Effects of disturbance intensities on vegetation patterns in oak forests of Kumaun, west Himalaya
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- 作者：Ranbeer S. Rawal (1)
Sanjay Gairola (2)
Uppeandra Dhar (3) - 关键词：Forest vegetation ; Anthropogenic disturbance ; Oak forests ; west Himalaya
- 刊名：Journal of Mountain Science
- 出版年：2012
- 出版时间：April 2012
- 年：2012
- 卷：9
- 期：2
- 页码：157-165
- 全文大小：208KB
- 参考文献：1. Adhikari BS, Rikhari HC, Rawat YS, Singh SP (1991). High altitude forest: composition, diversity and profile structure in a part of Kumaun Himalaya. Tropical Ecology 32: 86鈥?7.
2. Barik SK, Tripathi RS, Pandey HN, Rao P (1996). Tree regeneration in a subtropical humid forest: effect of cultural disturbance on seed production, dispersal and germination. Journal of Applied Ecology 33: 1551鈥?560. CrossRef
3. Berkmuller K, Mukherjee SK, Mishra BK (1990). Grazing and cutting pressure on Ranthambhore National Park, India. Environmental Conservation 17: 53鈥?8. CrossRef
4. Bhuyan P, Khan ML, Tripathi RS (2003). Tree diversity and population structure in undisturbed and human-impacted stands of tropical wet evergreen forest in Arunachal Pradesh, Eastern Himalayas, India. Biodiversity and Conservation 12: 1753鈥?773. CrossRef
5. Bonfil C, Soberon J (1999). / Quercus rugosa seedling dynamics in relation to its re-introduction in a disturbed Mexican landscape. Applied Vegetation Science 2: 189鈥?00. CrossRef
6. Boring LR, Monk CD, Swank WT (1981). Early regeneration of a clear cut southern Appalachian Forest. Ecology 62: 1244鈥?253. CrossRef
7. Clark DB (1991). Answers to Amazonian deforestation. In Anderson AB (ed.), Review of Alternatives to deforestation: steps towards sustainable use of the Amazon Rain Forest. Columbia University Press, New York, USA.
8. Connell JH (1978). Diversity in tropical rain forest and coral reefs. Science 199: 1302鈥?310. CrossRef
9. Curtis JT (1959). The Vegetation of Wisconsin: An Ordination of Plant Communities. University of Wisconsin Press, Madison, Wisconsin, USA.
10. Dhar U, Rawal RS, Samant SS (1997). Structural diversity and representativeness of forest vegetation in a protected area of Kumaun Himalaya, India: implications for conservation. Biodiversity and Conservation 6: 1045鈥?062. CrossRef
11. Gairola S, Rawal RS, Dhar U (2009). Patterns of litterfall and return of nutrients across anthropogenic disturbance gradients in three subalpine forests of west Himalaya, India. Journal of Forest Research 14:73鈥?0. CrossRef
12. Gomez JM, Gracia D, Zamora R (2003). Impact of vertebrate acorn and seedling 鈥?predators on a Mediterranean / Q. pyrenaica forest. Forest Ecology and Management 180: 125鈥?34. CrossRef
13. Kelt DA, Valone TJ (1995). Effects of grazing in the abundance and diversity of annual plants in Chinuahaun desert scrub habitat. Oecologia 103: 191鈥?95. CrossRef
14. Khan ML, Rai JPN, Tripathi RS (1987). Population structure of some tree species in disturbed and protected sub-tropical forests of North-east India. Acta Oecologica Oecologia Applicata 8: 247鈥?55.
15. Khera N, Kumar A, Ram J, Tiwari A (2001). Plant biodiversity assessment in relation to disturbances in mid elevational forest of Central Himalaya. Tropical Ecology 42: 83鈥?5.
16. Kouki J (1994). Biodiversity in Fennoscandian boreal forests: natural variation and its management. Annales Zoologici Fennici 31: 3鈥?.
17. Kumar A, Ram J (2005). Anthropogenic disturbances and plant biodiversity in forests of Uttaranchal, central Himalaya. Biodiversity Conservation 14: 309鈥?31. CrossRef
18. Larsen DR, Johnson PS (1998). Linking the ecology of natural oak regeneration to silviculture. Forest Ecology and Management 106: 1鈥?. CrossRef
19. Maram Kuba M, Khan ML (1998). Regeneration status of trees in various categories of forests in Manipur. Journal of Hill Research 11: 178鈥?82.
20. Metz JJ (1997). Vegetation dynamics of several little disturbed temperate forest in east central Nepal. Mountain Research and Development 17: 333鈥?1. CrossRef
21. Mishra BP, Tripathi OP, Tripathi RS, Pandey HN (2004). Effects of anthropogenic disturbance on plant diversity and community structure of a sacred grove in Meghalaya, northeast India. Biodiversity and Conservation 13: 421鈥?36. CrossRef
22. Misra R (1968). Ecology Work book. Oxford and IBH Publishing Co. Calcutta.
23. Muller Dombois D, Ellenberg H (1974). Aims and methods of vegetation ecology. John Wiley & Sons, Inc..
24. Negi AS, Negi GCS, Singh SP (1996). Establishment and growth of / Q. floribunda seedlings after a mast year. Journal of Vegetation Science 7: 559鈥?64. CrossRef
25. Raghubanshi AS, Tripathi A (2009). Effect of disturbance, habitat fragmentation and alien invasive plants on floral diversity in dry tropical forests of Vindhyan highland: a review. Tropical Ecology 50(1): 57鈥?9.
26. Ram J, Kumar A, Bhatt J (2004). Plant diversity in six forest types of Uttaranchal, Central Himalaya, India. Current Science 86: 975鈥?78.
