Tree species composition and diversity along an altitudinal gradient in moist tropical montane valley slopes of the Garhwal Himalaya, India

다국어 초록 (Multilingual Abstract)

The study was conducted along an altitudinal gradient (1500 to 2850 m above sea level) in moist tropical montane valley slopes of the Mandal-Chopta area in the Garhwal region of India. Twelve forest types according to the altitude, slope aspect, and species compositions were selected for the study. The aims of the study were to describe and examine the structure and composition of the tree vegetation along an altitudinal gradient, and to compare the results of the present study with the other forests of Uttarakhand Himalaya growing at similar altitudinal range. High values of stem density and species diversity were recorded in mixed broad-leaved forest types growing between 1600 and 2400 m a.s.l., whereas forest types growing at higher altitudes (42400 m a.s.l.) had low species richness and stem density. Tree density (tree ha71) showed positive relationship with species richness and Shannon–Wiener diversity index. Forest types growing at higher altitude (42400 m a.s.l.) showed geometric dominance-diversity curves. The values of stem density and total basal area in most of the forest types were higher than the earlier reported values from other parts of the Uttarakhand Himalaya.

참고문헌 (Reference)

1 Agrawala NK, "Working plan for the Kedarnath Forest Division 1972–.73 to 1981–.82. Parts 1 and 2" Working Plans Circle, Nainital, Uttar Pradesh 417-, 1973

2 Tiwari JC, "Vegetational analysis along altitudinal gradient around Nainital" Kumaun University 1982

3 Kent M, "Vegetation description and analysis" Belhaven Press 1992

4 Singhal RM, "Vegetation analysis of woody species of some forests of Chakrata Himalaya-India" 112 (112): 819-832, 1986

5 Pandey JC, "Vegetation analysis in a mixed Oak- Conifer forest of Central Himalaya" 26 (26): 66-74, 2003

6 Sharma CM, "Tree diversity and carbon stocks of some major forest types of Garhwal Himalaya, India" 260 (260): 2170-2179, 2010

7 Eilu G, "Tree condition and natural regeneration in disturbed sites of Bwindi Impenetrable Forest National Park, southwestern Uganda" 46 (46): 99-101, 2005

8 Pielou EC, "The measurement of diversity in different types of biological collections" 13 : 131-144, 1966

9 Shannon CE, "The mathematical theory of communication" University of Illinois Press 117-, 1963

10 Curtis JT, "The interrelations of certain analytic and synthetic phytosociological characters" 31 (31): 434-455, 1950

11 Ramsay PM, "The growth form composition of plant communities in the Ecuadorian paramos" 131 : 173-192, 1997

12 Sharma CM, "The effect of slope aspects on the forest composition, community structure and soil nutrient status of some major natural temperate forest types of Garhwal Himalaya" 21 (21): 331-337, 2010

13 Srivastava RK, "Structure, diversity and regeneration potential of Oak dominant conifer mixed forest along an altitudinal gradient in Garhwal Himalaya" 131 (131): 1537-1553, 2005

14 Prakash C, "Structure of forest vegetation along an altitudinal gradient in the Valley of Flowers National Park and its vicinity, Western Himalaya" 7 (7): 60-69, 1999

15 Singh JS, "Structure and function of central Himalaya oak forests" 96 : 156-189, 1986

16 Dhar U, "Structural diversity and representativeness of forest vegetation in a protected area of Kumaun Himalaya, India: implications for conservation" 6 (6): 1045-1062, 1997

17 Sharma CM, "Structural composition of mixed broadleaved-coniferous forest along an altitudinal gradient in Trikuta hills of Jammu province of the Western Himalaya" 12 (12): 107-113, 1999

18 Valdiya KS, "Stratigraphic scheme of the sedimentary units of the Kumaon lesser Malayaya. In Stratigraphy and correlations of the lesser Himalayan formations" Hindustan Publication Corporation 7-48,

19 Le Brocque AF, "Species richness–.environment relationships within coastal sclerophyll and mesophyll vegetation in Ku-ring-gai Chase National Park, New South Wales, Australia" 28 : 404-412, 2003

20 Simpson GG, "Species diversity of North American recent mammals" 13 : 52-73, 1964

21 Sharma CM, "Role of physiographic factors in distribution of Abies pindrow (Silver Fir) along an altitudinal gradient in Himalayan temperate forests" 30 (30): 76-84, 2010

22 Zobel DB, "Relationships of environment to the composition, structure and diversity of forest communities of the central western cascades of Oregon" 46 (46): 135-156, 1976

23 Thadani R, "Regeneration of banj oak (Quercus leucotrichophora A. Camus) in the central Himalaya" 78 : 217-224, 1995

24 Kusumlata, "Quantitative analysis and regeneration potential of moist temperate forest in Garhwal Himalaya" 14 (14): 98-106, 1991

25 Pande PK, "Plant species diversity, composition, gradient analysis and regeneration behaviour of some tree species in a moist temperate western Himalayan forest ecosystem" 128 (128): 869-886, 2002

