IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2015  > Vol12 No.3
Contemporary and Historic Population Structure of Abies spectabilis at Treeline in Barun Valley, Eastern Nepal Himalaya
Parveen Kumar CHHETRI; David M.CAIRNS
Corresponding AuthorParveen Kumar CHHETRI
2015-05
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume12Issue:3Pages:558-570
Subtype期刊论文
AbstractTreeline ecotone dynamics of Abies spectabilis(D. Don) Mirb.in the Barun valley, Makalu Barun National Park, eastern Nepal Himalaya were studied by establishing seven plots (20 m × variable length) from the forestline to the tree species limit: three plots on the south- and north-facing slopes each (S1-S3, N1-N3), and one plot on the east-facing slope (E) in the relatively undisturbed forests. A dendroecological method was used to study treeline advance rate and recruitment pattern. In all the plots, most trees established in the early 20th century, and establishment in the second half of the 20th century was confined to the forestline area. Treeline position has not advanced substantially in the Barun valley, with only 22 m average elevational shift in the last 130 years, and with average current shifting rate of 14 cm/yr. Moreover, no significant relationship was found between tree age and elevation on the south-, north-, and east-facing slopes. The number of seedlings and saplings in near the treeline area was negligible compared to that near the forestline area. Therefore, A. spectabilis treeline response to the temperature change was slow, despite the increasing temperature trend in the region. Beside the temperature change, factors such as high inter-annual variability in temperature, dense shrub cover, and local topography also play an important role in treeline advance and controlling recruitment pattern above the treeline.
KeywordClimate Change Treeline Ecotone Treeline Advance Recruitment Pattern
DOI10.1007/s11629-015-3454-5
Indexed BySCI
Language英语
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9091
CollectionJournal of Mountain Science_Journal of Mountain Science-2015_Vol12 No.3
Corresponding AuthorParveen Kumar CHHETRI
Recommended Citation
GB/T 7714
Parveen Kumar CHHETRI,David M.CAIRNS. Contemporary and Historic Population Structure of Abies spectabilis at Treeline in Barun Valley, Eastern Nepal Himalaya[J]. Journal of Mountain Science,2015,12(3):558-570.
APA Parveen Kumar CHHETRI,&David M.CAIRNS.(2015).Contemporary and Historic Population Structure of Abies spectabilis at Treeline in Barun Valley, Eastern Nepal Himalaya.Journal of Mountain Science,12(3),558-570.
MLA Parveen Kumar CHHETRI,et al."Contemporary and Historic Population Structure of Abies spectabilis at Treeline in Barun Valley, Eastern Nepal Himalaya".Journal of Mountain Science 12.3(2015):558-570.
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