Biodiversity & Conservation

, Volume 15, Issue 7, pp 2263–2285

Floristic and Structure of the Herbaceous Vegetation of Four Recovering Forest Stands in the Eastern Ghats of India

Article

Abstract

Floral composition and structural parameters of the herbaceous vegetation of four recovering tropical dry deciduous forest stands protected for 2, 4, 6 and 10-year periods, on the Eastern Ghats of India, situated at Kandhamal district of Orissa, India were investigated. More than 1 ha of recovering forest stands of each of the four stages was selected and fifteen sample quadrats of 1 m × 1 m were randomly placed at each stand for vegetation analysis. Floristic analysis revealed highest number of species (69) in 2-year recovering stand, which declined with increase in age. A total of 87 species, 71 genera and 32 families were recorded in the forest stands. Total number of herbaceous species encountered in the stands was 44, 28, 30 and 24 in 2, 4, 6 and 10-year stands, respectively. Total individuals of all herb species were 114, 70, 88 and 68 plant m−2 in 2, 4, 6 and 10-year stands, respectively. Herbaceous stand basal areas were 7.84, 3.66, 4.77 and 5.23 cm2 m−2 in 2, 4, 6, and 10-year stands, respectively. Importance value index (IVI) revealed that Heteropogon contortus was predominant in 2 and 4-year stands, Andrographis paniculatus in 6-year stand and Elephantopus scaber in 10-year stand. Diversity-dominance curve revealed lognormal distribution in all the four stands. Simpson’s dominance index (C) was highest in 2-year stand which decreased in other stands, while Shannon’s diversity index (H1) was almost the same in all the stands. Biomass of herbaceous vegetation was 83.2 g m−2 in 2 year, 62.2 g m−2 in 4 year, 58.0 g m−2 in 6 year and 64.0 g m−2 in 10-year stand.

Keywords

Diversity index Dominance index Eastern Ghats Floristic composition Herb Importance value index Recovering forest Similarity index 

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Copyright information

© Springer 2005

Authors and Affiliations

  1. 1.P.G. Department of Botany, Ecology and Floristic LaboratoryBerhampur UniversityBerhampurIndia

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