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  • Implications of peat accumulation at Point Escuminac, New Brunswick
  • C14 dating ; Canada ; Carbon ; Climatic warming ; Geochemistry ; Greenhouse effect ; Holocene ; New Brunswick ; Palaeo-environment ; Peat bog ; Quaternary
  • The results presented here raise some important questions concerning the calculation of peat accumulation rates based on radiocarbon dates from two or more depths and the implications to be drawn from these results on the effectiveness of peatlands
  • Evidence for the dissolution of magnetite in recent Scottish peats
  • Diagenesis ; Geochemistry ; Geochronology ; Human impact ; Humid environment ; Peat bog ; Scotland ; United Kingdom
  • Magnetic, hydrological, and geochemical data for 11 Scottish peat cores confirm previous reports that anthropogenic pollutants constitute the principal source of ferrimagnets to such environments, but indicate that postdepositional Fe3O4 persistence
  • Paleoclimatic implication of buried peat layers in a subalpine snowpatch grassland on Mt. Zarumori, northern Japan
  • Climatic warming ; Honshu ; Japan ; Monsoon ; Mountain ; Nivation hollow ; Palaeoclimatology ; Peat bog ; Wind speed ; Winter
  • Based on an understanding of the present snowpatch-forming process, the AA. examine the paleoclimatic implication of the buried peat layers formed around the 10th century, which occur in a snowpatch grassland on Mt. Zarumori in northern Japan.
  • A mid-Holocene alluvial deposit beneath blanket peat in the upper Liffey Valley, County Wicklow, Ireland
  • Alluvium ; C 14 dating ; Holocene ; Ireland ; Palaeo-environment ; Palaeovalley ; Peat bog ; Quaternary ; Stratigraphy
  • This paper describes a recently exposed cross section of a small valley buried beneath blanket peat on the upper slopes of the Liffey valley in the Wicklow Mountains, eastern Ireland, and examines its significance to the understanding of early
  • Paleosoils and peat bogs of Wrangel Island
  • Arctic Region ; Cold area ; Dating ; Grain size distribution ; Palaeosol ; Palynology ; Peat bog ; Pedogenesis ; Pollen diagram ; Russia ; Soil ; Soil properties
  • Biostratigraphy ; Climatic variation ; Ecosystem ; Finland ; Holocene ; Humid environment ; Palaeo-environment ; Peat bog ; Typology ; Vegetation dynamics
  • The A. examines the geographical patterns of the Finnish mires and the role of regional and local factors that lead to their spatial differentiation. Finland can be divided into 3 roughly latitudinal mire zones (from south to north) : the raised bog
  • zone, the aapa mire zone, and the palsa mire zone. Research on Finnish peat deposits has also shown that not all peat-stratigraphical changes are caused by past climate variations. They can also be due to the natural growth dynamics of the mires
  • , such as the long-tern development towards drier conditions on the surface of the raised bogs, and the local changes in water table resulting from growth of hummocks and hollows.
  • Recent permafrost degradation in bogs of the James Bay area, Northern Quebec, Canada
  • Canada ; Climatic change ; Environmental degradation ; Palsa ; Peat bog ; Periglacial features ; Permafrost ; Quebec
  • Small palsas with very thin frozen layers are present within the peat deposits east of James Bay. Most of these permafrost landforms are in an advanced stage of decay within raised bogs between 51°45N and 55°N. Air photographs, air-borne surveys
  • A 200-year tree-ring chronology of pine from a raised bog in Sweden : implication for climate change ?
  • C 14 dating ; Dendrochronology ; Geochronology ; Holocene ; Palaeo-environment ; Palaeoclimate ; Peat bog ; Sweden
  • A dendrochronological study was made on fossil tree trunk of Scots pine, Pinus sylvestris, preserved in a peat bog at Hanvedsmossen, 50 km SW of Stockholm. Of 56 sampled pines, 48 were assembled in a 204-year long floating chronology (1686-1483 BC
  • The sensitivity of peat-covered upland landscapes
  • Ecosystem ; Environmental management ; Global change ; Hydrochemistry ; Hydrology ; Impact ; Peat bog ; Sensitivity analysis ; United Kingdom
  • The components of ombrogenous mires are highly sensitive to change, especially in hydrology. Their vegetation may alter in response to very small changes in water level and/or water chemistry, whereas the underlying peat may undergo total
  • degradation on dewatering. The ultimate manifestation of sensitivity is peat erosion, which is widespread in the uplands and may, in places, have been ongoing for several hundred years. It is concluded that we may anticipate heightened sensitivity to cultural
  • pertubation of mire ecosystems during times of climate change, and thus that particular care in our approach to management of blanket peat landscapes is indicated at the present time.
