Concept information
Preferred term
رواناب
Type
-
http://www.irandoc.ac.ir/onto/irandoc-meta/Concept
Broader concept
Narrower concepts
Scope note
- آن بخش از بارندگی که در سطح زمین و در رودها جاری شود
Definitions
- Runoff is a term used to describe the flow of water, from rain, snowmelt, or other sources, over the land surface, and is a major component of the water cycle. Runoff that occurs on surfaces before reaching a channel is also called a nonpoint source. If a nonpoint source contains man-made contaminants, the runoff is called nonpoint source pollution. A land area which produces runoff draining to a common point is called a watershed. When runoff flows along the ground, it can pick up soil contaminants such as petroleum, pesticides (in particular herbicides and insecticides), or fertilizers that become discharge or nonpoint source pollution.
Obsolete
- false
In other languages
-
English
URI
http://www.irandoc.acir/onto/irandoc/SWEETT11156
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