Tree line shifts, changing vegetation assemblages and permafrost dynamics on Galdhøpiggen (Jotunheimen, Norway) over the past ~4400 years
Bibliographic Data
| ID | 12266146 |
|---|---|
| Authors | Helen Hallang (0000-0002-2425-8247, Swansea University, corresponding author), Cynthia A Froyd (0000-0001-5291-9156, Swansea University), John F Hiemstra (0000-0003-3148-0206, Swansea University), S O Los (0000-0002-1325-3555, Swansea University) |
| Year | 2021 |
| Volume | 32 |
| Issue | 4 |
| Pages | 308-320 |
| Publication date | 2021-12-29 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | The Holocene (JOURNAL) |
| Journal identifiers | ISSN: 0959-6836 • E-ISSN: 1477-0911 |
| Publisher | SAGE Publishing (PUBLISHER • US) |
| DOI | 10.1177/09596836211066591 |
| OpenAlex | W4200575114 |
| Language | EN |
| Citations received | 3 |
| References cited | 56 |
An environmental reconstruction based on palynological evidence preserved in peat was carried out to examine late-Holocene alpine tree line dynamics in the context of past climatic changes on Galdhøpiggen (Jotunheimen, southern Norway). We analysed a peat core taken from a mire at the present-day tree line (1000 m a.s.l.), c. 450 m downslope from the lower limit of sporadic permafrost. We adopted a combination of commonly used indicators of species’ local presence to reconstruct past vegetation assemblages, such as the relative pollen abundance (%), pollen accumulation rate (PAR), and presence of indicator species. Additionally, fossil pollen from the peat sequence was compared to modern pollen from a surface moss polster to establish a modern analogue. The results were compared with studies covering the late-Holocene climatic changes in the area. The reconstruction demonstrates that a pine-dominated woodland reached above the present-day tree line at c. 4300 cal. yr BP, suggesting a warmer climate suitable for Scots pine ( Pinus sylvestris) growth at this altitude. Scots pine retreated to lower altitudes between c. 3400 and 1700 cal. yr BP, accompanied by the descent of the low-alpine shrub-dominated belt, in response to cooling climatic conditions. The colder period covered c. 1700–170 cal. yr BP, and an open downy birch ( Betula pubescens) woodland became widespread at 1000 m a.s.l., whilst pine remained sparse at this altitude. From c. 170 cal. yr BP onwards, warming allowed pine to re-establish its local presence alongside downy birch at 1000 m a.s.l
Betula pubescens · Biology · Botany · Climate change · Context (archaeology · Geography · Holocene · Holocene climatic optimum · Mire · Palynology · Peat · Physical geography · Pinus · Pollen · Scots pine · Sphagnum · Tree line · Vegetation (pathology · Woodland · Climate change and permafrost · Geology and Paleoclimatology Research · Tree-ring climate responses · Ecology · Geology · Oceanography · Paleontology
The use of annual arboreal pollen deposition values for delimiting tree-lines in the landscape and exploring models of pollen dispersal
Methods and code for ‘classical’ age-modelling of radiocarbon sequences
Future uses of pollen analysis must include plant macrofossils
Pollen et spores d'Europe et d'Afrique du Nord
Coniss
Surface pollen deposition on glacier forelands in southern Norway II
Pollen productivity estimates from the forest—tundra ecotone in west-central Sweden
Use of ecological indicator values to investigate successional change in boreal to high-alpine glacier-foreland chronosequences, southern Norway
Recent increases in species richness and shifts in altitudinal distributions of Norwegian mountain plants
Surface pollen deposition on glacier forelands in southern Norway I
Holocene glacier variation chronology of the Smørstabbtindan massif, Jotunheimen, southern Norway, and the recognition of century- to millennial-scale European Neoglacial Events
Pollen accumulation rates as a tool for detecting land-use changes in a sparsely settled boreal forest
Holocene forest development along the Setesdal valley, southern Norway, reconstructed from macrofossil and pollen evidence
Can we detect a west Norwegian tree line from modern samples of plant remains and pollen? Results from the Doormat project
Comparing pollen spectra from modified Tauber traps and moss samples
Vegetation and environment of the Rødalen alpine area, Central Norway, with emphasis on the early Holocene
When no pollen does not mean no trees
IntCal13 and Marine13 Radiocarbon Age Calibration Curves 0–50,000 Years cal BP
Extended 14 C Data Base and Revised Calib 3.0 14 C Age Calibration Program
Atmospheric Radiocarbon for the Period 1950–2010
The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)
| Unique citing works | 3 |
|---|---|
| Citations per year | 0.75 |
| Citation span | 2022 - 2026 (5) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 3 |