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Dissertations / Theses on the topic 'Timberline Timberline Timberline Boomgrens'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Knoll, Michelle K. "Prehistoric timberline adaptations in the eastern Uinta mountains, Utah /." Diss., CLICK HERE for online access, 2003. http://contentdm.lib.byu.edu/ETD/image/etd278.pdf.

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2

Knoll, Michelle. "Prehistoric Timberline Adaptations in the Eastern Uinta Mountains, Utah." BYU ScholarsArchive, 2003. https://scholarsarchive.byu.edu/etd/102.

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Excavations at a high altitude archaeological site (3350 m) in the eastern Uinta Mountains, Utah, uncovered at least three ephemeral brush structures. These temporary timberline dwellings are the highest structures excavated in Utah to date. The periods of occupation range from the early Fremont period to the post-contact era. It is believed that the Fremont occupations are logistical in nature, possibly representing male hunting parties. Logistical camps imply a departure from, and return to, a residential camp. Ethnographic studies show that most residential camps are located within proxi

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3

Schrag, Anne Michelle. "Climate variability and treeline dynamics in Yellowstone and Grand Teton National Parks." Thesis, Montana State University, 2006. http://etd.lib.montana.edu/etd/2006/schrag/SchragA1206.pdf.

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4

Johnson, Adelaide Chapman. "The role of wood microsites at timberline-alpine meadow borders for conifer regeneration." Thesis, Portland State University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3593581.

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<p> This research aimed to determine whether wood microsites ("nurse logs"), which are regeneration sites in Pacific Northwest (PNW) subalpine forests, supported regeneration at timberline-alpine meadow borders. Upward advance of forests and conifer invasion into alpine meadows, which may be occurring in conjunction with climate warming, have gained worldwide attention. Successful alpine meadow seedling regeneration depends on suitable substrate availability, or microsites, for seedling establishment. To better understand factors associated with wood microsite occurrence, mechanisms of wood

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5

Fall, Patricia Lynn. "Vegetation dynamics in the southern Rocky Mountains: Late Pleistocene and Holocene timberline fluctuations." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184610.

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Plant macrofossils and pollen from six small basins in western Colorado are used to trace the history of vegetation and climate over the last 15,000 years. The late-glacial upper timberline was 2800 m, and sparse krummholz Picea grew up to 3200 m. Summer temperatures were 3° to 5°C cooler than today. The late Pleistocene climate was influenced by winter storms from the Pacific. Precipitation shifted to a summer-dominated pattern by at least 9000 yr B.P. with the development of the summer monsoon. Plant fossils from bogs and lakes located near modern ecotones track the elevations of the tempera

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6

Autio, J. (Jyrki). "Environmental factors controlling the position of the actual timberline and treeline on the fells of Finnish Lapland." Doctoral thesis, University of Oulu, 2006. http://urn.fi/urn:isbn:9514280075.

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Abstract Air and soil temperatures, snow cover, serious snow load damage to coniferous trees, wind, topography and edaphic factors on the fells situated between 67°N and 68°N in Finnish Lapland are described and their influence on the location of the actual timberline and treeline is discussed. In addition the relation between annual climate conditions and pollen deposition in the timberline ecotone is analysed and the results of seedling density monitoring in the same environment are presented. The potential for the actual timberline and treeline to advance to a higher elevation is also discu

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7

Bunn, Andrew Godard. "Temporal and spatial patterns at alpine treeline in the Sierra Nevada USA implications for global change /." Diss., Restricted to MSU On campus access only, 2004. http://etd.lib.montana.edu/etd/2004/bunn/BunnA0805.pdf.

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8

Mellmann-Brown, Sabine. "The regeneration of whitebark pine in the timberline ecotone of the Beartooth Plateau, Montana and Wyoming." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=967353505.

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9

Backmeroff, Christa E. "Dendroecology, history and dynamics of mixed woodlands at the upper timberline of the central Italian Alps." Thesis, Bangor University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271282.

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10

Brodersen, Craig Robert. "Photosynthetic carbon gain on an episodically dry year in Abies lasiocarpa and Picea engelmannii across a treeline ecotone /." Electronic thesis, 2003. http://etd.wfu.edu/theses/available/etd-12032003-171104/.

