(Table 1) Tree age, post fire stand age, and soil organic matter thickness in the western Quebec black spruce boreal ecosystem
The observed long-term decrease in the regional fire activity of Eastern Canada results in excessive accumulation of organic layer on the forest floor of coniferous forests, which may affect climate-growth relationships in canopy trees. To test this hypothesis, we related tree-ring chronologies of b...
Main Authors: | , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2010
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.809315 https://doi.org/10.1594/PANGAEA.809315 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.809315 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.809315 2023-05-15T16:53:58+02:00 (Table 1) Tree age, post fire stand age, and soil organic matter thickness in the western Quebec black spruce boreal ecosystem Drobyshev, Igor Simard, Martin Bergeron, Yves Hofgaard, Annika MEDIAN LATITUDE: 49.500000 * MEDIAN LONGITUDE: -78.750000 * SOUTH-BOUND LATITUDE: 49.000000 * WEST-BOUND LONGITUDE: -79.000000 * NORTH-BOUND LATITUDE: 50.000000 * EAST-BOUND LONGITUDE: -78.500000 * MINIMUM ELEVATION: 250.0 m * MAXIMUM ELEVATION: 400.0 m 2010-03-22 text/tab-separated-values, 96 data points https://doi.pangaea.de/10.1594/PANGAEA.809315 https://doi.org/10.1594/PANGAEA.809315 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.809315 https://doi.org/10.1594/PANGAEA.809315 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Drobyshev, Igor; Simard, Martin; Bergeron, Yves; Hofgaard, Annika (2010): Does Soil Organic Layer Thickness Affect Climate-Growth Relationships in the Black Spruce Boreal Ecosystem? Ecosystems, 13(4), 556-574, https://doi.org/10.1007/s10021-010-9340-7 Age relative number of years standard deviation BIO Biology Canada International Polar Year (2007-2008) IPY Organic matter layer thickness Site W-Quebec Dataset 2010 ftpangaea https://doi.org/10.1594/PANGAEA.809315 https://doi.org/10.1007/s10021-010-9340-7 2023-01-20T09:00:53Z The observed long-term decrease in the regional fire activity of Eastern Canada results in excessive accumulation of organic layer on the forest floor of coniferous forests, which may affect climate-growth relationships in canopy trees. To test this hypothesis, we related tree-ring chronologies of black spruce (Picea mariana (Mill.) B.S.P.) to soil organic layer (SOL) depth at the stand scale in the lowland forests of Quebec's Clay Belt. Late-winter and early-spring temperatures and temperature at the end of the previous year's growing season were the major monthly level environmental controls of spruce growth. The effect of SOL on climate-growth relationships was moderate and reversed the association between tree growth and summer aridity from a negative to a positive relationship: trees growing on thin organic layers were thus negatively affected by drought, whereas it was the opposite for sites with deep (>20-30 cm) organic layers. This indicates the development of wetter conditions on sites with thicker SOL. Deep SOL were also associated with an increased frequency of negative growth anomalies (pointer years) in tree-ring chronologies. Our results emphasize the presence of nonlinear growth responses to SOL accumulation, suggesting 20-30 cm as a provisional threshold with respect to the effects of SOL on the climate-growth relationship. Given the current climatic conditions characterized by generally low-fire activity and a trend toward accumulation of SOL, the importance of SOL effects in the black spruce ecosystem is expected to increase in the future. Dataset International Polar Year IPY PANGAEA - Data Publisher for Earth & Environmental Science Canada ENVELOPE(-79.000000,-78.500000,50.000000,49.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age relative number of years standard deviation BIO Biology Canada International Polar Year (2007-2008) IPY Organic matter layer thickness Site W-Quebec |
spellingShingle |
