概念信息
此概念无该语言术语。
优选术语
定义
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A river type is a constructed ecological entity with limited internal variation in its biotic and abiotic components, which shows a minimal and constant biotic and abiotic discontinuity in comparison with other entities. Such river types might serve as 'units', for which an assessment system can be applied. A river type should always be defined on the basis of natural or near-natural reference sites.
(en)
创建: 2/21/23
上位概念
- surface water (en)
下位概念
- blackwater rivers (en)
- braided rivers (en)
- chalk streams (en)
- clearwater rivers (en)
- distributaries (en)
- headwaters (en)
- tributaries (en)
- whitewater rivers (en)
- речни меандри (sr)
是...的类型
- rivers (en)
其他语言
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德语
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法语
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捷克语
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罗马尼亚语
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书面挪威语
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斯瓦希里语
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土耳其语
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西班牙语
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英语
URI
http://aims.fao.org/aos/agrovoc/c_6f2739ce
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