Serge Payette
Biographic Data
| ID | 1347531 |
|---|---|
| NAME | Serge Payette |
| GIVEN NAMES | Serge |
| FAMILY NAME | Payette |
| SIGNATURE | PAYETTE S |
| AFFILIATIONS | Université Laval |
| ORCID | 0000-0001-5809-6955 |
| VERIFIED | Yes |
| TOTAL WORKS | 29 |
| TOTAL CITATIONS | 27 |
| WORKS AS AUTHOR | 27 |
| WORKS AS EDITOR | 2 |
| FIRST PUBLICATION YEAR | 1972 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 3 |
Drought as the main climatic driver of major boreal fire seasons over the last century in eastern Canada
Projected global changes are anticipated to alter the fire regimes within boreal ecosystems. Understanding the relationship between fire activity and climate change requires a long-term dataset of annual burned area. Currently, there are only a limited number of long-term fire histories derived from detailed fieldwork. In this study, we used a spatially explicit reconstruction of forest fires from 1890 to 2024 across boreal Quebec based on histor…
Flore nordique du Québec et du Labrador Vol. 5
The colonial legacy of herbaria
Biomass offsets little or none of permafrost carbon release from soils, streams, and wildfire
As the permafrost region warms, its large organic carbon pool will be increasingly vulnerable to decomposition, combustion, and hydrologic export. Models predict that some portion of this release will be offset by increased production of Arctic and boreal biomass; however, the lack of robust estimates of net carbon balance increases the risk of further overshooting international emissions targets. Precise empirical or model-based assessments of t…
Holocene dynamics of an eastern hemlock ( Tsuga canadensis ) forest site at the northern range of the species limit
Eastern hemlock ( Tsuga canadensis) is a shade-tolerant tree of the temperate conifer-hardwood forests of northeastern North America whose northern limit of distribution coincides with the St Lawrence River around Québec City (Canada). We have analyzed the structure and dynamics of one of the very few old-growth hemlock stands in this area to evaluate its successional status at the Holocene scale. To document the origin and long-term development …
Fire history of the central boreal forest in eastern North America reveals stability since the mid-Holocene
Past and present fire frequencies are key factors to evaluate fire-mediated changes in climate, but this metric is difficult to evaluate realistically in paleoecological and climatic reconstructions. Here, we applied charcoal analysis of forest soils to test from direct evidence the stability and resilience of the eastern North-American boreal forest at the Holocene timescale. Current knowledge indicates that the boreal forest is not so stable an…
Holocene development of maritime ombrotrophic peatlands of the St. Lawrence North Shore in eastern Canada
Macrofossil analyses were used to reconstruct long-term vegetation successions within ombrotrophic peatlands (bogs) from the northern shorelines of the St. Lawrence Estuary (Baie-Comeau) and the Gulf of St. Lawrence (Havre-St-Pierre). Over the Holocene, the timing and the ecological context of peatland inception were similar in both regions and were mainly influenced by fluctuations in relative sea level. Peat accumulation started over deltaic sa…
Écologie des Tourbières du Québec-Labrador
Impact of fire on long-term vegetation dynamics of ombrotrophic peatlands in northwestern Québec, Canada
A 7000-year record of local fire history was reconstructed from three ombrotrophic peatlands in the James Bay lowlands (northwestern Québec, Canada) using a high-resolution analysis of macroscopic charcoal (long axis≥0.5 mm). The impact of fire on vegetation changes was evaluated using detailed analysis of plant macrofossils. Compared to upland boreal forest, fire incidence in these Sphagnum -dominated bogs is rather low. Past fire occurrence see…
Forest soil paludification and mid-Holocene retreat of jack pine in easternmost North America
Soil paludification is the main ecosystem process initiating the formation and development of most peatlands in the Northern Hemisphere. Sandy podzolic soils developed on coarse deposits are among a large variety of substrates overgrown by thick peat layers, particularly along the amphi-atlantic coasts of North America and Europe. Whether the podzolic soils beneath peat layers are remnants of former dry environments allowing the morphogenetic dev…
Long-term fire and forest history of subalpine balsam fir ( Abies balsamea ) and white spruce ( Picea glauca ) stands in eastern Canada inferred from soil charcoal analysis
The northernmost balsam fir forest in eastern Canada forms disjunct stands far beyond the extensive balsam fir forest zone of southern Canada. The northern balsam fir stands are distributed in the subalpine belt of high plateaus and coexist locally with white spruce stands. These subalpine stands contrast greatly with black spruce forest stands located in lowlands. Given that subalpine stands are remnants of an earlier northern expansion of the b…
