Forest decline caused by high soil water conditions in a permafrost region
In the permafrost region near Yakutsk, eastern Siberia, Russia, annual precipitation (June–May) in 2005–2006 and 2006–2007 exceeded the 26-year (1982–2008) mean of 222±68 mm by 185 mm and 128 mm, respectively, whereas in 2007–2008 the excedent was only 48 mm, well within the range of variability. Ye...
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ftdoajarticles:oai:doaj.org/article:4c0d230e2fee4ee3a3786a9e1f61aff7 2023-05-15T17:57:12+02:00 Forest decline caused by high soil water conditions in a permafrost region H. Iwasaki H. Saito K. Kuwao T. C. Maximov S. Hasegawa 2010-02-01T00:00:00Z https://doaj.org/article/4c0d230e2fee4ee3a3786a9e1f61aff7 EN eng Copernicus Publications http://www.hydrol-earth-syst-sci.net/14/301/2010/hess-14-301-2010.pdf https://doaj.org/toc/1027-5606 https://doaj.org/toc/1607-7938 1027-5606 1607-7938 https://doaj.org/article/4c0d230e2fee4ee3a3786a9e1f61aff7 Hydrology and Earth System Sciences, Vol 14, Iss 2, Pp 301-307 (2010) Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 article 2010 ftdoajarticles 2022-12-30T23:50:39Z In the permafrost region near Yakutsk, eastern Siberia, Russia, annual precipitation (June–May) in 2005–2006 and 2006–2007 exceeded the 26-year (1982–2008) mean of 222±68 mm by 185 mm and 128 mm, respectively, whereas in 2007–2008 the excedent was only 48 mm, well within the range of variability. Yellowing and browning of larch ( Larix cajanderi Mayr.) trees occurred in an undisturbed forest near Yakutsk in the 2007 summer growing season. Soil water content at a depth of 0.20 m was measured along a roughly 400 m long line transect running through areas of yellowing and browning larch trees (YBL) and of normal larch trees (NL). In the two years of supranormal precipitation, soil water content was very high compared to values recorded for the same area in previous studies. For both wet years, the mean degree of saturation ( s ) was significantly greater in YBL than NL areas, whereas the converse was the case for the gas diffusivity in soil. This implies that rather than mitigating water stress suffered during normal precipitation years, elevated soil water conditions adversely affected the growth of larch trees. Eastern Siberia's taiga forest extends widely into the permafrost region. Was such supranormal annual precipitation to extend for more than two years, as might be expected under impending global climate changes, forest recovery may not be expected and emission of greenhouse gas might continue in future. Article in Journal/Newspaper permafrost taiga Yakutsk Siberia Directory of Open Access Journals: DOAJ Articles Yakutsk Browning ENVELOPE(164.050,164.050,-74.617,-74.617) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
spellingShingle |
Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 H. Iwasaki H. Saito K. Kuwao T. C. Maximov S. Hasegawa Forest decline caused by high soil water conditions in a permafrost region |
topic_facet |
Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
description |
In the permafrost region near Yakutsk, eastern Siberia, Russia, annual precipitation (June–May) in 2005–2006 and 2006–2007 exceeded the 26-year (1982–2008) mean of 222±68 mm by 185 mm and 128 mm, respectively, whereas in 2007–2008 the excedent was only 48 mm, well within the range of variability. Yellowing and browning of larch ( Larix cajanderi Mayr.) trees occurred in an undisturbed forest near Yakutsk in the 2007 summer growing season. Soil water content at a depth of 0.20 m was measured along a roughly 400 m long line transect running through areas of yellowing and browning larch trees (YBL) and of normal larch trees (NL). In the two years of supranormal precipitation, soil water content was very high compared to values recorded for the same area in previous studies. For both wet years, the mean degree of saturation ( s ) was significantly greater in YBL than NL areas, whereas the converse was the case for the gas diffusivity in soil. This implies that rather than mitigating water stress suffered during normal precipitation years, elevated soil water conditions adversely affected the growth of larch trees. Eastern Siberia's taiga forest extends widely into the permafrost region. Was such supranormal annual precipitation to extend for more than two years, as might be expected under impending global climate changes, forest recovery may not be expected and emission of greenhouse gas might continue in future. |
format |
Article in Journal/Newspaper |
author |
H. Iwasaki H. Saito K. Kuwao T. C. Maximov S. Hasegawa |
author_facet |
H. Iwasaki H. Saito K. Kuwao T. C. Maximov S. Hasegawa |
author_sort |
H. Iwasaki |
title |
Forest decline caused by high soil water conditions in a permafrost region |
title_short |
Forest decline caused by high soil water conditions in a permafrost region |
title_full |
Forest decline caused by high soil water conditions in a permafrost region |
title_fullStr |
Forest decline caused by high soil water conditions in a permafrost region |
title_full_unstemmed |
Forest decline caused by high soil water conditions in a permafrost region |
title_sort |
forest decline caused by high soil water conditions in a permafrost region |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doaj.org/article/4c0d230e2fee4ee3a3786a9e1f61aff7 |
long_lat |
ENVELOPE(164.050,164.050,-74.617,-74.617) |
geographic |
Yakutsk Browning |
geographic_facet |
Yakutsk Browning |
genre |
permafrost taiga Yakutsk Siberia |
genre_facet |
permafrost taiga Yakutsk Siberia |
op_source |
Hydrology and Earth System Sciences, Vol 14, Iss 2, Pp 301-307 (2010) |
op_relation |
http://www.hydrol-earth-syst-sci.net/14/301/2010/hess-14-301-2010.pdf https://doaj.org/toc/1027-5606 https://doaj.org/toc/1607-7938 1027-5606 1607-7938 https://doaj.org/article/4c0d230e2fee4ee3a3786a9e1f61aff7 |
_version_ |
1766165592218271744 |