Results 101 to 110 of about 39,297 (315)

Gravel galore: Impacts of clear-cut logging on salmon and their habitats [PDF]

open access: yes, 2002
Timber harvest may have both direct and indirect effects on salmon, and with a few exceptions those effects result in lowered survival of salmon in their stream habitats compared with unlogged forest (Hicks et al. 1991b).
Hicks, Brendan J.
core   +1 more source

Detecting social‐ecological fit in Natura 2000 governance and management: Evidence from LIFE projects focused on forest protected habitat types

open access: yesPeople and Nature, EarlyView.
Abstract Protected areas represent complex social‐ecological systems that require governance and management approaches that valorise and enhance positive relationships between people and nature. This study analyses the alignment between social and ecological systems to detect the social‐ecological fit of projects focused on biodiversity conservation ...
Elena Andriollo   +4 more
wiley   +1 more source

Local scour at abutments: A review

open access: yesSadhana, 2004
Failure of bridges due to local scour has motivated many investigators to explore the causes of scouring and to predict the maximum scour depth at abutments. In this paper, a detailed review of the up-to-date work on scour at abutments is presented including all possible aspects, such as flow field, scouring process, parameters affecting scour depth ...
Abdul Karim Barbhuiya, Subhasish Dey
openaire   +2 more sources

Morphologische Entwicklung des Ucayali in Peru ohne menschliche Einflüsse [PDF]

open access: yes, 2013
The Ucayali River originates in the high Andean Mountains near the city of Cusco in Peru. After about 1,600 km, it joins with the Marañón River. Both the Ucayali River and the Marañón River are sources of the Amazon.
Alvarado-Ancieta, Cesar Adolfo   +1 more
core  

Enabling effective urban green space stewardship through planning: A qualitative comparative analysis in Southwest England

open access: yesPeople and Nature, EarlyView.
Abstract Amid increasing urbanisation and biodiversity decline, ‘effective stewardship’ of urban green space (UGS) is a complex but critical nature‐based solution for long‐term environmental, social and economic gain. Combining stewardship and sense‐of‐place frameworks with European nature‐based solutions guidance, we investigate which social and ...
Fay Kahane   +2 more
wiley   +1 more source

Sacrificial piles as a countermeasure against local scour around underwater pipelines

open access: yesWater Science and Engineering
Local scour around pipelines crossing rivers or in marine environments is a significant concern. It can lead to failure of the pipelines resulting in environmental side effects and economic losses.
Forough Raeisi   +3 more
doaj   +1 more source

Effect of semi-circular baffle blocks on local scour downstream clear-overfall weirs

open access: yesAin Shams Engineering Journal, 2013
Local scour downstream hydraulic structures may result in damage or complete structural failure and loss of life and property. In this paper, an experimental study was conducted to predict the scour geometry downstream a Fayoum type weir and to minimize ...
Fahmy Salah Fahmy Abdelhaleem
doaj   +1 more source

Lecture notes on sediment transportation and channel stability [PDF]

open access: yes, 1961
These notes have been prepared for a series of lectures on sediment transportation and channel stability given by the authors to a group of engineers and geologists of the U. S. Department of Agriculture assembled at Caltech on September 12-16,1960. The
Brooks, Norman H.   +2 more
core   +1 more source

Physical modeling of scour around tripod foundation structures for offshore wind energy converters [PDF]

open access: yes, 2010
As a step to further develop the share of renewable energies, the first German offshore test site alpha ventus has been installed in the North Sea in 2009 in water depths of 30 m, where experience shall be gained and made available for future offshore ...
Schlurmann, Torsten, Stahlmann, Arne
core   +2 more sources

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