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Holocene land degradation and climatic change in northeastern Iceland

Olafsdottir, Rannveig LU and Guomundsson, HJ (2002) In The Holocene 12(2). p.159-167
Abstract
The spatial and temporal pattern of land degradation in northeastern Iceland during the Holocene is analysed in relation to climatic fluctuations. Tephrochronology is used to date the infer-red terrestrial changes. and remote sensing and geographical information systems to assess the dynamic relationships between topographic relief. geomorphic processes and soil structure. Changes in vegetation and soil cover during the Holocene are found to he more dynamic than previously reported, highlighted by three substantial degradation phases, two of which occurred prior to the recorded Viking settlement in the ninth century AD, c. 5000 BP and c. 2500 BP. The results demonstrate the role of climate in modifying land cover, hence triggering land... (More)
The spatial and temporal pattern of land degradation in northeastern Iceland during the Holocene is analysed in relation to climatic fluctuations. Tephrochronology is used to date the infer-red terrestrial changes. and remote sensing and geographical information systems to assess the dynamic relationships between topographic relief. geomorphic processes and soil structure. Changes in vegetation and soil cover during the Holocene are found to he more dynamic than previously reported, highlighted by three substantial degradation phases, two of which occurred prior to the recorded Viking settlement in the ninth century AD, c. 5000 BP and c. 2500 BP. The results demonstrate the role of climate in modifying land cover, hence triggering land degradation without anthropogenic influence. However, anthropogenic activity probably had a significant role in the acceleration of the third degradation phase in the sixteenth century AD, when the system was possibly forced beyond its threshold of recovery, resulting in land degradation on a catastrophic scale. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
long-term analysis, climatic change, geomorphology, tephrochronology, land degradation, soil erosion, Holocene, Iceland
in
The Holocene
volume
12
issue
2
pages
159 - 167
publisher
SAGE Publications Inc.
external identifiers
  • wos:000174308000004
  • scopus:0036195610
ISSN
0959-6836
DOI
10.1191/0959683602hl531rp
language
English
LU publication?
yes
id
8f7ca823-75f5-49d3-8d3a-2954794c3fb0 (old id 342341)
date added to LUP
2007-11-08 08:10:16
date last changed
2017-09-03 03:52:04
@article{8f7ca823-75f5-49d3-8d3a-2954794c3fb0,
  abstract     = {The spatial and temporal pattern of land degradation in northeastern Iceland during the Holocene is analysed in relation to climatic fluctuations. Tephrochronology is used to date the infer-red terrestrial changes. and remote sensing and geographical information systems to assess the dynamic relationships between topographic relief. geomorphic processes and soil structure. Changes in vegetation and soil cover during the Holocene are found to he more dynamic than previously reported, highlighted by three substantial degradation phases, two of which occurred prior to the recorded Viking settlement in the ninth century AD, c. 5000 BP and c. 2500 BP. The results demonstrate the role of climate in modifying land cover, hence triggering land degradation without anthropogenic influence. However, anthropogenic activity probably had a significant role in the acceleration of the third degradation phase in the sixteenth century AD, when the system was possibly forced beyond its threshold of recovery, resulting in land degradation on a catastrophic scale.},
  author       = {Olafsdottir, Rannveig and Guomundsson, HJ},
  issn         = {0959-6836},
  keyword      = {long-term analysis,climatic change,geomorphology,tephrochronology,land degradation,soil erosion,Holocene,Iceland},
  language     = {eng},
  number       = {2},
  pages        = {159--167},
  publisher    = {SAGE Publications Inc.},
  series       = {The Holocene},
  title        = {Holocene land degradation and climatic change in northeastern Iceland},
  url          = {http://dx.doi.org/10.1191/0959683602hl531rp},
  volume       = {12},
  year         = {2002},
}