Peatland development at the arctic tree line (Québec, Canada) influenced by flooding and permafrost
In this study, we documented the Holocene history of a peat plateau at the arctic tree line in northern Québec using stratigraphic and macrofossil analyses to highlight the effects of geomorphic setting in peatland development. Paludification of the site began about 6800 cal yr BP. From 6390 to 4120 cal yr BP, the peatland experienced a series of flooding events. The location of the peatland in a depression bounded by two small lakes likely expla…
Holocene occurrence of Lophodermium piceae , a black spruce needle endophyte and possible paleoindicator of boreal forest health
Holocene occurrences of conifer needle endophytes have not previously been reported. We report the fossil remains of Lophodermium piceae (Fckl.) Hoehn., a fungal endophyte of black spruce ( Picea mariana (Mill.) B.S.P.) needles, in macrofossils dating back to 8000 cal yr BP. Spruce budworm head capsules and L. piceae remains were found preceding charcoal layers delineating the transformation of four spruce−moss forest sites to spruce−lichen woodl…
Reconstruction of the long-term fire history of an old-growth deciduous forest in Southern Québec, Canada, from charred wood in mineral soils
Charcoal particles are widespread in terrestrial and lake environments of the northern temperate and boreal biomes where they are used to reconstruct past fire events and regimes. In this study, we used botanically identified and radiocarbon-dated charcoal macrofossils in mineral soils as a paleoecological tool to reconstruct past fire activity at the stand scale. Charcoal macrofossils buried in podzolic soils by tree uprooting were analyzed to r…
Les limites écologiques de la zone hémi-arctique entre la mer d'Hudson et la baie d'Ungava, Nouveau-Québec
Le présent travail se rapporte à la description et à la cartographie des sous-zones et des domaines écoclimatiques de l'Hémi-arctique, situés entre la mer d'Hudson et la baie d'Ungava au Nouveau-Québec. Les subdivisions écologiques de ce territoire ont été faites grâce à la distribution différentielle des trois espèces arborescentes dominantes (épinette blanche, épinette noire et mélèze) et des principales formations conifériennes. L'ensemble des…
La dynamique de l'enneigement en région hémi-arctique, Poste-de-la-Baleine, Nouveau-Québec
Dans les régions hemi-arctiques, les patrons d'enneigement sont causés par l'arrangement spatial des unités de relief et de végétation. A Poste-de-la-Baleine, l'étude de la distribution du couvert de neige en fonction des unités de relief démontre que les dépressions et les versants affectés d'un microrelief accusé ou de fortes dénivellations sont les sites privilégiés d'accumulation. Les structures végétales hautes exercent un meilleur contrôle …
Determining the age of the mid-Holocene Tsuga canadensis (hemlock) decline, eastern North America
The new date provided by Bennett and Fuller (2002) for the mid-Holocene hemlock (Tsuga canadensis) decline in eastern North America is questioned in the light of recent advances in the palaeoecology of the decline. It is concluded that the‘new’ date gives a false impression of the dating accuracy of a complex ecological event of relatively long duration
Long-term Interactions between Migratory Caribou, Wildfires and Nunavik Hunters Inferred from Tree Rings
Barren-ground caribou (Rangifer tarandus) herds in North America may reach considerable size and undertake large-scale seasonal migrations from the Arctic tundra to the boreal forest. To test the caribou decline hypothesis associated with native harvesting and fire, we have documented the long-term trends of caribou activity based on a novel approach which uses tree-ring dated trampling scars produced by caribou hooves in the extensive trails dis…
Long-term Interactions between Migratory Caribou, Wildfires and Nunavik Hunters Inferred from Tree Rings
Barren-ground caribou (Rangifer tarandus) herds in North America may reach considerable size and undertake large-scale seasonal migrations from the Arctic tundra to the boreal forest. To test the caribou decline hypothesis associated with native harvesting and fire, we have documented the long-term trends of caribou activity based on a novel approach which uses tree-ring dated trampling scars produced by caribou hooves in the extensive trails dis…
Year tree-ring width and density series based on living, dead and subfossil black spruce at tree-line in Subarctic Quebec, Canada
