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Showing 1 to 20 of 40 for “"pedogenesis"”.
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Pedogenesis on the Sefton Coastal Dunes, NW England
… within soil profile horizons, suggesting pedogenesis on the Sefton dunes initiates as raw sand, progressing to sand-pararendzinas through leaching of nutrients. Desalinization and decalcification processes lead to brown earth development, followed by increased acidicification, …
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Pedogenesis, Inventory, and Utilization of Subaqueous Soils in Chincoteague Bay, Maryland
Chincoteague Bay is the largest (19,000 ha) of Maryland's inland coastal bays bounded by Assateague Island to the east and the Maryland mainland to the west. It is connected to the Atlantic Ocean by the Ocean City inlet to the north and the Chincoteague inlet to the south. Water depth ranges mostly …
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Pedogenesis and geomorphic implications of soils developed on Blue Ridge alluvial fans, Virginia
Alluvial fans along the western footslopes of the Blue Ridge province, Virginia range over a linear distance of at least 200 km and spread westward up to 4.8 km. Certain soils formed on the fans appear old and highly weathered. Little detailed physical, chemical, or mineralogical data is available …
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Pedogenesis, weathering processes, and elemental distribution along a soil climosequence in the southern Piedmont
… to south on the Piedmont. The effective depth of pedogenesis in the Georgia and Alabama soils studied is nearly twice that of soils in Virginia and North Carolina, closely corresponding to calculated effective leaching indices developed for each site. Kaolinite and gibbsite are poor indicators of …
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Selective accrual and dynamics of proteinaceous compounds during pedogenesis: testing source and sink selection hypotheses
… is strong evidence that the processes of pedogenesis and ecosystem development are parsimonious and predictable. Our research demonstrated fundamental understanding of behavior of proteinaceous compounds at the molecular species level, and further provided their partitioning mechanisms …
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The effectiveness of actively accumulating dust in rejuvenating soils and ecosystems in a super-humid, high weathering and leaching environment, West Coast, South Island, New Zealand
… gradients, soils were analysed for indicators of pedogenesis pathways (soil morphology, fractionation of pedogenic oxides, phosphorus (P) and particle sizes), and ecosystem fertility was evaluated by describing vegetation communities and foliar nutrient concentrations. Across the chronosequence, …
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The Geologic and Archaeological History of the Dickie Carr Site 41PR26
… floodplain, and channel deposits with extensive pedogenesis. The unit is Late Pleistocene in age and contains the remains of Mammuthus columbi. The upper stratigraphic unit is comprised of terrace and floodplain sediments with well-expressed pedogenesis. The unit is Early Holocene in age with …
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Vliv dominantních druhů stromů na půdní vlastnosti
… the well- developed soils in late stages of pedogenesis. Post-mining sites represented soils where pedogenesis was in the initial state. I found out that soil age is the controlling factor of carbon sequestration. In well-developed soils more C was stored under conifers. In initial soils on …
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Late Quaternary sedimentary architecture and depositional history of the Monahans Dune Field, Winkler County, TX.
… record of eolian and palustrine deposition, and pedogenesis. This study analyzes the depositional sequence, geometry and chronology of Blackwater Draw Formation (BWD) and coeval lacustrine sequence. Sonic boring infill logs and geophysical exploration records were used to define the basal …
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Primary plant succession at Franz Josef Glacier: Aspects of predictability and ecophysiology: A dissertation submitted in partial fulfilment of the requirement for the Degree of Bachelor of Horticultural Science (Honours) at Lincoln University
… from a previous study of plant succession and pedogenesis at Franz Josef Glacier by Stevens (1963; 1968). Plant species diversity and abundance were recorded on the 3 youngest sites, aged 45 to 85 years in the present study. Floristic composition was compared to composition recorded on the same …
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Assessing Pleistocene climate on the Southern High Plains through geochemical and physical characteristics of paleosols archived in the Blackwater Draw Formation
… by periods of landscape stability accompanied by pedogenesis. Here we utilize geochemical and physical properties of loess-paleosol couplets recorded in the Black Water Draw Formation are used to interpret on climatic conditions of the Pleistocene. Petrographical and geochemical evidence indicates …
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Analysis of Reconstructed Mine Soils on Reclaimed Coal and Mineral Sands Mined Lands in Virginia
… interpretations. For coal mine soils, long-term pedogenesis was assessed in sandstone (SS) and/or siltstone (SiS) spoils with and without surface amendments. For mineral sands mined lands, I evaluated their spatial variability with respect to underlying relic mining influences and rowcrop …
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PALEOPEDOLOGY AND PALEOGEOMORPHOLOGY OF THE EARLY OLIGOCENE ORELLA AND WHITNEY MEMBERS, BRULE FORMATION, WHITE RIVER GROUP, TOADSTOOL GEOLOGIC PARK, NEBRASKA
… Whereas all paleosols formed through top-down pedogenesis in alluvial settings, paleosols in aeolian-dominated settings formed though pedogenic upbuilding during aggradational phases and through top-down pedogenesis during depositional hiatuses. The disparity between each style of pedogenic …
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Evaluating Vegetation, Root, and Media Characteristics of a Bioretention Installation and their Influence on Stormwater Retention
… while incorporating clay and organics for pedogenesis and vegetation survival. Examining connections between stormwater retention, growing media, vegetation, and root parameters improves the overall understanding of the interactions influencing stormwater bioretention.
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Influence of climate and the expansion of C4 grasses on sequence-scale cyclicity and landscape development during the late Miocene to Pleistocene of West Texas.
… concentration, suggesting that sedimentation and pedogenesis are influenced by third- to fourth-order global climate cycles.
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Reconstruction of environmental and climate dynamics using multi-proxy evidence from palaeosols of the Western Cape, South Africa
… were used to calculate weathering intensities, pedogenesis, palaeotemperature and palaeoprecipitation for the various locations using geochemical and stable isotope data. Results of this study indicate that palaeosol-based proxies have the potential to provide snapshots into the …
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Weathering Regimes and Pedogenic Variability on Large Boulders, Karkevagge, Northern Scandinavia
… microenvironment are important to weathering and pedogenesis in Karkevagge; (7) Despite characterization as weakly developed soils, embryonic spodic properties are evident in a number of the boulder-top soils; and (8) While Karkevagge is a mild arctic environment, and boulder-top soil development …
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Belowground Fungal Community Change Associated with Ecosystem Development
… that fungal communities would change with pedogenesis, that these changes would correlate with vegetation community change, and that they should show change of composition and diversity as the seasons change. Chapter 1 discusses the main topics related to this dissertation. Chapter 2 …
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PALEOCLIMATE DURING DEPOSITION OF THE GREATER TWILIGHT PARK CONGLOMERATE, UPPER DEVONIAN, SOUTHEAST NEW YORK
… At four locations, floodplain facies exhibiting pedogenesis were selected for analysis due to their proximity to layers of the GTPC. Field observations of paleosols show vertic features and clay translocation, indicating seasonal wetting and drying, with sufficient precipitation for an udic …
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Soil mineralogy of an upper coastal plain landscape in Virginia
… on pH, CEC, and particle size distribution to pedogenesis in the area. Coastal Plain soils had sandier subsurface horizons than Piedmont soils. The above-scarp soils (> 75 meters) were the most mature Coastal Plain soils and approached the kaolinitic Piedmont soils reasonably well in mineralogy …
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