horizontal drainage
1Drainage model — may refer to: a surface drainage model or rainfall runoff model      see surface runoff, runoff model (reservoir) , or a software site providing free download of a conceptual rainfall runoff model (RainOff) based on a… …
2Drainage system (agriculture) — An agricultural drainage system is a system by which the water level on or in the soil is controlled to enhance agricultural crop production. Contents 1 Classification 1.1 Surface drainage systems 1.2 Subsurface drainage systems …
3Drainage system (Agriculture) — An agricultural drainage system is a system by which the water level on or in the soil is controlled to enhance agricultural crop production.=Classification=Figure 1 classifies the various types of drainage systems. It shows the field (or… …
4Drainage — (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… …
5Drainage 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… …
6drainage area — A horizontal projection of an area drained by a particular river system [16] …
7Well drainage — means drainage of agricultural lands by wells. Agricultural land is drained by pumped wells (vertical drainage) to improve the soils by controlling water table levels and soil salinity. Contents 1 Introduction 2 Design 3 Flow to wells 4 …
8Land drainage — may refer to:* surface drainage of the land related to: ** geomorphological pattern of natural drains, streams, rivers, etc. see drainage system (geomorphology) ** surface runoff of excess rainfall from the land, see surface runoff ** land… …
9Steam assisted gravity drainage — (SAGD) is an enhanced oil recovery technology for producing heavy crude oil and bitumen. It is an advanced form of steam stimulation in which a pair of horizontal wells is drilled into the oil reservoir, one a few metres above the other. Low… …
10Acid mine drainage — Yellow boy in a stream receiving acid drainage from surface coal mining. Acid mine drainage (AMD), or acid rock drainage (ARD), refers to the outflow of acidic water from (usually abandoned) metal mines or coal mines. However, other areas where… …
