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Structure, composition and diversity of forest along the altitudinal gradient in the Himalayas, Nepal

Title data

Pandey, K. P. ; Adhikari, Yagya ; Weber, M.:
Structure, composition and diversity of forest along the altitudinal gradient in the Himalayas, Nepal.
In: Applied Ecology and Environmental Research. Vol. 14 (2016) Issue 2 . - pp. 235-251.
ISSN 1785-0037
DOI: https://doi.org/10.15666/aeer/1402_235251

Abstract in another language

The aimof this study was to assess the structure (stemdensity, height, and basalarea), compositionand diversity in relatively undisturbed forestsalong an altitudinal gradient from 2000 m asl to 3900 m asl of Langtang National Park in Central Himalaya. The forest stands along thealtitudinal gradientwere studied on 20 sampling plots of two sub zones of the Temperateand Subalpinezone. Tsuga dumosawas the ecologically most important species in the Upper andthe Lower Subalpinezone with high important value index (IVI = 124.31).Quercussemecarpifoliaand Lithocarpus eleganswere the ecologicallymost important species in the Upper and the Lower Temperatezone with IVI of 66.64 and 46.39respectively. Similarly, indicator species’ analysis was performed to know the preferences of tree species within the vegetation zones.Rhododendron campanulatum is highly significant (p< 0.001) andTsuga dumosasignificant (0.05 <p< 0.01)in the Upper Subalpinezone,whereas Rhododendron anthopogon prefers the Lower Subalpinezone with significant value (0.01 <p< 0.001). Only the Quercus semecarpifoliaprefers the Upper Temperatezone.There was no specific trend in the structure along the altitudinal gradient. The Shannon diversity index ranged from 1.10 to 2.34 with the highest valuein the Lower Temperatezone. Both Simpson index (0.89) and Evenness(0.86)werehigh in the Lower Temperatezone.From this study it is concluded that the contribution of forest compositionin terms of species richness and Shannon diversityis significant in Lower Temperatezone. The Upper Subalpinezone has less diversity and may also be less endangered by human impact but may profit from climate change in the future.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER148020
Keywords: vegetation zone; density; basal area; diversity; altitudinal gradient; Nepal
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Biogeography
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Biogeography > Chair Biogeography - Univ.-Prof. Dr. Carl Beierkuhnlein
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Result of work at the UBT: No
DDC Subjects: 500 Science
Date Deposited: 09 Apr 2019 06:25
Last Modified: 22 Oct 2019 12:01
URI: https://eref.uni-bayreuth.de/id/eprint/48340