PATTERN OF FLORISTIC DIVERSITY OF SUB-TROPICAL FOREST IN SHIVALIK RANGE OF DOON VALLEY, UTTARAKHAND

Seema Verma1, Dr.S.P. Joshi2, Dr.D.D. Giri3
1Seema Verma, Research Scholar, IFTM University, Moradabad, U.P
2Dr. S.P. Joshi, Associate Professor, Department of Botany, D.A.V. (P.G.) College, Dehradun
3Dr. D.D. Giri, Assistant Professor, Department of Botany, IFTM University, Moradabad, U.P
Correspondence should be addressed to Seema verma1;
simrandun@gmail.com

Abstract

: In the present study, comparison of life- forms reveals that the therophytes with 48.90% has the highest dominance. Relatively high percentage of therophytes indicates the fact that, they spend unfavorable period in the form of seeds. Therophytes (annuals) are drought evaders in the sense that the whole plant is shed during the unfavourable conditions. The higher percent of therophytes in Tons riverine system is due to the biotic disturbances like lopping and felling trees and grazing and is an indicator of influence of man and animals (Bharucha and Dave, 1944; Dayama, 1987; Ghildiyal and Srivastava, 1990). The presence of large number of therophytes is an area is often related to drier soil conditions (Dadhich, 1982). The high percentage of these shallow rooted annuals have made the maximum use of moisture from upper layers of soil thereby making a drain of soil moisture as observed by Singh and Joshi (1983). Dayama (1987) observed that overgrazing increases the percentage of Therophytes as recorded on grazed site of watershed areas and concluded that high values for therophytes is an indicator the influence exerted by men and animals. Rajwar and Gupta (1981) also observed the highest percentage of therophytes in disturbed areas of biotic influence and along the river banks.

Keywords:

:Riverine, Raus, Biological Spectrum, Life-form, Shivalik range, Doon valley


Full Text:

