS), Vengodai shoal (VS), Kuzhivalavu shoal (KS) and Mottukadu shoal (MS) along an elevational and disturbance gradient. A total of 3814 trees?40 cm girth at breast height from 78 species and 36 families were enumerated. There was no change in species richness during the study period. Mean stand basal area increased by 4.1%. Basal area increment was maximum in the highly disturbed site MS and minimum in the relatively undisturbed site PS (11.6J% and 1.7% respectively). Range of growth variation in species increased with forest disturbance and nonspecific exhibited variation within and across sites. Mortality was independent of tree size. Mortality rates exceeded recruitment rates and the stand turnover time was calculated to be 136 years.
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