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Abstract

Based on floral inventorization of the vegetation of Ratle catchment area, biological spectrum on life form was prepared and compared with Raunkiaer’s normal biological spectrum as well as the spectra of the adjoining areas prepared by other workers. The floristic list of the Ratle catchment consists of 384 species belonging to 96 families and 242 genera. Asteraceae has been recorded as the largest family (31 genera/52 species) followed by Fabaceae (12 genera /23 species), Lamiaceae (14 genera/ 23 species), Rosaceae (10 genera/ 17 species) etc. Thirty nine families show monotypic representation. The ratio of family to genera was calculated as 1:2.52; family to species as 1:4 and genera to species as 1:1.59. According to the Raunkiaerian life form classification (1934), Therophytes (33.85%) and Hemicryptophytes (18.75%) were found to be dominant thus indicating thero-hemicryptophytic type of phytoclimate in the study area.

Keywords

Biological spectrum life forms phytoclimate Ratle H.E. Project

Article Details

How to Cite
Raina, A. K., & Kumar , R. (2011). Floristic composition, life form classification and biological spectrum of the catchment of Ratle H.E. project, District Kishtwar-J&K (India). Environment Conservation Journal, 12(3), 1–6. https://doi.org/10.36953/ECJ.2011.120301

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