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Irrigation Dictionary : Table of Contents (members login required)\t
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Term No.Term NameTerm Description
1902CalciphobesPlants which demand less calcium and are intolerant of soils containing large quantities of lime......
7398Calcium hydroxideAlso known as lime and chalk.  Used in treating sewage sludge and liquid wastes......
4939Calculated evapotranspirationEvapotranspiration as calculated by means of formulae (combination methods, e.g., Thornthwaite, Blaney-Criddle, or Penman etc.) and not actually measu.....
1231Calibration of current meterTesting under controlled conditions of current meters to determine the relation between rate of propellor or bucket wheel rotation and the velocity of.....
2160Caliche1 - A layer near the surface, more or less cemented by secondary carbonates of calcium and magnesium precipitated from the soil solution. It may occur.....
4359California method of boring, Stove pipe method, or Mud scow method A method of drilling wells, developed in California, and used chiefly for deep wells in unconsolidated material. The method involves the use of Califo.....
5794Calking compoundA compound similar in composition and properties to glazing compound and used to seal the joints around windows, doors, etc., especially where metal o.....
2370CamberA cross slope provided to the surface of the top of the dam to drain off surface water quickly......
1911CambiumA cylindrical strip, or layer of meristemic cells, which divide mostly in one plane and give rise to daughter cells from which a permanent tissue is u.....
2993CanalA manmade or artificial channel for carrying water that can be used for navigation purposes, or for conveying water for irrigation, domestic or indust.....
4002Canal evaporation lossesLosses due to evaporation from the water surfaces of canal flows; generally accounted for in total losses......
3208Canal land width, or Right-of-wayThe width of land occupied by or acquired for a channel section including its inside berms, banks, outside borrow-pits, if any, spoil banks, if any. I.....
3574Canal overflow spillwayThe overflow weir type of canal spillway......
5297Canal ScraperA water-propelled scraper for removing silt and water weeds from lined channels. The pressure of the water against a vertical plank wall, cut to fit t.....
3575Canal spillwaysA by-pass structure, usually designed to operate automatically, to discharge surplus and waste water into a waste channel above a set elevation and, i.....
1478CanalizationThe training of a river for navigation by developing a waterway of required depth either by construction of a series of locks and dams or by straighte.....
349Candela (cd)The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 x 1012 hertz and that has.....
7060CanopyThe uppermost layer of a forest or woodland, consisting of crowns of trees or shrubs......
5729CantThick piece of timber with or without squared edges, sawn from a flitch or a log and intended for further conversion into small sizes......
3788Cantilever bridgeA bridge, at least one portion of which projects beyond the supporting pier or piers and acts structurally as a cantilever......
2455Cantilever elementsThe cantilever element or cantilever is that portion of a dam that is contained within two vertical radial planes spaced a unit distance apart at the .....
2454Cantilever sectionA vertical section taken normal to the axis, usually oriented with the reservoir on the left......
5892Cantilever-type single-tier formworkFormwork when the studs extend considerably below the panel sheathing. The stud extensions are provided with two rows of anchor bolts, fastened to two.....
2448Canyon-shape factorThe ratio of the perimeter of the foundations and abutments of a dam measured along its axis and the maximum height of the dam......
2320Canyon, or CanonA deep valley with high steep slopes, generally with a stream at the bottom. Canyons are characteristic of regions where, owing to aridity or due to g.....
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