26 Khoshoo TN, "Plant diversity in the Himalaya: conservation and utilization. G.B. Pant Memorial Lecture II, G.B" Pant Institute of Himalayan Environment and Development, Kosi, Almora 129-, 1992

27 Ram J, "Plant diversity in six forest types of Uttaranchal, Central Himalaya, India" 86 (86): 975-978, 2004

28 Khera N, "Plant biodiversity assessment in relation to disturbances in mid-elevational forest of Central Himalaya,India.Trop Ecol.42(1):83–.95" 42 (42): 83-95, 2001

29 Sanjeev GM, "Phytosociological analysis of Arnigad micro-watershed in Mussorie hills of Garhwal Himalayas" 132 (132): 19-29, 2006

30 Kharakwal G, "Phytodiversity and growth form in relation to altitudinal gradient in the Central Himalayan (Kumaun) region of India" 89 (89): 873-878, 2005

31 Gairola S, "Phytodiversity (Angiosperms and Gymnosperms) in Mandal-Chopta forest of Garhwal Himalaya, Uttarakhand, India" 8 (8): 1-17, 2010

32 C.M. Sharma, "Physical Properties of Soils in Relation to Forest Composition in Moist Temperate Valley Slopes of the Central Western Himalaya" 산림과학연구소 26 (26): 117-129, 2010

33 Rikhari HC, "Pattern of species distribution and community characters along a moisture gradient within an oak zone of Kumaun Himalaya" 55 (55): 431-438, 1989

34 Slobodkin LB, "On the contribution of environmental predictability to species diversity" 22 : 82-95, 1969

35 Phillips EA, "Methods of vegetation study" Henry Holt and Co. Inc 107-, 1959

36 Simpson EH, "Measurement of diversity" 163 : 688-, 1949

37 Margalef DR, "Information theory in ecology" 3 : 36-71, 1958

38 Rawal RS, "High altitude forests in a part of Kumaun, Central Himalaya" 60 (60): 557-564, 1994

39 Adhikari BS, "High altitude forest: composition, diversity and profile structure in a part of Kumaun Himalaya" 32 (32): 86-97, 1991

40 Baduni NP, "Growing stock variation in different forest cover types of Pauri Garhwal" HNB Garhwal University 1996

41 Prakash R, "Forest management" International Book Distributors 214-, 1986

42 Sharma CM, "Forest dependent livelihood in relation to socio-economic status of the people in temperate villages of Garhwal Himalaya: A case study" 29 : 308-319, 2009

43 Baduni NP, "Flexibility fitness compromise in some moist temperate forests of Garhwal Himalaya" 5 : 126-135, 1997

44 Usman S, "Fine root decomposition and nitrogen mineralisation patterns in Quercus leucotrichophora and Pinus roxburghii forests in Central Himalaya" 131 : 191-199, 2000

45 Whittaker RH, "Evolution of species diversity in land plant communities" 10 : 1-67, 1977

46 Whittaker RH, "Evolution and measurement of species diversity" 21 : 213-215, 1972

47 Sharma CM, "Effect of aspects on the structure of some natural stands of Abies pindrow in Himalayan moist temperate forest" 20 (20): 309-317, 2000

48 Whittaker RH, "Dominance and diversity in land plant communities" 147 : 250-260, 1965

49 Risser PG, "Diversity in tree species in Oklahoma upland forest" 52 : 876-880, 1971

50 Pavon NP, "Distribution of plant life forms along an altitudinal gradient in the semi-arid valley of Zapotitlan, Mexico" 11 : 39-42, 2000

51 Tripathi KP, "Community structure and species diversity of Saddle Peak forests in Andaman Island" 45 (45): 241-250, 2004

52 Baduni NP, "Community structure and growing stock variation in Quercus floribunda forest on different aspects of Garhwal Himalaya" 28 (28): 82-93, 1999

53 Ghildiyal S, "Community structure and composition of Oak forests along altitudinal gradient in Garhwal Himalaya" 21 (21): 242-247, 1998

54 Putman RJ, "Community ecology" Chapman and Hall 1994

55 Sharma CM, "Community composition and population structure in temperate mixed broad-leaved and coniferous forest along an altitudinal gradient in a part of Garhwal Himalaya" 14 (14): 32-43, 2001

56 Whittaker RH, "Communities and ecosystems. 2nd Edition" MacMillan Publishing Company 1975

57 Singh SP, "Biomass productivity, leaf longevity and forest structure in the Central Himalaya" 64 : 401-421, 1994

58 Kumar A, "Anthropogenic disturbances and plant biodiversity in forest of Uttaranchal, Central Himalaya" 14 : 309-331, 2005

59 Wikum DA, "Analysis of North Dakota Gallery forest vegetation in relation to topographic and soil gradients" 44 : 441-464, 1974

60 Saxena AK, "A phytosociological analysis of woody species in forest communities of a part of the Kumaun Himalaya" 50 : 3-22, 1982