Yves Begin
Biographic Data
| ID | 5612085 |
|---|---|
| NAME | Yves Begin |
| GIVEN NAMES | Yves |
| FAMILY NAME | Begin |
| SIGNATURE | BEGIN Y |
| AFFILIATIONS | Center for Northern Studies |
| VERIFIED | No |
| TOTAL WORKS | 10 |
| TOTAL CITATIONS | 1 |
| WORKS AS AUTHOR | 10 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1988 |
| LATEST PUBLICATION YEAR | 2017 |
| H-INDEX | 1 |
Lake Ice
Ice floods are among the most important disturbances affecting lakeshore ecology and landforms in seasonally cold environments. They occur in spring, when flood water still covered by thick, mechanically intact ice overflows the shores and impinges against the terrestrial/aquatic interface, with drastic consequences for the maintenance and evolution of lacustrine ecosystems.
Flooding Effects on Tree-Ring Formation of Riparian Eastern White-Cedar (Thuja occidentalis L.), Northwestern Quebec, Canada
Tree-ring formation of eastern white-cedar (Thuja occidentalis L.) at a boreal lake in northwestern Quebec, Canada, was monitored using manual band dendrometers to (i) retrace cambial activity phases, (ii) evaluate the effects of flooding on radial growth, and (iii) analyze the relationships with meteorological factors. The daily circumferential activity of four trees at each of two sites, a riparian and an upland site, was recorded during the gr…
Analyse dendrochronologique des effets climatiques d'un vaste réservoir hydroélectrique au Québec nordique (Canada) / Dendrochronological analysis of the climatic effects of a vast hydroelectric reser…
L'influence climatique du réservoir Robert-Bourassa (2 835 km2) sur l'environnement forestier a été étudiée au moyen de la dendrochronologie. Le réservoir a pour effet de refroidir le climat local. Ceci engendre un retard dans la levée de dormance, une faible productivité des arbres en début de saison et de nombreux stress physiologiques. Les arbres riverains périlacustres et insulaires montrent une haute fréquence de cernes pâles (cernes ayant u…
Tree-Ring Dating of Extreme Lake Levels at the Subarctic–Boreal Interface
The dates of extreme water levels of two large lakes in northern Quebec have been recorded over the last century by ice scars on shoreline trees and sequences of reaction wood in shore trees tilted by wave erosion. Ice-scar chronologies indicate high water levels in spring, whereas tree-tilting by waves is caused by summer high waters. A major increase in both the amplitude and frequency of ice floods occurred in the 1930s. No such change was ind…
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…
Ice-push disturbances in high-Boreal and Subarctic lakeshore ecosystems since AD 1830, northern Québec, Canada
Ice scars on lakeshore trees were surveyed on the islands of two large lakes in northern Québec: Clearwater Lake (1270 km 2 ) and Bienville Lake (900 km 2 ), respectively at the southern edge of the Subarctic and at the northern limit of the Boreal zones. Correspondence of ice-scar chronologies with hydrological and climatological instrumental registers indicated that shore ice pushes are due to lake floods. In the AD 1930s, a shift in the flood …
A Slice through Time
Recent paludification of kettle holes on the central isjands of Lake Bienville, northern Quebec, Canada
This paper reports on the paludification of kettle holes formed in a proglacial esker complex at Lake Bienville in northern Quebec. Deep hollows on the central islands of this large subarctic lake (c. 900 kin 2 ), are highly exposed to northeasterly and southwesterly winds over long fetches, and accumulate large amounts of drifting snow (c. 4 m). Modifications in local snow distribution associated with Holocene vegetation and climate changes cont…
Downward Migration of Coastal Conifers as a Response to Recent Land Emergence in Eastern Hudson Bay, Québec
Postglacial uplift in the eastern Hudson Bay area is among the most rapid in the world (300 m during the last 8000 yr). Although emergence curves based on 14 C-dated raised shorelines give a consistent basis for modeling relative sea-level changes, such a low-resolution dating method is inappropriate for estimating trends over recent decades. A major downward displacement of white spruce ( Picea glauca (Moench) Voss) and tamarack ( Larix laricina…
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…
