scholarly journals Long-term morphodynamic evolution and energy dissipation in a coastal plain, tidal embayment

2008 ◽  
Vol 113 (F3) ◽  
Author(s):  
M. van der Wegen ◽  
Zheng Bing Wang ◽  
H. H. G. Savenije ◽  
J. A. Roelvink
Keyword(s):  
Energy Dissipation ◽  
Coastal Plain ◽  
Tidal Embayment ◽  
Morphodynamic Evolution

scholarly journals Effects of Density‐Driven Flows on the Long‐Term Morphodynamic Evolution of Funnel‐Shaped Estuaries

2018 ◽  
Vol 123 (11) ◽  
pp. 2901-2924 ◽  
Author(s):  
Maitane Olabarrieta ◽  
W. Rockwell Geyer ◽  
Giovanni Coco ◽  
Carl T. Friedrichs ◽  
Zhendong Cao
Keyword(s):  
Morphodynamic Evolution ◽  
Effects Of Density

Long-Term Liming Effects on Coastal Plain Soils and Crops

2001 ◽  
Vol 93 (6) ◽  
pp. 1305-1315 ◽  
Author(s):  
Gary J. Gascho ◽  
Myron B. Parker
Keyword(s):  
Coastal Plain

Long-Term Agronomic Drawdown of Soil Phosphorus in Mid-Atlantic Coastal Plain Soils

2017 ◽  
Vol 109 (2) ◽  
pp. 455-461 ◽  
Author(s):  
Nicole Fiorellino ◽  
Robert Kratochvil ◽  
Frank Coale
Keyword(s):  
Coastal Plain ◽  
Soil Phosphorus ◽  
Atlantic Coastal Plain ◽  
Atlantic Coastal

Long-Term Selective Retention of Natural Cs and Rb by Highly Weathered Coastal Plain Soils

2012 ◽  
Vol 46 (7) ◽  
pp. 3837-3843 ◽  
Author(s):  
J. M. Wampler ◽  
Eirik J. Krogstad ◽  
W. Crawford Elliott ◽  
Bernd Kahn ◽  
Daniel I. Kaplan
Keyword(s):  
Coastal Plain ◽  
Selective Retention

scholarly journals Long-Term Studies of Prescribed Burning in Loblolly Pine Forests of the Southeastern Coastal Plain

1987 ◽  
Author(s):  
Thomas A. Waldrop ◽  
David H. van Lear ◽  
F. Thomas Lloyd ◽  
William R. Harms
Keyword(s):  
Loblolly Pine ◽  
Coastal Plain ◽  
Prescribed Burning ◽  
Pine Forests ◽  
Southeastern Coastal Plain ◽  
Long Term Studies

scholarly journals Competing feedback in an idealized tide-influenced delta network

2021 ◽  
Author(s):  
Niccolò Ragno ◽  
Nicoletta Tambroni ◽  
Michele Bolla Pittaluga
Keyword(s):  
Equilibrium Configuration ◽  
Flow Conditions ◽  
Tidal Amplitude ◽  
Qualitative Comparison ◽  
River Deltas ◽  
Dual Response ◽  
Reference Parameters ◽  
Upstream Flow ◽  
Morphodynamic Evolution

The morphodynamic evolution of river deltas is intimately tied to flow and sediment partitioning at bifurcations. In this work, we investigate the long-term equilibrium configuration of a simple delta network using an analytical model, which accounts for the effect of small tidal oscillations.Differently from individual bifurcations, where tidal action is always a stabilizing factor, in the case of a tree-like delta with multiple bifurcations a dual response emerges.Specifically, depending on the values of four reference parameters function of tidal amplitude, upstream flow conditions, and on the geometry of the channels, tides can either promote or discourage an unbalanced discharge distribution. This behavior primarily concerns the apex bifurcation, which is affected by the variations of the relative tidal amplitude at the internal nodes. In turn these variations depend on how flow and sediment are diverted upstream. Finally, we discuss the outcomes of the model performing a qualitative comparison with field and experimental tide-influenced deltas. Results highlight the need of including in a unified scheme river-influenced (i.e. depositional) and tide-influenced (i.e. erosional) effects.

scholarly journals New records of the restinga antwren Formicivora littoralis Gonzaga and Pacheco (Aves, Thamnophilidae) in the state of Rio de Janeiro, Brazil: inland extended range and threats