27. Rikhari HC, Adhakari BS (1998). Population structure and protective value of temperate forests in a part of central Himalaya. Journal of Sustainable Forestry 7: 5鈥?1. CrossRef
28. Saberwal VK (1995). Pastoral politics: Gaddi grazing, degradation and biodiversity conservation in Himachal Pradesh, India. Conservation Biology 10: 741鈥?49. j.1523-1739.1996.10030741.x">CrossRef
29. Saxena AK, Singh JS (1984). Tree population structure of certain Himalayan forest, associations and implications concerning their future composition. Vegetatio 58: 61鈥?9. CrossRef
30. Saxena AK, Singh JS (1982). A phytosociological analysis of forest communities of part of Kumaun Himalaya. Vegetatio 50: 3鈥?2. CrossRef
31. Sayer JA, Whitmore TC (1991). Tropical moist forests: destruction and species extinction. Biological Conservation 55: 119鈥?14. CrossRef
32. Shannon CZ, Wiener W (1963). The Mathematical Theory of Communication. University of Illinois Press, Urbana, Illinois, USA.
33. Silori CS (2001). Status and distribution of anthropogenic pressure in the buffer zone of Nanda Devi Biosphere Reserve in western Himalaya, India. Biodiversity and Conservation 10: 1113鈥?130. CrossRef
34. Singh JS, Singh SP (1987). Forest vegetation of the Himalaya. Botanical Review 53: 80鈥?92. CrossRef
35. Singh JS, Singh SP (1992). Forests of Himalaya. Gyanodaya Prakashan, Nainital, Uttarakhand, India.
36. Singh SP, Singh JS (1986). Structure and function of the Central Himalayan oak forests. In: Proceedings of Indian Academy of Science (Plant Sc.) 96: 159鈥?89.
37. Singh SP (1998). Chronic disturbance, a principal cause of environmental degradation in developing countries. Environmental Conservation 25: 1鈥?. CrossRef
38. Singh SP, Ralhan PK (1985). Stability of Himalayan climax oak forests in view of resilience hypothesis. Environmental Conservation 12: 73鈥?5. CrossRef
39. Singh SP, Adhikari BS, Zobel DB (1994). Biomass, Productivity, Leaf longevity and forest structure in the Central Himalaya. Ecological Monograph 64: 401鈥?21. CrossRef
40. Singh SP, Rawat YS, Garkoti SC (1997). Failure of brown oak ( / Quercus semecarpifolia) to regenerate in central Himalaya: a case of environmental semi-surprise. Current Science 73: 371鈥?74.
41. Smiet AC (1992). Forest ecology of Java: human impact and vegetation of montane forest. Journal of Tropical Ecology 8: 129鈥?52. CrossRef
42. Snedecor GW, Cochran WG (1967). Statistical Methods. The Iowa State University Press, Iowa, USA.
43. Thadani R, Ashton PMS (1995). Regeneration of banj oak ( / Quercus leucotrichophora A. Camus) in the central Himalaya. Forest Ecology and Management 78: 217鈥?24. CrossRef
44. Tiwari JC, Singh SP (1985). Analysis of woody vegetation in a mixed Oak forest of Kumaun Himalaya. In: Proceeding of Indian National Science Academy 51: 232鈥?47.
45. Upreti N, Tewari JC, Singh SP (1985). The oak forests of Kumaun Himalaya (India): composition, diversity, and regeneration. Mountain Research Development 5: 163鈥?74. CrossRef
46. Vetaas OR (2000). The effects of environmental factors on regeneration of / Quercus semecarpifolia Sm. in central Himalaya, Nepal. Plant Ecology 146: 137鈥?4. CrossRef
47. Whittaker RH (1975). Communities and Ecosystem 2nd edition. MacMillan Publishing Co. Inc., New York, USA.
48. Zobel DB, Singh SP (1997). Himalayan forests and ecological generalizations. BioScience 47: 735鈥?45. CrossRef - 作者单位：Ranbeer S. Rawal (1)
Sanjay Gairola (2)
Uppeandra Dhar (3)
1. G. B. Pant Institute of Himalayan Environment and Development, Kosi-Katarmal, 263 643, Almora, Uttarakhand, India
2. School of Agriculture, Earth and Environmental Sciences, University of KwaZulu-Natal, Westville Campus, Private Bag x54001, Durban, 4000, South Africa
3. Department of Botany, Hamdard University (Jamia Hamdard), New Delhi, 110 062, India - ISSN：1993-0321
文摘
In order to realize the significance of oak forests for ecology and economy of the Himalayan region, the present study attempts to objectively characterize disturbance intensities and their impacts on compositional features of identified Oak forests, i.e. Banj-oak (Quercus leucotrichophora A. Camus), Tilonj-oak (Q. floribunda Lindley) and Kharsu-oak (Q. semecarpifolia J. E. Smith) in west Himalaya. Amongst studied forests, Q. leucotrichophora and Q. semecarpifolia forests exhibited high sensitivity towards disturbance intensities. In both forests, increasing level of disturbance significantly lowered tree density, dominance and natural recruitment (seedling and sapling density). Q. floribunda forests, however, appeared relatively more resilient to anthropogenic disturbances. Amongst studied oak forests, Q. semecarpifolia forests with overall poor natural regeneration are in a most critically endangered demographic state. However, a slightly improved regeneration (i.e., seedling density) in moderately disturbed plots is indicative that such plots may be utilized most suitably for in situ revival of these forests. Effect of disturbance intensities on tree population is an important subject for forest ecology and management and the present study highlights a need for adopting different management strategies across disturbance intensities in diverse oak forests of west Himalaya.