ECOLOGY OF UPPER CATCHMENT AREA OF RIVER NARMADA CLIMO-VEGETATIONAL RELATIONSHIPS-I

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M.S.MURTHY (Department of BioSciences Saurashtra University) Ecology of upper catchment area of River Narmada climo-vegetational relationships-I. Jap. J. Ecol. 21,188-192 (1971) Aiming at flood control and soil erosion via afforestation, for the first time in India, a scheme on ecology of the upper catchment area of River Narmada has been taken up under the sponsorship of the Council of Scientific and Industrial Research, Government of India, and is being execnted in four phases. The present series of papers pertains to Phase-I of the project viz., phytosociological survey of the forest vegetation from the source of the river at Amarkantak upto Jabalpur. The area covers a linear distance of about 310 km and an approximate area of about 20,407 sq km. Of this total area, the investigations presented here cover an approximate area of about 7,310 sq km (From Manot to Jabalpur). The meteorological data available has been computed as per the system of THORNTH-WAITE (1955) to arrive at figures of water balance. This has enabled to distinguish four eco-climatic zones, with varying climatic indices. Growth and distribution of different forest trees have been observed to behave differently in the different eco-climatic zones distinguished and in relation to topography also. A study of correlation of the existing forest vegetation in the different four eco-climatic zones is the subject of the current series of papers.