Age relative number of years standard deviation BIO Biology Canada International Polar Year (2007-2008) IPY Organic matter layer thickness Site W-Quebec Drobyshev, Igor Simard, Martin Bergeron, Yves Hofgaard, Annika (Table 1) Tree age, post fire stand age, and soil organic matter thickness in the western Quebec black spruce boreal ecosystem |
topic_facet |
Age relative number of years standard deviation BIO Biology Canada International Polar Year (2007-2008) IPY Organic matter layer thickness Site W-Quebec |
description |
The observed long-term decrease in the regional fire activity of Eastern Canada results in excessive accumulation of organic layer on the forest floor of coniferous forests, which may affect climate-growth relationships in canopy trees. To test this hypothesis, we related tree-ring chronologies of black spruce (Picea mariana (Mill.) B.S.P.) to soil organic layer (SOL) depth at the stand scale in the lowland forests of Quebec's Clay Belt. Late-winter and early-spring temperatures and temperature at the end of the previous year's growing season were the major monthly level environmental controls of spruce growth. The effect of SOL on climate-growth relationships was moderate and reversed the association between tree growth and summer aridity from a negative to a positive relationship: trees growing on thin organic layers were thus negatively affected by drought, whereas it was the opposite for sites with deep (>20-30 cm) organic layers. This indicates the development of wetter conditions on sites with thicker SOL. Deep SOL were also associated with an increased frequency of negative growth anomalies (pointer years) in tree-ring chronologies. Our results emphasize the presence of nonlinear growth responses to SOL accumulation, suggesting 20-30 cm as a provisional threshold with respect to the effects of SOL on the climate-growth relationship. Given the current climatic conditions characterized by generally low-fire activity and a trend toward accumulation of SOL, the importance of SOL effects in the black spruce ecosystem is expected to increase in the future. |
format |
Dataset |
author |
Drobyshev, Igor Simard, Martin Bergeron, Yves Hofgaard, Annika |
author_facet |
Drobyshev, Igor Simard, Martin Bergeron, Yves Hofgaard, Annika |
author_sort |
Drobyshev, Igor |
title |
(Table 1) Tree age, post fire stand age, and soil organic matter thickness in the western Quebec black spruce boreal ecosystem |
title_short |
(Table 1) Tree age, post fire stand age, and soil organic matter thickness in the western Quebec black spruce boreal ecosystem |
title_full |
(Table 1) Tree age, post fire stand age, and soil organic matter thickness in the western Quebec black spruce boreal ecosystem |
title_fullStr |
(Table 1) Tree age, post fire stand age, and soil organic matter thickness in the western Quebec black spruce boreal ecosystem |
title_full_unstemmed |
(Table 1) Tree age, post fire stand age, and soil organic matter thickness in the western Quebec black spruce boreal ecosystem |
title_sort |
(table 1) tree age, post fire stand age, and soil organic matter thickness in the western quebec black spruce boreal ecosystem |
publisher |
PANGAEA |
publishDate |
2010 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.809315 https://doi.org/10.1594/PANGAEA.809315 |
op_coverage |
MEDIAN LATITUDE: 49.500000 * MEDIAN LONGITUDE: -78.750000 * SOUTH-BOUND LATITUDE: 49.000000 * WEST-BOUND LONGITUDE: -79.000000 * NORTH-BOUND LATITUDE: 50.000000 * EAST-BOUND LONGITUDE: -78.500000 * MINIMUM ELEVATION: 250.0 m * MAXIMUM ELEVATION: 400.0 m |
long_lat |
ENVELOPE(-79.000000,-78.500000,50.000000,49.000000) |
geographic |
Canada |
geographic_facet |
Canada |
genre |
International Polar Year IPY |
genre_facet |
International Polar Year IPY |
op_source |
Supplement to: Drobyshev, Igor; Simard, Martin; Bergeron, Yves; Hofgaard, Annika (2010): Does Soil Organic Layer Thickness Affect Climate-Growth Relationships in the Black Spruce Boreal Ecosystem? Ecosystems, 13(4), 556-574, https://doi.org/10.1007/s10021-010-9340-7 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.809315 https://doi.org/10.1594/PANGAEA.809315 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.809315 https://doi.org/10.1007/s10021-010-9340-7 |
_version_ |
1766044567678746624 |