Living, dead and subfossil trees of black spiruce (Picea mariina [Mill.] BSP were used to build a 1300-year chronology based on ring width and wood density. All density sariables (maximcum, minimum, earlywood and latewood densities) among the three types of trees were simlilar, whereas ring width was significantly Higher in liviing trees thani in deacd and subfossil trees. Correlition of the indexed series from liviing and dead trees and from dea…
Late-Holocene Expansion of Eastern Larch ( Larix laricina [Du Roi] K. Koch) in Northwestern Québec
The Holocene expansion of eastern larch ( Larix laricina [Du Roi] K. Koch) at the edge of its geographical range in northwestern Québec was reconstructed using pollen and macrofossils from peat deposits. Because Larix is a poor pollen producer, the total pollen sum of 300–500 grains per spectrum was supplied by an additional survey of 2000 grains. However, the use of 2000 pollen counts did not give a better Larix record. The combination of both p…
Late-Holocene light-ring chronologies from subfossil black spruce stems in mires of subarctic Québec
Subfossil black spruce ( Picea mariana [Mill.] B.S.P.) stems from permafrost mires in a 250-km 2 area at the arctic tree-line, near the eastern coast of Hudson Bay, were sampled for the construction of a long 'light-ring' chronology spanning the late Holocene. Thirty-three out of the 143 sampled spruce logs were 14 C- dated yielding dates between 4580 and 1540 BP (3550-3010 cal. BC - cal. AD 377-649). Light rings (rings with thin-walled latewood …
Holocene Relict Woodlands at the Eastern Canadian Treeline
We present direct evidence for the relict nature of lichenspruce woodlands thriving at treeline, using 14 C-dated stands growing in the humid climate of eastern Hudson Bay in northern Québec. Black spruce, Picea mariana (Mill.) BSP, forms two groups of relict stands: a Neoglacial group of postfire origin dating between 2000 and 900 yr B.P. and a pre-Neoglacial group most likely established between 4500 and 3200 yr B.P. The latter group shows no e…
The late Holocene record of aeolian and fire activity in northern Québec, Canada
A set of 196 14 C dates was used to reconstruct Late Holocene aeolian activity in the Hudson Bay area along a south-north transect crossing the northern boreal forest, the forest tundra and the shrub tundra zones. The record indicates a minor period of aeolian activity between 4650 and 4050 BP, and three major periods at 3650-2750 BP and after 700 BP. In the northern boreal forest, there was little temporal variation in dune activity, except arou…
Dendroecological Evidence of Lake-Level Changes during the Last Three Centuries in Subarctic Québec
Dendroecological analysis of black spruces ( Picea mariana (Mill.) BSP.) near the shore of Clearwater Lake in the eastern Canadian subarctic yielded information on water level over the past three centuries. Tree positions, growth froms, layering, tree ring patterns, and ice scars provide direct evidence of a major rise in lake level. From the 17th century to the present, trees on the lake shore were progressively submerged by the increasing water…
The late Holocene record of aeolian and fire activity in northern Québec, Canada
A set of 196 14 C dates was used to reconstruct Late Holocene aeolian activity in the Hudson Bay area along a south-north transect crossing the northern boreal forest, the forest tundra and the shrub tundra zones. The record indicates a minor period of aeolian activity between 4650 and 4050 BP, and three major periods at 3650-2750 BP and after 700 BP. In the northern boreal forest, there was little temporal variation in dune activity, except arou…
The colonial legacy of herbaria
Long-term fire and forest history of subalpine balsam fir ( Abies balsamea ) and white spruce ( Picea glauca ) stands in eastern Canada inferred from soil charcoal analysis
The northernmost balsam fir forest in eastern Canada forms disjunct stands far beyond the extensive balsam fir forest zone of southern Canada. The northern balsam fir stands are distributed in the subalpine belt of high plateaus and coexist locally with white spruce stands. These subalpine stands contrast greatly with black spruce forest stands located in lowlands. Given that subalpine stands are remnants of an earlier northern expansion of the b…
Late-Holocene light-ring chronologies from subfossil black spruce stems in mires of subarctic Québec
Subfossil black spruce ( Picea mariana [Mill.] B.S.P.) stems from permafrost mires in a 250-km 2 area at the arctic tree-line, near the eastern coast of Hudson Bay, were sampled for the construction of a long 'light-ring' chronology spanning the late Holocene. Thirty-three out of the 143 sampled spruce logs were 14 C- dated yielding dates between 4580 and 1540 BP (3550-3010 cal. BC - cal. AD 377-649). Light rings (rings with thin-walled latewood …
Fire history of the central boreal forest in eastern North America reveals stability since the mid-Holocene
