Definition of catchment in English:



  • 1[mass noun] The action of collecting water, especially the collection of rainfall over a natural drainage area.

    ‘water catchment continues the whole year round’
    • ‘Since we were unable to reach the villages upstream, we cannot establish whether the river had water catchment or storage facilities upstream.’
    • ‘Owen, who also helps with the construction, says the catchment will have a water filtration system.’
    • ‘We supply our own water catchment in tanks, from springs and dams.’
    • ‘Our experience with the lakes restoration project in Bangalore last year has proved that cleaning and desilting of large reservoirs improves catchment and water storage capacities.’
    • ‘As delighted as I am to see proper little homes being built at the informal settlement, I am struck by the lack of provision for water catchment.’
    • ‘My job was to assess the water flows and catchment yields of these various areas, so I know them well.’
    • ‘With a spigot and carefully fit top and screen, wooden wine barrels and recycled food-grade plastic barrels also can be made into water catchment devices.’
    • ‘Large areas of the rock are covered in concrete for catchment which is then channelled into huge underground reservoirs.’
    • ‘Maasai have complained that settlement in the drought-prone area by Kipsigis has harmed water catchment for the Ewaso Nyiro river, which the Maasai use to water their cattle.’
  • 2A catchment area.

    • ‘The Tararua Forest Park protects mountain landscapes, considerable tracts of indigenous forests and the upper catchments of many rivers.’
    • ‘Engineers looking at flood defences, modelling catchments, sewer systems and watercourses take many factors into consideration.’
    • ‘Drinking water is actually collected from this catchment as well.’
    • ‘He also recommends that all specialist services should be concentrated in major hospitals that serve big population catchments of between 350,000 and 500,000 people.’
    • ‘This is a very large catchment with a high rainfall and large swamps within the river basin.’
    • ‘Wherever rain is unusually torrential or persistent, it will not be long before river catchments fail to contain surface run-off and start to expand across their flood plains and beyond.’
    • ‘It suggested that 20 catchments / regions highly affected by salinity be addressed first.’
    • ‘Watershed catchments do indeed have much variation in their size, shape, topographic slope and irregularity, soils, land use and cover, and climate setting.’
    • ‘In some instances, sediments allow former channel types and depositional styles to be suggested, and they may also be indicative of erosional energy and weathering regime in the catchments that supplied them.’
    • ‘The Murray and Murrumbidgee rivers, their tributaries and catchments are at the heart of a national research project to improve water sustainability.’
    • ‘These include the catchments of the Rivers Clyde, Don, Tummel, Garry and Tay as well as Loch Awe, Scourie Lochs, Loch Arkaig, Loch Morar and the Loch Earn catchment areas.’
    • ‘There was little relief for dwindling water supplies, with only a small amount of water falling in the Rocky Creek Dam catchment.’
    • ‘In the future we all need to do more strategic planning across the whole river catchment.’
    • ‘We can only hope and pray that by the time he is of senior school age, 11 + education in this area will have improved, unfair catchments will have been abolished and children in this area will get the education they deserve.’
    • ‘We have been very pleased to see the idea adopted in other river catchments.’
    • ‘Flooding through the Goodwin Creek catchment has left kilometers of fences destroyed as water and logs swept down from the hills.’
    • ‘The Yarra River, swollen by the torrents of water falling over its catchment, broke its banks, as did other metropolitan creeks and rivers.’
    • ‘It also noted that a study of seven river catchments in the south-east found a direct relationship between river nitrate concentrations and the percentage of land area ploughed.’
    • ‘What we need is to adopt whole river catchment plans from mountaintop to estuary, instead of the fragmented approach we have at present.’
    • ‘If the latter was the case, there could be a higher risk of winter flooding in a number of the region's river catchments.’