Abstract
The peripheral disturbed zone of a 50-year old stand of the forest at Lailad was dominated byDendrocalamus hamiltonii, an early successional bamboo characteristic of a secondary successional fallow of not more than 20–25 years while the central undisturbed zone hadSchima wallichii, Castanopsis indica andShorea robusta as important components. The biomass of the forest was computed as 137×108 kg/ha of which 64.7% was in the central zone. The contribution by different species both in the central and peripheral zone of the forest was worked out. Linear relationship betweendbh/d 2 h and biomass was worked out for different species. The standing crop had: N, 953; P, 284; K, 600; Ca, 2281; and Mg, 450 kg/ha, of which 60% was in the central zone of the forest.
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References
Agrawal S K 1980 Community structure of the deciduous forests at Prasad;Acta Ecol. 2 (3–4) 36–41
Akai T, Furono T, Ueda S and Soichi S 1968 Mechanisms of matter production in young loblolly pine forest Kyoto Univ.;Japan For. Bull. 40 26–49
Dadhichi L K 1979 Studies on the productivity of dry deciduous trees at Jhamarkotra (i)Anogeissus pendula Endew (ii)Wrightia tinctoria R.Br.;Acta Ecol. (1–2) 28–33
Deshbandhu A 1970 A study of the productive structure of northern tropical dry deciduous forests near Varanasi;Trop. Ecol. 11 90–104
Duvignaeud P S, Denaeyer-De Smet and Marbaise J L 1969 Littere totale et restitution an sol des polyelements biogens;Bull. Soc. Roy. Bot. Belg. 102 339–354
Faruqi Q 1972 Organic, mineral structure and productivity of Sal (Shorea robusta Gaertn.) and teak (Tectona grandis Linn). Ph.D. thesis. (Varanasi: Banaras Hindu University)
Gleason H A 1926 The individualistic concept of the plant association;Bull. Torrey. Bot. Club 53 7–26
Grantham J B and Ellis T H 1974 Potentials of wood for productivity energy;J. For. 72 552–556
Greenland D J and Kowal J M L 1960 Nutrient content of the moist tropical forest of Ghana;Plant Soil 12 154–174
Grier C C, Cole D W, Dyrness C T and Fedreksen R L 1974 Nutrient cycling in 37 and 450-year old Douglas fir ecosystem; In:Integrated research in the coniferous forest Biome (ed) R H Waring and R L Edmunds 8–21
Jackson M L (ed) 1958Soil chemical analysis (New Jersey: Prentice Hall. Inc. Englewood Cliffs)
Jordan C F and Kline J R 1972 mineral cycling: Some basic concepts and their application in a tropical rain forest;Adv. in Ecol. and Syst. 33–50
Kershaw K A 1973Quantitative and Dynamic Plant Ecology (London: Edward Arnold)
Misra R (ed) 1968Ecology work Book. (New Delhi: Oxford and IBH Publication Co.)
Newbould P J 1967Methods of estimating the primary production of forests. Blackwell Sci. Publ. Oxford-Edinburgh. IBP Hand Book No. 2
Ovington J D 1958 The sodium, potassium and phosphorus contents of tree species grown in close stands;New Phytol. 57 273–284
Ovington J D 1959 The circulation of minerals in plantations ofPinus sylvestris L.;Ann. Bot. (NS)23 229–239
Paech K and Tracey M V (ed) 1956Modern methods of plant analysis Vol. III (Berlin; Springer Verlag), pp. 542
Ramakrishnan P S and Toky O P 1978 Preliminary observations on the impact of jhum (shifting agriculture) in the forested ecosystem. In:Resource development and environment in the Himalayan region; Dept. of Sci. and Tech. Govt. of India 343–354.
Ramakrishnan P S and Toky O P 1981 Soil nutrient Status of hill agroecosystem and recovery pattern after slash and burn agriculture (Jhum) in north eastern India,Plant Soil 60 41–64
Ramakrishnan P S, Toky O P, Mishra B K and Saxena K G 1981 Slash and burn agriculture in North-Eastern India. In:Fire regimes and ecosystem properties. (ed) H A Mooney, T M Bonnickson, N L Christensen, J E Lotan and W A Reiners, USDA Forest Service general technical reportWO-26 pp. 570–587
Shannon C E and Weaver W 1963The mathematical theory of communication; (Urbana: University of Illinois Press), pp. 117
Simpson E H 1949 Measurement of diversity;Nature (London) 163 688
Smith W H, Nelson L E and Switzer G L 1971 Development of the shoot system of young loblolly pine II Dry matter and nitrogen accumulation;For. Sci. 17 55–62
Vyas L N, Garg R K, Vyas N L and Jindal K 1980 Community structure and above ground-biomass in dry deciduous forests around Udaipur (Rajasthan) India;Acta Ecol. 2 25–32
Whittaker R H (ed) 1975Communities and ecosystem. Second ed (London and New York: MacMillan) pp. 385
Whittaker R H and Likens G E 1973aCarbon in the biota. In:Carbon in the biosphere (eds.) G M Wood Well and E V PecanBrookhaxen Symp. Biol. Spring field. Virginia
Whittaker R H and Likens G E 1973b Primary production the biosphere and man;Hum. Ecol. 1 357–369
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Singh, J., Ramakrishnan, P.S. Structure and function of a sub-tropical humid forest of Meghalaya I. Vegetation, biomass and its nutrients. Proc. Indian Acad. Sci. 91, 241–253 (1982). https://doi.org/10.1007/BF03167128
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DOI: https://doi.org/10.1007/BF03167128