Past and present fire frequencies are key factors to evaluate fire-mediated changes in climate, but this metric is difficult to evaluate realistically in paleoecological and climatic reconstructions. Here, we applied charcoal analysis of forest soils to test from direct evidence the stability and resilience of the eastern North-American boreal forest at the Holocene timescale. Current knowledge indicates that the boreal forest is not so stable an…
Forest soil paludification and mid-Holocene retreat of jack pine in easternmost North America
Soil paludification is the main ecosystem process initiating the formation and development of most peatlands in the Northern Hemisphere. Sandy podzolic soils developed on coarse deposits are among a large variety of substrates overgrown by thick peat layers, particularly along the amphi-atlantic coasts of North America and Europe. Whether the podzolic soils beneath peat layers are remnants of former dry environments allowing the morphogenetic dev…
Les limites écologiques de la zone hémi-arctique entre la mer d'Hudson et la baie d'Ungava, Nouveau-Québec
Le présent travail se rapporte à la description et à la cartographie des sous-zones et des domaines écoclimatiques de l'Hémi-arctique, situés entre la mer d'Hudson et la baie d'Ungava au Nouveau-Québec. Les subdivisions écologiques de ce territoire ont été faites grâce à la distribution différentielle des trois espèces arborescentes dominantes (épinette blanche, épinette noire et mélèze) et des principales formations conifériennes. L'ensemble des…
Year tree-ring width and density series based on living, dead and subfossil black spruce at tree-line in Subarctic Quebec, Canada
Living, dead and subfossil trees of black spiruce (Picea mariina [Mill.] BSP were used to build a 1300-year chronology based on ring width and wood density. All density sariables (maximcum, minimum, earlywood and latewood densities) among the three types of trees were simlilar, whereas ring width was significantly Higher in liviing trees thani in deacd and subfossil trees. Correlition of the indexed series from liviing and dead trees and from dea…
Observations sur les conditions d'enseigement à Poste-de-la-Baleine, Nouveau-Québec, hiver 1972
Observations sur les conditions d’enseigement à Poste-de-la-Baleine, Nouveau-Québec, hiver 1972. Un article de la revue Cahiers de géographie du Québec (Volume 16, numéro 39, 1972, p. 377-531) diffusée par la plateforme Érudit
Hommage à Ernest Lepage, botaniste et explorateur du Nouveau-Québec
Recent Tree-Limit Dynamics of Scots Pine ( Pinus sylvestris L. ) in the Southern Swedish Scandes, by Leif Kullman
Light Rings in Subarctic Conifers as a Dendrochronological Tool
Light rings are characterized by one or a very few latewood-cell layers, an indication of shortened growing seasons, and are particularly frequent in black spruce ( Picea mariana (Mill.) BSP) at the treeline in Québec. The construction of a light-ring chronology spanning the period AD 1398–1982 showed that the highest frequency (>25%) of light rings among 160 trees and krummholz occurred in 1593, 1620, 1634, 1784, 1816, 1817, 1853, 1969, and 1972…
Dendroecological Evidence of Lake-Level Changes during the Last Three Centuries in Subarctic Québec
Dendroecological analysis of black spruces ( Picea mariana (Mill.) BSP.) near the shore of Clearwater Lake in the eastern Canadian subarctic yielded information on water level over the past three centuries. Tree positions, growth froms, layering, tree ring patterns, and ice scars provide direct evidence of a major rise in lake level. From the 17th century to the present, trees on the lake shore were progressively submerged by the increasing water…
The late Holocene record of aeolian and fire activity in northern Québec, Canada
A set of 196 14 C dates was used to reconstruct Late Holocene aeolian activity in the Hudson Bay area along a south-north transect crossing the northern boreal forest, the forest tundra and the shrub tundra zones. The record indicates a minor period of aeolian activity between 4650 and 4050 BP, and three major periods at 3650-2750 BP and after 700 BP. In the northern boreal forest, there was little temporal variation in dune activity, except arou…
Holocene Relict Woodlands at the Eastern Canadian Treeline
We present direct evidence for the relict nature of lichenspruce woodlands thriving at treeline, using 14 C-dated stands growing in the humid climate of eastern Hudson Bay in northern Québec. Black spruce, Picea mariana (Mill.) BSP, forms two groups of relict stands: a Neoglacial group of postfire origin dating between 2000 and 900 yr B.P. and a pre-Neoglacial group most likely established between 4500 and 3200 yr B.P. The latter group shows no e…
Late-Holocene Expansion of Eastern Larch ( Larix laricina [Du Roi] K. Koch) in Northwestern Québec