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…
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…
Downward Migration of Coastal Conifers as a Response to Recent Land Emergence in Eastern Hudson Bay, Québec
Postglacial uplift in the eastern Hudson Bay area is among the most rapid in the world (300 m during the last 8000 yr). Although emergence curves based on 14 C-dated raised shorelines give a consistent basis for modeling relative sea-level changes, such a low-resolution dating method is inappropriate for estimating trends over recent decades. A major downward displacement of white spruce ( Picea glauca (Moench) Voss) and tamarack ( Larix laricina…
A Slice through Time
Recent paludification of kettle holes on the central isjands of Lake Bienville, northern Quebec, Canada
This paper reports on the paludification of kettle holes formed in a proglacial esker complex at Lake Bienville in northern Quebec. Deep hollows on the central islands of this large subarctic lake (c. 900 kin 2 ), are highly exposed to northeasterly and southwesterly winds over long fetches, and accumulate large amounts of drifting snow (c. 4 m). Modifications in local snow distribution associated with Holocene vegetation and climate changes cont…
Ice-push disturbances in high-Boreal and Subarctic lakeshore ecosystems since AD 1830, northern Québec, Canada
Ice scars on lakeshore trees were surveyed on the islands of two large lakes in northern Québec: Clearwater Lake (1270 km 2 ) and Bienville Lake (900 km 2 ), respectively at the southern edge of the Subarctic and at the northern limit of the Boreal zones. Correspondence of ice-scar chronologies with hydrological and climatological instrumental registers indicated that shore ice pushes are due to lake floods. In the AD 1930s, a shift in the flood …
Tree-Ring Dating of Extreme Lake Levels at the Subarctic–Boreal Interface
The dates of extreme water levels of two large lakes in northern Quebec have been recorded over the last century by ice scars on shoreline trees and sequences of reaction wood in shore trees tilted by wave erosion. Ice-scar chronologies indicate high water levels in spring, whereas tree-tilting by waves is caused by summer high waters. A major increase in both the amplitude and frequency of ice floods occurred in the 1930s. No such change was ind…
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…
Analyse dendrochronologique des effets climatiques d'un vaste réservoir hydroélectrique au Québec nordique (Canada) / Dendrochronological analysis of the climatic effects of a vast hydroelectric reser…
L'influence climatique du réservoir Robert-Bourassa (2 835 km2) sur l'environnement forestier a été étudiée au moyen de la dendrochronologie. Le réservoir a pour effet de refroidir le climat local. Ceci engendre un retard dans la levée de dormance, une faible productivité des arbres en début de saison et de nombreux stress physiologiques. Les arbres riverains périlacustres et insulaires montrent une haute fréquence de cernes pâles (cernes ayant u…
Flooding Effects on Tree-Ring Formation of Riparian Eastern White-Cedar (Thuja occidentalis L.), Northwestern Quebec, Canada
Tree-ring formation of eastern white-cedar (Thuja occidentalis L.) at a boreal lake in northwestern Quebec, Canada, was monitored using manual band dendrometers to (i) retrace cambial activity phases, (ii) evaluate the effects of flooding on radial growth, and (iii) analyze the relationships with meteorological factors. The daily circumferential activity of four trees at each of two sites, a riparian and an upland site, was recorded during the gr…
Lake Ice
Ice floods are among the most important disturbances affecting lakeshore ecology and landforms in seasonally cold environments. They occur in spring, when flood water still covered by thick, mechanically intact ice overflows the shores and impinges against the terrestrial/aquatic interface, with drastic consequences for the maintenance and evolution of lacustrine ecosystems.
Geography (9 works) · Physical geography (8 works) · Geology and Paleoclimatology Research (7 works) · Tree-ring climate responses (7 works) · Archaeology (5 works) · Dendrochronology (5 works) · Geology (5 works) · Geomorphology (5 works) · Subarctic climate (5 works) · Environmental Science (4 works)