River basin closure: Processes, implications and responses
2010年4月1日 · Increasing water withdrawals for urban, industrial, and agricultural use have profoundly altered the hydrology of many major rivers worldwide. Coupled with degradation of water quality, low flows have induced severe environmental degradation and water has been rendered unusable by downstream users.
Wake Up to Realities of River Basin Closure - Taylor & Francis …
2008年3月3日 · River basin closure has developed into a sizeable challenge of extreme importance, yet the phenomenon is a major blind spot in natural resource management. It has silently crept up in many river basins of the world, and has now reached such an extent that 1.4 billion people live in river basins that are closed or facing closure soon.
大坝导致迁徙鱼类种群数量指数级下降 - fcwyq的博客 | fcwyq Blog
2024年5月15日 · River closure, typically for dam construction, involves diverting water flow into a tunnel or canal, increasing flow velocity, and preventing fish from migrating upstream. 河流封闭，通常是为了建造大坝，涉及将水流分流到隧道或运河中，增加流速，并阻止鱼类向上游迁移。
River Closures and Restricted Movements - American Commercial Barge Line
Brazos Lock Closure (WC 401) – Daytime closure started August 31st, 2023, and was expected to last thru November 2024 but has now been extended to February 28, 2025. LA-1 Drawbridge Closure (WC 35.6) – The bridge will have intermittent closures to boats from 0700-1100 and 1300-1800 each day for repairs starting January 27th thru February 7th .
Dams trigger exponential population declines of migratory fish
2024年5月10日 · We emphasize that river closure and dam impoundment have distinct impacts on migratory fish. River closure, typically for dam construction, involves diverting water flow into a tunnel or canal, increasing flow velocity, and preventing fish from migrating upstream.
River basin closure: Processes, implications and responses
2010年4月1日 · When supply of water falls short of commitments to fulfil demand in terms of water quality and quantity within the basin and at the river mouth, for part or all of the year, basins are said to be closing. Basin closure is an anthropogenic process and manifested at societal as well as ecosystem levels, and both its causes and consequences are ...
Closure dams are structures built to close a river, or the outlet from water sources and basin. The dam can be located on tidal or non-tidal rivers;
River basin closure: Processes, implications and responses
2010年4月1日 · Increasing water withdrawals for urban, industrial, and agricultural use have profoundly altered the hydrology of many major rivers worldwide. Coupled with degradation of water quality, low flows...
In this paper, a 1D–2D coupled river closure model is established to optimize the closure flow rate, closure period, and layout of a real closure project. The 1D transition model between...
Design and Experiments of River Closure on Open Diversion …
The river closure on the open diversion channel at the Three Gorges project (TGP) features its large flow discharge, high water head of river closure, high total water energy, etc.