catchment-area

The river's catchment-area includes several small streams and hills.

Definition

1. Noun:
   • A geographical area draining into a river, reservoir, or other body of water: "catchment-area" refers to the region from which precipitation flows into a particular river, lake, or reservoir, often defined by natural watershed boundaries.
   • A region served by a specific facility or service: In planning and administration, "catchment-area" also means the area from which a school, hospital, or other public service attracts its users or clients.

Usage Examples

• Geographical sense:

  • The river's catchment-area covers over 500 square kilometers. (The region that drains into that river.)
  • Deforestation in the catchment-area can lead to flooding downstream. (The area where rain collects and flows into the water system.)

• Service sense:

  • The school's catchment-area includes several nearby neighborhoods. (The region from which students are drawn to attend that school.)
  • Hospitals often define a catchment-area to ensure equitable access to healthcare. (The geographic zone assigned to a particular medical facility.)

Advanced Usage

• "Catchment-area management": the practice of controlling land use and water flow within a drainage basin to protect water quality and quantity.

  • Effective catchment-area management reduces erosion and pollution. (Managing the entire region that drains into a water source.)

• "Catchment-area analysis": a study used to determine the population or resources within a specific region.

  • Urban planners used catchment-area analysis to decide where to build a new clinic. (Analyzing the demographic and geographic boundaries of a service zone.)

Variants and Related Words

• Catchment (noun): the act of catching or collecting water; also used as a short form for "catchment-area."

  • The reservoir's catchment is mainly mountainous. (The area that supplies water to the reservoir.)

• Watershed (noun): a synonym for "catchment-area" in the geographical sense, especially in North American English.

  • The watershed of the Amazon is enormous. (The drainage basin of the Amazon River.)

Synonyms

• Drainage basin: the area of land where all surface water flows to a single point (e.g., a river or lake).
• Watershed: the boundary or region draining into a water body; often interchangeable with "catchment-area" in geography.
• Service area: the region served by a facility (used in the administrative sense).

Related Idioms

• "In the catchment": within the area served or drained.

  • The new park is in the school's catchment. (Located within the region that sends students to that school.)

• "Beyond the catchment": outside the designated area.

  • Patients from beyond the catchment must pay extra fees. (Patients not living in the hospital's assigned region.)