PDF


References


Abernethy, R.K. and Turner,R.E. (1987).U.S.forested wetland: 1940-1980. Bioscience (37):721-727 Brinson,M.M. (1977). Decomposition and Nutrient exchange of litter in an alluvial swamp forest. Ecology 58: 601-609. Brinson,M.M. (1990). Riverine forests in forested wetland. ed A.E. Lugo, M.M. Brinson & S. Brown, pp-87-141 Brinson,M.M.and Malvarez, A.I. (2002).Temperate fresh water wetland: types status & threats, Envionment conservation (29): 115-133. Dakshini, K.M.M. (1960 b) The vegetation of Mothronwala Swamp forest (plant community of swamp zone) Indian forester, 86:728-733. Dakshini, K.M.M. (1960 a) The vegetation of Mothronwala Swamp forest, A preliminary Survey. Bull. Bot Surv. India., 9:57.59. Dakshini, K.M.M. (1974) The flora of Mothronwala Swamp. Jour. Bomb.Nat.hist.Soc. 71(2):235-243. Dakshini, K.M.M. (1970) The flora of Mothronwala Swamp. Jour. Bomb.Nat.hist.Soc. 71(2):176-186. Dakshini, K.M.M. (1970) A study of vegetation of Motronwala Swamp forest dehradun, India Jour. Ind. Bot.Soc., 44:441-448 Ghildiyal,J.C. and M.M. Srivastava. (1992).Litter production in a Sub-tropical fresh water Swamp at Rishikesh. India. Tropical Ecosstem_Ecology and Management(Ed.K.P. Singh and J.S. Singh) pp.461-467. Ghildyal, J.C. and M.M. Srivastava (1989). The vegetation of Many Swamp. A tropical freshwater swamp forest. The Indian for., 115(3) : 183-191. Gomez, M.Marta & F.P.Day, Jr. (1982). Litter nutrient content and production in the Great Dismal Swamp. Amer. J. Bot., 69(8) : 1314-1321. Greenland, D.J. and J.I.L. Kowal, (1960). Nurients content on the tropical forest of Ghana. Plant soil, 12 :154-174. Jeans, Martin and Bouchard, Andre (1993). Riverine wetland vegetation : Importance of small-scale and larg-scale environmental variation. Journal of Vegetation Science, 4 : 609-620. Kalliola, R. and M.Puhakka (1988). River dynamics and vegetation mosaicism, a case study of the river Kamajokha, Northernmost Finland. Journal of biogeography, 15 :703-719. Kelly, J.C., Burton, T.N. and Enslin, W.R. (1985). The effect of natural water level fluctuations on `N` and `P` cycling in a Great Lakes Marsh. Wetlands. 4 : 159-175. Michael, P. (1984). Ecological methods fir field and laboratory investigations, Tata Mc Graw Hill Pub. Co. Ltd., New Delhi. Milner, C. and Hughes, R.E. (1968). Methods for measurement of primary production of grasslands. IBP Handbook No. 6. Blackwell Scientific Publication, Oxford. Mishra, R. and Gopal, B.1968(Ed.) Proc. of the Symp. On Recent Advances on Tropical Ecology, Part II Inter. Sec. For. Trop. Ecol., B.H.U., Varanasi. Newbould, P.J., (1967). Method of Estimating Primary Production of Forest, I.B.P. Hand Book No-2, Blackwell Scientific Publication, London. Nadalhoffer, K.S., Abel, J.D., Mellilo, J.M. (1985). Fine roots net primary production and soil nitrogen availability. A new hypothesis. Ecology, 66 : 1377-1390. Negi, J.D.S., Manhas, R.K. and Chauhan, P.S. (2005). Community structure of the upland and riparian Forests near Golatappar wetland of doon valley. Bulletin of the National Institute of Ecology (16): 149-154. Piper, C.S. 1944. Soil and Plant Analysis. Inter Science Publ. New York. Schlesinger, W.H. (1976). Community Structure, Dynamics and Nutrient Ecology in the Okefenokee Cypress swamp forest. Ecological monograph, 48 : 43-65. Som Deva & B.S. Aswal, 1974. Taxonamy and Ecology of Mothronwala swamp; Areassessment. Ind. For., 100: 12-19. Som Deva & M.N. Srivastava, 1978. An Ecology study of Vegetation of Golatappar Swmp. Ind. Jour. Forestry, 1(1): 44-52. Soma Deva, Srivastava, M.M. nand Ghanshyam (1979). Conservation of swamp forest for wildlife. J. of wildlife Presentation of India, Cheetal, 21(1) :21-24. Srivastava, M.M., Joshi, S.P., Ghildiyal, J.C., Manhas, R.K. & Kumar, Vinod (2000). Demography and successional trends in Fresh Water Swamps of Deharadun Valley (U.P.). India. In: P.Soni & Ajit. K.Srivastava (editors). Landmarks of Botany in India. Surya International Publication 223pp. Neelam Sharma & S.P.Joshi. 2008. Present status of Horistic Diversity of Mothronwala swamp forest of Doon Valley. J.bombay net ist. Soc. 105(1): 34-41. Neelam Sharma, S.P.Joshi & H.M.Pant, 2010. Restoration of mothrawala Fresh Water Swamp of Doon Valley, Uttarakhand. Resrarcher; 2(7)53-55. Johsi,S.P., Neelam Sharma, Sumanlata, Prakriti Dobhal & Smriti Sawan, 2010. Variation of tree species in response to biotic stress in fresh water swamp of Doon Valley. Jou. of American Sci 6(8): 499-502. Gautam Mandal & S.P.Joshi, 2014. Quantitative vegetation dynamics & invasion success of Lantana camera from the tropical forest of Doon Valley. Int. J. of cons Sci. 5(4): 511-526. Gautam Mandal & S.P.Joshi, 2015. Biomass Accumulation & carbon sequestration potential of dry deciduous forest. Int.J.of Ecology & dev., 30(1):64-82.

Refbacks

  • There are currently no refbacks.