The Holocene expansion of eastern larch ( Larix laricina [Du Roi] K. Koch) at the edge of its geographical range in northwestern Québec was reconstructed using pollen and macrofossils from peat deposits. Because Larix is a poor pollen producer, the total pollen sum of 300–500 grains per spectrum was supplied by an additional survey of 2000 grains. However, the use of 2000 pollen counts did not give a better Larix record. The combination of both p…
Late-Holocene light-ring chronologies from subfossil black spruce stems in mires of subarctic Québec
Subfossil black spruce ( Picea mariana [Mill.] B.S.P.) stems from permafrost mires in a 250-km 2 area at the arctic tree-line, near the eastern coast of Hudson Bay, were sampled for the construction of a long 'light-ring' chronology spanning the late Holocene. Thirty-three out of the 143 sampled spruce logs were 14 C- dated yielding dates between 4580 and 1540 BP (3550-3010 cal. BC - cal. AD 377-649). Light rings (rings with thin-walled latewood …
Year tree-ring width and density series based on living, dead and subfossil black spruce at tree-line in Subarctic Quebec, Canada
Living, dead and subfossil trees of black spiruce (Picea mariina [Mill.] BSP were used to build a 1300-year chronology based on ring width and wood density. All density sariables (maximcum, minimum, earlywood and latewood densities) among the three types of trees were simlilar, whereas ring width was significantly Higher in liviing trees thani in deacd and subfossil trees. Correlition of the indexed series from liviing and dead trees and from dea…
Determining the age of the mid-Holocene Tsuga canadensis (hemlock) decline, eastern North America
The new date provided by Bennett and Fuller (2002) for the mid-Holocene hemlock (Tsuga canadensis) decline in eastern North America is questioned in the light of recent advances in the palaeoecology of the decline. It is concluded that the‘new’ date gives a false impression of the dating accuracy of a complex ecological event of relatively long duration
Long-term Interactions between Migratory Caribou, Wildfires and Nunavik Hunters Inferred from Tree Rings
Barren-ground caribou (Rangifer tarandus) herds in North America may reach considerable size and undertake large-scale seasonal migrations from the Arctic tundra to the boreal forest. To test the caribou decline hypothesis associated with native harvesting and fire, we have documented the long-term trends of caribou activity based on a novel approach which uses tree-ring dated trampling scars produced by caribou hooves in the extensive trails dis…
Long-term Interactions between Migratory Caribou, Wildfires and Nunavik Hunters Inferred from Tree Rings
Barren-ground caribou (Rangifer tarandus) herds in North America may reach considerable size and undertake large-scale seasonal migrations from the Arctic tundra to the boreal forest. To test the caribou decline hypothesis associated with native harvesting and fire, we have documented the long-term trends of caribou activity based on a novel approach which uses tree-ring dated trampling scars produced by caribou hooves in the extensive trails dis…
Reconstruction of the long-term fire history of an old-growth deciduous forest in Southern Québec, Canada, from charred wood in mineral soils
Charcoal particles are widespread in terrestrial and lake environments of the northern temperate and boreal biomes where they are used to reconstruct past fire events and regimes. In this study, we used botanically identified and radiocarbon-dated charcoal macrofossils in mineral soils as a paleoecological tool to reconstruct past fire activity at the stand scale. Charcoal macrofossils buried in podzolic soils by tree uprooting were analyzed to r…
Les limites écologiques de la zone hémi-arctique entre la mer d'Hudson et la baie d'Ungava, Nouveau-Québec
Le présent travail se rapporte à la description et à la cartographie des sous-zones et des domaines écoclimatiques de l'Hémi-arctique, situés entre la mer d'Hudson et la baie d'Ungava au Nouveau-Québec. Les subdivisions écologiques de ce territoire ont été faites grâce à la distribution différentielle des trois espèces arborescentes dominantes (épinette blanche, épinette noire et mélèze) et des principales formations conifériennes. L'ensemble des…
La dynamique de l'enneigement en région hémi-arctique, Poste-de-la-Baleine, Nouveau-Québec
Dans les régions hemi-arctiques, les patrons d'enneigement sont causés par l'arrangement spatial des unités de relief et de végétation. A Poste-de-la-Baleine, l'étude de la distribution du couvert de neige en fonction des unités de relief démontre que les dépressions et les versants affectés d'un microrelief accusé ou de fortes dénivellations sont les sites privilégiés d'accumulation. Les structures végétales hautes exercent un meilleur contrôle …