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11

Schwindt, Daniel [Verfasser], Christof [Gutachter] Kneisel, and Birgit [Gutachter] Terhorst. "Permafrost in ventilated talus slopes below the timberline - A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps / Daniel Schwindt. Gutachter: Christof Kneisel ; Birgit Terhorst." Würzburg : Universität Würzburg, 2013. http://d-nb.info/111204003X/34.

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12

Tsai, Chia-Jung, and 蔡佳容. "The Characteristics of Timberline in Chiaming Lake Region." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/72079460376536763678.

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碩士<br>國立中山大學<br>生物科學系研究所<br>101<br>There is an upper limit of closed forest called timberline, represents one of the most obvious vegetation boundaries in montane region. The closure may not end abruptly as a line, but occurs in a gradual decline of tree size, irregular opening of the canopy from forest to the treeless alpine vegetation, or other patterns. As different forms of timberlines may occur in close proximity to each other, even on a single mountain top, it seems likely that the local environmental factors played an more important role other than climate. This study identified three f

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13

Wood, Ann Claggett. "Mount Hood's Timberline Lodge: An introduction to its architects and architecture." Thesis, 1997. http://hdl.handle.net/1911/17143.

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Mount Hood's Timberline Lodge built in 1936 and 1937 is the realization of the collective goals of the influential Portland businessmen of the Mount Hood Recreational Association, the United States Department of Agriculture Forest Service, and the Works Progress Administration. The resolution of the sometimes conflicting needs and aspirations of these organizations contributed to the selection of the talented architectural team responsible for the design of the lodge. The consulting architect Gilbert Stanley Underwood participated in the initial development of the Timberline Lodge project, and

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14

Vance, Marie. "Population genomics of a timberline conifer, subalpine larch (Larix lyallii Parl.)." Thesis, 2019. http://hdl.handle.net/1828/11433.

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Subalpine larch (Larix lyallii Parl.) has a narrow ecological niche at timberline in the Cascade Range and the Rocky Mountains of western North America. Demographic factors, including a long generation time (average 500 years) and a late arrival at sexual maturity (100-200 years), make it unlikely that this species will be able to adapt to predicted climate change. A better understanding of genetic structure and genetic diversity is necessary in order to effectively manage this species for future generations. Foliage from 62 populations of subalpine larch was collected in order to elucidate th

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15

Mellmann-Brown, Sabine [Verfasser]. "The regeneration of whitebark pine in the timberline ecotone of the Beartooth Plateau, Montana and Wyoming / vorgelegt von Sabine Mellmann-Brown, geb. Mellmann." 2002. http://d-nb.info/967353505/34.

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16

Vágner, Tomáš. "Historická poloha horní hranice lesa v Krkonoších odvozená ze starých map a fotografií." Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-325081.

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The purpose of the diploma thesis is the analysis of alpine timberline shifts in the Giant Mountains between 18th and 21st century. The altitudinal position of alpine timberline is a sensitive indicator which reflects human impacts as well as the climatic changes. Methodical approach included the reconstruction of alpine timberlines from the old maps (published in 1765, 1851-52, 1879, 1906) and their comparison with the newer data, which were evaluated from a series of aerial photographs dated 1936 and 2002 (actualized 2005; data provided by supervisor). Data obtained from the old maps and aer

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17

Schwindt, Daniel. "Permafrost in ventilated talus slopes below the timberline - A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps." Doctoral thesis, 2013. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-90099.

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In the central Alps permafrost can be expected above 2300 m a.s.l., at altitudes where mean annual air temperatures are below -1 °C. Isolated permafrost occurrences can be detected in north-exposed talus slopes, far below the timberline, where mean annual air temperatures are positive. Driving factors are assumed to be a low income of solar radiation, a thick organic layer with high insulation capacities as well as the thermally induced chimney effect. Aim of this study is to achieve a deeper understanding of the factors determining the site-specific thermal regime, as well as the spatially li

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18

Dobíhal, Michal. "Ústup budního hospodářství a dynamika sukcese lesa v Krkonoších." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-388358.

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Response of forest succession to agricultural land-abandonment in the Giant Mountains ABSTRACT: Since the end of the 19th century, there is undergoing process of land-abandonment of mountain meadows and pastures in most of the European mountains, including the Giant Mountains. Mountain agriculture in the Giant Mountains was terminated no later than before World War II. Abandoned meadows were then subjected to secondary forest succession. The question is, how fast was this succession and how was its dynamics. My research was focused on 4 areas of interest, located in the vicinity of former moun

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