Results 91 to 100 of about 135,801 (308)

Meander‐Bend Erosion Dynamics Along a Gravel‐Bed River: Insights From Short‐Term UAV Monitoring

River Research and Applications, EarlyView.
ABSTRACT Riverbank erosion is a natural process in meandering rivers that contributes to sediment supply and geomorphic diversity, yet it can threaten infrastructure and human activities within the floodplain. Recently, many studies have used high‐resolution remote sensing technologies to measure bank erosion, but they often focus on technical aspects ...
Katarina Pavlek, Mateo Gašparović, Tomáš Galia   +2 more
wiley   +1 more source

A governance analysis of the Barotse floodplain system, Zambia: identifying obstacles and opportunities [PDF]

, 2013
The Barotse floodplain is an ecosystem characterized by a paradox of widespread poverty amidst high ecological and agricultural potential. The CGIAR Research Program on Aquatic Agricultural Systems (AAS) seeks to address this paradox on the assumption ...
Lunda, J., Madzudzo, E., Mulanda, A., Nagoli, J., Ratner, R.D.   +4 more
core  

Projected Temperature and Precipitation Expand Modeled Distributions of Reynoutria spp. While Modeled Distribution Changes for Ludwigia spp. Are Scenario‐Dependent at Watershed Scales in the Pacific Northwest, USA

River Research and Applications, EarlyView.
ABSTRACT Invasive species can fundamentally alter their introduced habitats by changing natural processes and harming native species crucial to functional ecosystems and human needs. Although the number of potential invasive species is large, the suitability of novel locations to support population establishment is limited by both physical and ...
Emily E. Smoot, Rebecca L. Flitcroft, Samuel S. Chan, Braeden Van Deynze, Sean Ewen, Sunny L. Jardine   +5 more
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  

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

Geomorphic Effects and Habitat Impacts of Large Wood at Restoration Sites in New England

River Research and Applications, EarlyView.
ABSTRACT Large wood (used interchangeably with the term “instream wood”), which refers to trees, logs and other wood within a channel, is beneficial to river ecosystems and is being used more frequently as a component of river restoration projects. We identified metrics to evaluate the effectiveness of large wood to promote ecological and geomorphic ...
Audrey J. Turcotte, Noah P. Snyder, Mathias J. Collins   +2 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

Origin of Grassy Lake [PDF]

, 1974
Two theories have been proposed to explain the formation of Grassy Lake. One attributes the formation of the swamp to earthquake; the other states that it is one of the many so-called oxbow lakes in the area.
Huffman, Robert Terry
core   +2 more sources

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

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