Results 61 to 70 of about 11,123 (262)

Effects of Engineered Dam Releases on Benthic Assemblages During Drought and Comparison With Unregulated Reaches

River Research and Applications, EarlyView.
ABSTRACT River regulation following damming is often associated with deleterious downstream effects, in large part due to reduced total discharge and disruption of seasonal flooding. These effects would be expected to be exacerbated by drought, particularly extended drought.
Jeffrey G. Holmquist, Jutta Schmidt‐Gengenbach   +1 more
wiley   +1 more source

Development and Improvement of Habitat Suitability Criteria for Instream Habitat Assessments Conducted in Support of Environmental Flows in Florida

River Research and Applications, EarlyView.
ABSTRACT Florida's regulatory framework requires the establishment of minimum flows to protect aquatic ecosystems and water resources from significant harm. One of the primary methods used to evaluate significant harm is assessment of instream habitat, which relies on Habitat Suitability Criteria (HSC) curves that relate flow regimes and habitat ...
Eric J. Nagid, Kym Rouse Holzwart
wiley   +1 more source

Quantifying Activated Floodplains on a Lowland Regulated River: Its Application to Floodplain Restoration in the Sacramento Valley

San Francisco Estuary and Watershed Science, 2009
We describe a process and methodology for quantifying the extent of a type of historically prevalent, but now relatively rare, ecologically-valuable floodplains in the Sacramento lowland river system: frequently-activated floodplains.
Philip B. Williams, Elizabeth Andrews, Jeff J. Opperman, Setenay Bozkurt, Peter B. Moyle   +4 more
doaj  

Fundamental Hydraulic Geometry Relations as an Accessible Tool for Identifying Channel Instability Over National Scales

River Research and Applications, EarlyView.
ABSTRACT The geometry of alluvial river channels can give insight into their stability, which can inform predictions of morphological change, flood risk and ecological degradation. Fundamental hydraulic geometry relations can be used to estimate the equilibrium dimensions of stable river channels by evaluating the balance between the erodibility of bed
David Whitfield, Edwin Baynes, Stephen Rice, Richard Jeffries   +3 more
wiley   +1 more source

Longitudinal gradient in limnological variables in the Upper Paraná River: a brief description and the importance of undammed tributaries

Acta Limnologica Brasiliensia, 2017
Aim: Describe the limnological pattern in a longitudinal gradient in the Paraná River, a highly dammed river, in a stretch localized between two dams, but rich in undammed tributaries.
Natália Fernanda Santana, Larissa Strictar Pereira, Maria do Carmo Roberto, Sue Ellen do Amaral Gomes, Thomaz Aurélio Pagioro, Roger Paulo Mormul   +5 more
doaj   +1 more source

Seasonal Variation in Carbon Dynamics in the Lower Tocantins River: Influence of Discharge and Environmental Drivers

River Research and Applications, EarlyView.
ABSTRACT Tropical rivers play a key role in regional carbon budgets, yet greenhouse gas (GHG) dynamics in regulated systems remain poorly understood. This study investigates the seasonal variability of carbon dioxide (CO2) and methane (CH4) concentrations, isotopic composition (δ13C), and river‐atmosphere fluxes in the lower Tocantins River, a ...
Maria Gabriella da S. Araújo, Vania Neu, Victor M. Guedes, Marcelo Z. Moreira, Nicholas D. Ward, Alex V. Krusche   +5 more
wiley   +1 more source

In search of socio-ecological resilience and adaptive capacity: articulating the governance imperatives for improved canal management on the Barotse floodplain, Zambia

International Journal of the Commons, 2017
Governance of the commons through collective action remains an ongoing challenge in many rural areas of Africa. In this paper, we articulate how resource governance systems and proprietorship have affected management of canals on the Barotse Floodplain ...
Claudious Chikozho, Everisto Mapedza
doaj   +1 more source

A Method for Identifying Rainfall‐Runoff Events at Sub‐Hourly Time Scales: Applications for Nature‐Based Solutions and Water Resources

River Research and Applications, EarlyView.
ABSTRACT Understanding how changes in catchment conditions affect ecohydrology in response to rainfall‐runoff events is crucial when developing informed strategies to enhance flow resilience, restore natural habitats, interpret water quality data or reduce flood risk.
Josie Ashe, Daniella Montali‐Ashworth, Alan Puttock, Naomi Gatis, David Luscombe, Kirsty Frith, Pia Benaud, Richard E. Brazier   +7 more
wiley   +1 more source

Investigation on Aji-Chay River Meander Changes on Flood Plain [PDF]

نشریه جغرافیا و برنامه‌ریزی, 2014
Meanders, as a interesting water flow patterns in nature, is giving dynamic to courses of rivers.Creation of curvature on courses of rivers is give enough energy for migrate active channel on floodplain.
Maryam Bayati Khatibi
doaj  

Estimativa do coeficiente Priestley-Taylor em floresta monodominante Cambarazal no Pantanal Estimation of the Priestley-Taylor coefficient in the monospecific forest in northern Pantanal, Brazil

Revista Brasileira de Meteorologia, 2010
O coeficiente Priestley-Taylor (α) foi calculado baseado na estimativa da evapotranspiração pelo método de Bowen para floresta monodominante Vochysia divergens no Pantanal, Brasil.
Luciana Sanches, Marcelo de Carvalho Alves, José Holanda Campelo Júnior, José de Souza Nogueira, Higo José Dalmagro   +4 more
doaj   +1 more source