Response of<i>Pinus sibirica</i>and<i>Larix sibirica</i>to climate change in southern Siberian alpine forest–tundra ecotone

Харук, В. И.; Ranson, K.J.; Im, Sergei T.; Dvinskaya, Maria L.

doi:10.1080/02827580902845823

Cited by 65 publications

(46 citation statements)

References 32 publications

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“…Low diversity areas do not have the appropriate pool of species to continue the cycle of succession and reorganization following change, thus the system in these areas is flipped into a different state (Bengtsson et al, 2000). The results presented here are consistent with field measurements documenting the shift of treelines northward or upslope of previous climate limits, and a reduction in cone and seed yield for L. sibirica (Kharuk et al, 2009;Soja et al, 2007). They are also consistent with bioclimatic model results predicting a replacement of taiga with forest-steppe or steppe environments across southern Siberia (Tchebakova et al, 2005;Vygodskaya et al, 2007;Tchebakova et al, 2009).…”

Section: Low Diversity Regional and Local Scale Discussionsupporting

confidence: 80%

Resilience and Stability Associated with Conversion of Boreal Forest

Shuman¹,

Shugart²

2012

Remote Sensing of Biomass - Principles and Applications

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Section: Low Diversity Regional and Local Scale Discussionsupporting

confidence: 80%

Resilience and Stability Associated with Conversion of Boreal Forest

Shuman¹,

Shugart²

2012

Remote Sensing of Biomass - Principles and Applications

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“…It therefore appears that treeline performance integrates both summer and winter climatic conditions, which appear as controlling factors Rickebusch et al 2007;Harsch et al 2009;Kharuk et al 2009;Elliott 2012).…”

Section: The Population Contextmentioning

confidence: 99%

“…One reason for concern is the role of treelines as sensitive bellwethers of large-scale ecologically relevant climate change and variability in high-mountain regions (Kullman 1998;Holtmeier & Broll 2005;Kharuk et al 2009). A prevailing, although empirically unsupported paradigm is that a hypothetically warmer climate will induce a swift advance of the treeline ecotone into alpine and arctic tundra during the present century (ACIA 2005;Kaplan & New 2006).…”

Section: Introductionmentioning

confidence: 99%

“…A coupling between elevational treeline shifts and climate change and variability (mainly temperature) since the early 1910s has been inferred from retrospective studies in different parts of the world, based on various approaches such as remote sensing, age structure analyses, and observations in permanent transects (Kullman 1979;Danby & Hik 2007;Shiyatov et al 2007;Batllori & Gutiérrez 2008;Harsch et al 2009;Kharuk et al 2009;Kullman & Öberg 2009;Elliott 2011). Moreover, the recognition of a treeline as ultimately a heat deficiency phenomenon (cf.…”

Section: Introductionmentioning

confidence: 99%

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Treeline (Pinus sylvestris) landscape evolution in the Swedish Scandes – a 40-year demographic effort viewed in a broader temporal context

Kullman¹

2014

Norsk Geografisk Tidsskrift - Norwegian Journal of Geography

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Treeline (Pinus sylvestris) landscape evolution in the Swedish Scandes -a 40-year demographic effort viewed in a broader temporal context LEIF KULLMAN Kullman, L. 2014. Treeline (Pinus sylvestris) landscape evolution in the Swedish Scandes -a 40-year demographic effort viewed in a broader temporal context. Norsk Geografisk Tidsskrift-Norwegian Journal of Geography Vol. 68, 155-167. Oslo. ISSN 0029-1952. The article reports the outcome of long-term demographic monitoring of elevational treeline ecotonal stands of Scots pine (Pinus sylvestris L.) in the southern Swedish Scandes. Annual censuses were undertaken of recruitment, mortality, growth, seed viability, and causes of mortality during the period 1973-2012 in a set of 18 permanent plots. A net gain in total population size occurred over the study period as the result of periodic fluctuations in recruitment and mortality, broadly congruent with annual variations in summer and winter temperatures. Summer temperatures affected seed viability, establishment, and height growth. Winter temperatures exerted an impact foremost by changing the incidence of winter desiccation injury. As a result of infilling, pine has become a more prominent and vital component of the landscape around the forest limit, which has advanced insignificantly into the bordering mountain birch forest. The results highlight a rigid climate-forest disequilibrium and falsify models suggesting extensive and swift expansion of the treeline ecotone and closed forest at the expense of alpine tundra in response to anticipated future warming during the present century. The balance of evidence suggests that patchy forest expansion is likely to occur at a very slow (plurisecular) pace, given that climate warming prevails.

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“…Determined by the location of subfossil trees, that is, ancient, dead trees that remain well preserved (Kharuk et al, 2009) Krummholzline A subalpine transitional zone or krummholz line characterized by increasingly stunted and dwarfed trees is the norm in circumpolar and northern temperate zone mountains (Sarmiento and Frolich, 2002). Tree species limit or krummholz limit: the uppermost limit of isolated and small individuals (Finsinger and Tinner, 2007) Treeline I will use the term treeline in a general sense to refer to the transition from forests to treeless vegetation (Tuhkanen, 1993).…”

Section: Terms Definition or Expression Of Boundary Terms (Their Synomentioning

confidence: 99%

A concise scheme of vegetation boundary terms in subtropical high mountains

Chiu¹,

Lee²,

Tzeng³

et al. 2014

Afr. J. Agric. Res.

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There are numerous terms used to describe the vegetation boundary in high mountains. It is essential to define and agree on a unified usage for these terms. The literature review method had been used in this paper to clarify the vegetation boundary terms and their scopes. The result revealed that these terms were much diversified and ambiguous, and more or less related and infringed with each other in ecological concept and visible landscape, even mutually used as synonyms in some cases. We proposed a concise scheme for clarifying these terms and illustrating their relationship, including timberline [instead of previously used economic (rational, generative) forest-line, economic timberline, limit of continuous forest], forestline [instead of physiognomic (empirical, vegetative, biologic) forestline, actual timberline, physiognomic forest-limit], treeline (instead of tree limit and treeline), krummholzline (instead of tree-species line, tree species limit, krummholz limit), and historic treeline. The 5 boundary terms could facilitate the comprehension of spatial sequence of vegetation transformation in high mountains. However, all boundaries do not necessarily occur in all mountains of the world concurrently. In some papers, the term timberline or treeline once referred to the ecotone from continuous forest to tree less landscape, but the term forest-tundra ecotone should obtain more commendations when vegetation transition is much more gradual particularly around the subarctic. To avoid the confusion from using these boundary terms, we suggest that authors studying boundary related issues should interpret their scope of terminologies and provide the basic description about environment and vegetation outlines in the complex high mountains.

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Response ofPinus sibiricaandLarix sibiricato climate change in southern Siberian alpine forest–tundra ecotone

Cited by 65 publications

References 32 publications

Resilience and Stability Associated with Conversion of Boreal Forest

Resilience and Stability Associated with Conversion of Boreal Forest

Treeline (Pinus sylvestris) landscape evolution in the Swedish Scandes – a 40-year demographic effort viewed in a broader temporal context

A concise scheme of vegetation boundary terms in subtropical high mountains

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