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1 August 2017 Forest Composition and Structure Under Various Disturbance Regimes in the Alaknanda River Basin, Western Himalaya
Upma Manral, Ruchi Badola, Syed Ainul Hussain
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Abstract

This study explored the resilience of mountain forests in a protected area in Alaknanda River basin, Western Himalaya, to various disturbance scenarios. The resource dependency of village communities in the Kedarnath Wildlife Sanctuary Landscape was studied through a questionnaire survey in 10 villages situated along an elevational gradient. Vegetation sampling was done in government-owned sanctuary forests and community-owned forests, both visited by villagers. Forest community composition, regeneration status, and tree population structure were studied to understand the impact of disturbance on forests and their resistance to anthropogenic alterations. Results indicated a reduction in both fuelwood and fodder consumption with decreasing elevation, with villages at higher elevations and located inside the sanctuary depending more on forest resources. Forests showed evidence of disturbance in the form of lower basal cover, mean canopy cover, regeneration, and disturbance-influenced distribution of shrubs. However, despite the signs of secondary succession, Quercus leucotrichophora forest has retained the original tree species composition. Vegetation recovery on 3 landslide sites at varying successional stages was also studied. The old successional site had higher species richness than early successional sites. The only tree species with adult individuals recorded in early successional sites was Alnus nepalensis, an early successional nitrogen-fixing species. The community composition of the old successional site, at Bandwara, included young individuals of Q. leucotrichophora, the climax species of forests in that elevational range. The current forest structure of both disturbed forest and vegetation recovery on the old succession site indicate the resilient dynamism of native Himalayan forests. Considering the role of mountain forests in achieving sustainable development, it is imperative to study the dynamics of changes in forest community and structure in response to increasing human pressure and climate change impacts.

© 2017 Manral et al. This open access article is licensed under a Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/). Please credit the authors and the full source.
Upma Manral, Ruchi Badola, and Syed Ainul Hussain "Forest Composition and Structure Under Various Disturbance Regimes in the Alaknanda River Basin, Western Himalaya," Mountain Research and Development 37(3), 310-322, (1 August 2017). https://doi.org/10.1659/MRD-JOURNAL-D-16-00109.1
Received: 1 April 2017; Accepted: 1 May 2017; Published: 1 August 2017
KEYWORDS
Agenda 2030
Anthropogenic disturbance
elevation
Kedarnath Wildlife Sanctuary
regeneration
resilience
resource dependency
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