parallel drainage
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parallel drainage pattern — A drainage pattern in which the streams and their tributaries are regularly spaced and flow parallel or subparallel to one another and tributaries characteristically join the mainstream at approximately the same angle, over a considerable area … Glossary of landform and geologic terms
parallel drainage system — a pattern of rivers caused by steep slopes with some relief, often found in mountainous areas. The rivers are fast and straight with few tributaries. See also annular, dendritic, deranged, rectangular and trellis drainage systems … Dictionary of ichthyology
Drainage system (geomorphology) — In geomorphology, a drainage system is the pattern formed by the streams, rivers, and lakes in a particular drainage basin. They are governed by the topography of the land, whether a particular region is dominated by hard or soft rocks, and the… … Wikipedia
Drainage system (Geomorphology) — In geomorphology, a drainage system is the pattern formed by the streams, rivers, and lakes in a particular watershed. They are governed by the topography of the land, whether a particular region is dominated by hard or soft rocks, and the… … Wikipedia
Drainage [1] — Drainage,1 eine Anlage zur Entwässerung, zur Beseitigung der in der Ackerkrume und im Untergrund angesammelten schädlichen Feuchtigkeit vermittelst unterirdisch eingelegter Sickerungen. Notwendig ist die Beseitigung der stauenden Nässe im Boden… … Lexikon der gesamten Technik
Drainage — (n. d. engl. to drain, spr. drēn, »ableiten«) ist die Befreiung nassen und versumpften Bodens von seiner überschüssigen Nässe durch unterirdische Leitungen. Dieses Verfahren war schon im Altertum (Columella, II, 2, 9), wenn auch in äußerst… … Meyers Großes Konversations-Lexikon
Drainage equation — A drainage equation is an equation describing the relation between depth and spacing of parallel subsurface drains, depth of the watertable, depth and hydraulic conductivity of the soils. It is used in drainage design. Parameters in Hooghoudt s… … Wikipedia
drainage — /dray nij/, n. 1. the act or process of draining. 2. a system of drains, artificial or natural. 3. See drainage basin. 4. something that is drained off. 5. Surg. the drainage of fluids, as bile, urine, etc., from the body, or of pus and other… … Universalium
drainage system — several types of drainage system for rivers are recognised, namely annular, dendritic, deranged, parallel, rectangular and trellis (all q.v.) … Dictionary of ichthyology
irrigation and drainage — ▪ agriculture Introduction artificial application of water to land and artificial removal of excess water from land, respectively. Some land requires irrigation or drainage before it is possible to use it for any agricultural production; other… … Universalium
Perkutane transhepatische Drainage — PTD. Die perkutane transhepatische Cholangiodrainage (PTCD), auch perkutane transhepatische Drainage (PTD) genannt, ist ein interventionelles radiologisches Verfahren, bei dem mit Hilfe einer dünnen Hohlnadel unter Durchleuchtungskontrolle… … Deutsch Wikipedia