Peatland development at the arctic tree line (Québec, Canada) influenced by flooding and permafrost
In this study, we documented the Holocene history of a peat plateau at the arctic tree line in northern Québec using stratigraphic and macrofossil analyses to highlight the effects of geomorphic setting in peatland development. Paludification of the site began about 6800 cal yr BP. From 6390 to 4120 cal yr BP, the peatland experienced a series of flooding events. The location of the peatland in a depression bounded by two small lakes likely expla…
Holocene occurrence of Lophodermium piceae , a black spruce needle endophyte and possible paleoindicator of boreal forest health
Holocene occurrences of conifer needle endophytes have not previously been reported. We report the fossil remains of Lophodermium piceae (Fckl.) Hoehn., a fungal endophyte of black spruce ( Picea mariana (Mill.) B.S.P.) needles, in macrofossils dating back to 8000 cal yr BP. Spruce budworm head capsules and L. piceae remains were found preceding charcoal layers delineating the transformation of four spruce−moss forest sites to spruce−lichen woodl…
Long-term fire and forest history of subalpine balsam fir ( Abies balsamea ) and white spruce ( Picea glauca ) stands in eastern Canada inferred from soil charcoal analysis
The northernmost balsam fir forest in eastern Canada forms disjunct stands far beyond the extensive balsam fir forest zone of southern Canada. The northern balsam fir stands are distributed in the subalpine belt of high plateaus and coexist locally with white spruce stands. These subalpine stands contrast greatly with black spruce forest stands located in lowlands. Given that subalpine stands are remnants of an earlier northern expansion of the b…
Impact of fire on long-term vegetation dynamics of ombrotrophic peatlands in northwestern Québec, Canada
A 7000-year record of local fire history was reconstructed from three ombrotrophic peatlands in the James Bay lowlands (northwestern Québec, Canada) using a high-resolution analysis of macroscopic charcoal (long axis≥0.5 mm). The impact of fire on vegetation changes was evaluated using detailed analysis of plant macrofossils. Compared to upland boreal forest, fire incidence in these Sphagnum -dominated bogs is rather low. Past fire occurrence see…
Forest soil paludification and mid-Holocene retreat of jack pine in easternmost North America
Soil paludification is the main ecosystem process initiating the formation and development of most peatlands in the Northern Hemisphere. Sandy podzolic soils developed on coarse deposits are among a large variety of substrates overgrown by thick peat layers, particularly along the amphi-atlantic coasts of North America and Europe. Whether the podzolic soils beneath peat layers are remnants of former dry environments allowing the morphogenetic dev…
Écologie des Tourbières du Québec-Labrador
Holocene development of maritime ombrotrophic peatlands of the St. Lawrence North Shore in eastern Canada
Macrofossil analyses were used to reconstruct long-term vegetation successions within ombrotrophic peatlands (bogs) from the northern shorelines of the St. Lawrence Estuary (Baie-Comeau) and the Gulf of St. Lawrence (Havre-St-Pierre). Over the Holocene, the timing and the ecological context of peatland inception were similar in both regions and were mainly influenced by fluctuations in relative sea level. Peat accumulation started over deltaic sa…
Holocene dynamics of an eastern hemlock ( Tsuga canadensis ) forest site at the northern range of the species limit
Eastern hemlock ( Tsuga canadensis) is a shade-tolerant tree of the temperate conifer-hardwood forests of northeastern North America whose northern limit of distribution coincides with the St Lawrence River around Québec City (Canada). We have analyzed the structure and dynamics of one of the very few old-growth hemlock stands in this area to evaluate its successional status at the Holocene scale. To document the origin and long-term development …
Fire history of the central boreal forest in eastern North America reveals stability since the mid-Holocene
Past and present fire frequencies are key factors to evaluate fire-mediated changes in climate, but this metric is difficult to evaluate realistically in paleoecological and climatic reconstructions. Here, we applied charcoal analysis of forest soils to test from direct evidence the stability and resilience of the eastern North-American boreal forest at the Holocene timescale. Current knowledge indicates that the boreal forest is not so stable an…
Geography (25 works) · Geology and Paleoclimatology Research (18 works) · Physical geography (16 works) · Holocene (13 works) · Biology (11 works) · Taiga (11 works) · Forestry (10 works) · Geology (10 works) · Archaeology (9 works) · Climate change and permafrost (9 works)