Climatic influence on the inter-annual variability of late-Holocene minerogenic sediment supply in a boreal forest catchment

2010 ◽  
pp. n/a-n/a ◽  
Author(s):  
Gunilla Petterson ◽  
Ingemar Renberg ◽  
Sara Sjöstedt-de Luna ◽  
Per Arnqvist ◽  
N. John Anderson
Keyword(s):  
Boreal Forest ◽  
Late Holocene ◽  
Sediment Supply ◽  
Climatic Influence ◽  
Annual Variability ◽  
Forest Catchment

Climate and hydrologic controls on late Holocene sediment supply to an Amazon floodplain lake

2020 ◽  
Vol 64 (4) ◽  
pp. 389-403
Author(s):  
Luciane Silva Moreira ◽  
Patricia Moreira-Turcq ◽  
Renato Campello Cordeiro ◽  
Bruno Turcq ◽  
Keila Cristina Aniceto ◽  
...  
Keyword(s):  
Late Holocene ◽  
Sediment Supply ◽  
Floodplain Lake ◽  
Amazon Floodplain ◽  
Holocene Sediment ◽  
Hydrologic Controls

Mid- and Late Holocene vegetation dynamics and fire history in the boreal forest of European Russia: A case study from Meshchera Lowlands

2016 ◽  
Vol 459 ◽  
pp. 570-584 ◽  
Author(s):  
Elena Yu. Novenko ◽  
Andrey N. Tsyganov ◽  
Elena M. Volkova ◽  
Dmitrii A. Kupriyanov ◽  
Iya V. Mironenko ◽  
...  
Keyword(s):  
Boreal Forest ◽  
Vegetation Dynamics ◽  
Late Holocene ◽  
Fire History ◽  
European Russia

Holocene dune activity and environmental change in the prairie parki and and boreal forest, central Saskatchewan, Canada

The Holocene ◽  
2006 ◽  
Vol 16 (1) ◽  
pp. 17-29 ◽  
Author(s):  
Stephen A. Wolfe ◽  
Jeff Ollerhead ◽  
David J. Huntley ◽  
Olav B. Lian
Keyword(s):  
Environmental Change ◽  
Boreal Forest ◽  
Great Plains ◽  
Late Holocene ◽  
Early Holocene ◽  
Aeolian Activity ◽  
Landscape Response ◽  
Response To Environmental Change ◽  
Holocene Activity ◽  
Dune Activity

Past aeolian activity was reconstructed at four dunefields in the prairie parkland and boreal forest of central Saskatchewan to elucidate landscape response to environmental change. Optical ages from stabilized dunes in the boreal transition ecoregion indicate two episodes of activity. The first, at about 11 ka, corresponds to a period of early-Holocene parkland and grassland cover following deglaciation and drainage after about 13.0 ka, and brief establishment of boreal forest. The second, between about 7.5 and 5 ka, corresponds to a period of mid-Holocene parkland-grassland cover. Optical ages from dunefields in the prairie parkland primarily record mid-Holocene activity, between about 7.5 and 4.7 ka, corresponding to a period of grassland cover, with some reworking continuing into the late Holocene. Although this area was deglaciated by about 13.5 ka, there is no evidence of early-Holocene dune activity, suggesting that mid-Holocene activity may have reworked earlier deposits here. Consequently, much of the morphology and stratigraphy observed in these dunefields are associated with mid-Holocene activity, likely associated with increased aridity and reduced vegetation cover at that time. This study provides the most northerly evidence of mid-Holocene dune reactivation on the Great Plains, lending support to the assertion that aeolian activity was widespread at that time.

scholarly journals Late Holocene Geomorphology of the Columbia River Estuary, Oregon and Washington, USA

2014 ◽  
Vol 6 (2) ◽  
pp. 1 ◽  
Author(s):  
Curt Peterson ◽  
Sandy Vanderburgh ◽  
Michael C. Roberts
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Late Holocene ◽  
River Estuary ◽  
Columbia River ◽  
Sediment Supply ◽  
Sedimentation Rates ◽  
Lateral Migration ◽  
Columbia River Estuary ◽  
Apparent Paradox

Abundant river sediment supply and an open-water central bay area characterize the geomorphology of the large Columbia River estuary (~ 100 km in length). Lateral floodplains and marsh islands do constrict the uppermost reaches of the estuary, but the central axes of the lower estuary are dominated by shallow sand shoals (0–4 m water depth). A total of 58 vibracores are used to document the grain size and age (0–2,500 14CyrBP) of late Holocene deposits in the estuary. Sedimentation rates in stable floodplains (1.1 m ka-1) reflect rates of relative sea level rise (0.75 m ka-1). Sedimentation rates of muddy sand accretionary banks and prehistoric sand shoals (1.5–7 m ka-1) greatly exceed coeval rates of sea level rise, so they must represent short–term rates of vertical accretion resulting from channel lateral migration and associated cut and fill processes. The apparent paradox of unfilled accommodation space in the estuary is resolved by 1) winter wind–wave erosion of sand shoals to -3 m NAVD88 elevation and 2) asymmetric fluvial-tidal advection that results in net seaward transport of bed load in shallow tidal channels (> – 10 m NAVD88) and shallow subtidal shoals (> – 4 m NAVD88) during spring river flooding. 

Variation of total dissolved iron and its impacts during an extreme flooding event in a boreal forest catchment

2018 ◽  
Vol 125 ◽  
pp. 227-234
Author(s):  
Jia Wang ◽  
Jiunian Guan ◽  
Liu Yang ◽  
Zirui Wang ◽  
Nan Lu ◽  
...  
Keyword(s):  
Boreal Forest ◽  
Dissolved Iron ◽  
Flooding Event ◽  
Forest Catchment ◽  
Extreme Flooding ◽  
Total Dissolved Iron

WAVE ENERGY, SEDIMENT SUPPLY, AND SEA-LEVEL FALL: LATE HOLOCENE BASIN INFILLING IN SOUTHERN BRAZIL

2015 ◽  
Author(s):  
CHRISTOPHER J. HEIN ◽  
IOANNIS Y. GEORGIOU ◽  
DUNCAN M. FITZGERALD ◽  
LUIS H.P. SOUZA ◽  
ANTONIO H.F. KLEIN ◽  
...  
Keyword(s):  
Sea Level ◽  
Wave Energy ◽  
Late Holocene ◽  
Sediment Supply ◽  
Southern Brazil ◽  
And Sea Level
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