As the agency says, dredging is primarily a tool for improving navigation and, in some places, land drainage.
We will continue to work closely with the local community, conservation organisations, local authorities and the NFU to develop alternatives for land drainage in these areas".
In the 1960s, much of the river was dredged as part of a program to improve land drainage for agricultural purposes.
Drainage, in agriculture, the artificial removal of water from land; drainage is employed in the reclamation of wetlands, in the prevention of erosion, and as a concomitant of irrigation in the agriculture of arid regions.
For example, in many cities flies no longer play a major role in spreading intestinal infections, and land drainage, improved housing, and insecticide use have eliminated malaria in many parts of the world.
There is much gloom – hunting, pollution, land drainage – but Clare is ultimately buoyed both by the efforts of the curlews' champions and by its current Shrödinger's cat-like status, with the lingering possibility of a sighting permitting both hope and wonder to live on.
Informed by Bazalgette's experience of land drainage and reclamation while working as a railway engineer, London's embankments were designed not only to carry tunnels (including the underground railway), but also to help cleanse the river by narrowing and strengthening its flow through the city's centre.
In summer (November to April), with very flat land drainage, monsoonal rain, magnified tides, and wind piling up the sea on shore, the salt pan area is submerged by the sea, and behind it the land area is submerged by the drainage water backing up the blocked estuaries.
Ectogenic meromixis results from either the intrusion of seawater into a lake, as in the case of flooding from an unusually high sea level (e.g., Hemmelsdorfersee, in Germany), or the introduction of fresh water through land drainage and precipitation to a saline lake (e.g., Soda Lake, Nevada).
The tool can also be used pre-land drainage and presents the consequences of future artificial land drainage on water quality and gaseous emissions at a given site.