  • Wind-splash erosion of bare peat on UK upland moorlands
  • England ; Humid environment ; Peat bog ; Sediment budget ; Soil erosion ; Splash ; United Kingdom ; Wind ; Wind erosion ; Wind speed
  • This paper presents the first results of a project that aims to determine the significance of wind action in the erosion of upland peat. Wind erosion monitoring is being undertaken at Moor House in the North Pennines on a 3-ha area of relatively
  • flat, sparsely vegetated peat. Significant horizontal fluxes of peat occur in both wet and dry periods. This is evaluated using the local micrometeorological data to try and predict sediment yields.
  • Sediment budget for an eroding peat-moorland catchment in northern England
  • England ; Erosion ; Gully erosion ; Peat bog ; Sediment budget ; Sediment transport ; United Kingdom ; Watershed
  • This paper describes a detailed contemporary sediment budget from a small peat-covered upland catchment in Upper Teesdale, northern England. The sediment budget was constructed by measuring : sediment transfers on slopes, sediment flux
  • were selected to represent the major erosion subsystems within the catchment : an area of bare peat flats, a pair of peat gullies, and a 300 m channel reach.
  • Biogeography ; Bog ; Classification ; European part of Russia ; Land development ; Morphometry ; Peat bog ; Plant cover ; Tver ; Typology ; Vegetation
  • Phytogeographical originality and conservation of peat bogs of Pays de Bitche (Northern Vosges Mountains, France)
  • Absorption ; Bog ; European part of Russia ; Heavy minerals ; Nature conservation ; Nitrogen ; Peat ; Peat bog ; Phosphate ; Pollution ; Volga ; Water
  • A Neolithic yew bow in the Polish Carpathians : evidence of the impact of human activity on mountainous palaeoenvironment from the Kamiennik landslide peat bog
  • Artifact ; C 14 dating ; Carpathian Mountains ; Flysch ; Holocene ; Human impact ; Landslide ; Mountain ; Neolithic ; Palaeo-environment ; Peat bog ; Poland
  • A unique artefact, the fragment of a bow made of yew wood, indicating the hunting activity of prehistoric man, was found within the sediments of the landslide peat bog (at the depth of 330 cm) formed on the Mt. Kamiennik (Polish Flysch Carpathians
  • ). The datings of this artefact using 14C method indicate its connection with the activity of the Neolithic man, related to the Funnel Beaker Culture. The detailed analyses of the peat sediments (palynological and lithological) formed since the Atlantic phase
  • Biogeography ; C 14 dating ; Cold area ; Ecosystem ; Finland ; Holocene ; Humid environment ; Palaeo-environment ; Peat bog ; Quaternary
  • This work seeks to define the relevant factors that may constrain the size, shape, and rate of mire development by directly dating basal peat deposits by radiocarbon, at five peatlands in the boreal region of southern Finland.
  • A postglacial history of vegetation and bog formation at Point Escuminac, New Brunswick
  • C 14 dating ; Canada ; Holocene ; New Brunswick ; Palaeo-environment ; Palynology ; Peat bog ; Pollen diagram ; Quaternary
  • Timing of the late-glacial climate reversal in the Southern Hemisphere using high-resolution radiocarbon chronology for Kaipo bog, New Zealand
  • C 14 dating ; Climatic change ; Lateglacial ; New Zealand ; North Island ; Palaeoclimatology ; Palynology ; Peat bog ; Quaternary ; Tephrochronology
  • Estimating the carbon stock of a blanket peat region using a peat depth inference model
  • Biogeography ; Carbon ; Ecosystem ; Ireland ; Model ; Mountain ; Peat bog ; Slope gradient ; Soil properties
  • In Ireland the detailed information that is required to calculate the peatland soil organic carbon (SOC) pool, such as peat depth, area and carbon density, is inconsistent in quality and coverage. The aim of this research was to develop an improved
  • method for estimating the depth of blanket peat from elevation, slope and disturbance data to allow more accurate estimations of the SOC pool for blanket peatlands. The model was formulated to predict peat depth at a resolution of 100 ha (1 km2
  • ). The model correctly captured the trend and accounted for 58 to 63% of the observed variation in peat depth in the Wicklow Mountains on the east coast of Ireland. Given that the surface of a blanket peatland masks unknown undulations at the mineral/peat
  • Characteristics of some organic components of peat in China and their geological significance
  • Analysis of 41 samples from 11 provinces provides a picture of the geochemical characteristics of the basic organic components of chloroform extract A. Infra red spectra and gas chromatography analysis indicates that the peat is unmature organic
  • matter and differs completely from ooze in lake or sea bottom. Vegetation species, bog type, evolution stage and sedimentary environment also affect the organic geochemical characteristics.-(TNC)