2008 ◽  
Vol 68 (2) ◽  
pp. 391-395 ◽  
Author(s):  
MB. Vecchi ◽  
MAS. Alves
Keyword(s):  
Coastal Plain ◽  
New Records ◽  
Southeastern Brazil ◽  
Suitable Habitat ◽  
Northern Margin ◽  
Current State ◽  
Extended Range ◽  
Environmental Protection Area ◽  
Protection Area

The Restinga Antwren (Formicivora littoralis) has a narrow distribution range in southeastern Brazil, and it is a typical species of restinga habitat (sandy coastal plain vegetation). In this paper, we describe two new records for the species (22° 51' 45" S and 42° 14' 13" W; 22° 51' 14" S and 42° 11' 47" W) in the northern margin of the Araruama Lagoon, which represent a new inland limit for its distribution (11 km), besides assessing the current state of its habitat. We recorded supposed isolated subpopulations, most of them due the accelerated human-made fragmentation. The Massambaba Environmental Protection Area comprises the larger continuous extent of the suitable habitat for the Restinga Antwren, being essential to its long-term existence. However, the region lacks effective protected areas and, besides urgent practical measures, we recommend an accurate mapping and populational studies on this species.

scholarly journals The Potential Long-Term Impacts of Climate Change on the Hydrologic Regimes of North Carolina’s Coastal Plain Non-Riverine Wetlands

2019 ◽  
Vol 62 (6) ◽  
pp. 1591-1606
Author(s):  
J. Jack Kurki-Fox ◽  
Michael R. Burchell ◽  
Brock J. Kamrath
Keyword(s):  
Climate Change ◽  
North Carolina ◽  
Ecosystem Services ◽  
Water Table ◽  
Coastal Plain ◽  
Hydrologic Model ◽  
Hydrologic Regimes ◽  
Coastal Plain Wetlands ◽  
Impacts Of Climate Change

HighlightsBased on current emissions, mean water table decline in these wetlands will likely range from 25 to 65 cm by 2100.Projected changes could lead to a decline or loss of the important ecosystem services that wetlands provide to society.Results indicate a potential need to allocate more resources to developing strategies for managing wetlands.Abstract. Wetlands are especially at risk from climate change because of their intermediate landscape position (i.e., transition between upland and aquatic environments), where small changes in precipitation and/or evapotranspiration can have substantial impacts on wetland hydrology. Because hydrology is the primary factor influencing wetland structure and function, the important ecosystem services that wetlands provide may be altered or lost as a result of climate change. While a great deal of uncertainty is associated with the projected impacts of climate change on wetlands, hydrologic models and downscaled climate model projections provide tools to reduce this uncertainty. DRAINMOD is one such process-based hydrologic model that has been successfully adapted to simulate the daily water level fluctuations in natural wetlands. The objective of this project was to determine the range of possible impacts of climate change on the hydrologic regimes of non-riverine, non-tidal Coastal Plain wetlands in North Carolina. DRAINMOD models were calibrated and validated for two minimally disturbed, natural wetland sites using observed water table and local weather data. Two representative concentration pathway (RCP) scenarios were evaluated: RCP4.5 and RCP8.5. Nine models were selected from an ensemble of 32 climate models to represent the range of possible changes in mean precipitation and temperature. Downscaled climate projections were obtained from the U.S. Bureau of Reclamation. Simulations were run from 1986 to 2099, and results were evaluated by comparing the projected mean water table levels between the base period (1986-2015) and two future evaluation periods: 2040-2069 and 2070-2099. The model simulation results indicated that the projected mean water table level may decline by as much as 25 to 84 cm by the end of this century (2070-2099) for the RCP8.5 scenario and may decline by 4 to 61 cm for the RCP4.5 scenario. In Coastal Plain wetlands, declines in water tables can lead to the subsidence of organic soils, which can lead to the loss of stored carbon and increased risk of peat fires. Lower mean water levels can also lead to shifts in vegetation community composition and loss of habitat functions for wetland-dependent fauna. These results provide an overview of the potential impacts of climate change on North Carolina wetlands, and they provide a range of scenarios to inform and guide possible changes to water management strategies in wetland ecosystems that can be implemented now to limit the loss of ecosystem services over the long term. Keywords: Climate change, DRAINMOD, Hydrology, Modeling, North Carolina, Wetlands.

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