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The Rangitata Diversion Race or RDR is a combined irrigation and power generation scheme that diverts water from the Rangitata River to irrigate over 66,000 hectares of farmland in Mid-Canterbury, New Zealand. The RDR project was the first major river diversion in New Zealand, and the largest irrigation scheme in the country.
Walls for Water: Pioneer Dam Building in New Zealand. Palmerston North: The Dunmore Press Ltd. ISBN 0-86469-313-3 . Retired civil engineer and dam inspector examines the development of New Zealand dam construction techniques and uses from the 1860s to the 1950s for municipal water supply, mining, kauri logging and development of the Lake ...
The accessibility and utilization of shadoofs have been linked to class. During the Egyptian Middle Empire and the New Kingdom, pleasure gardens featuring shadoof irrigation became a hallmark of luxury residences and consequently a status symbol. [12] Although not directly, shadoofs contributed to creating a class system, a barrier for some. At ...
Diagram showing the structure of an example SSTI installation. Subsurface Textile Irrigation (SSTI) is a technology designed specifically for subsurface irrigation in all soil textures from desert sands to heavy clays. The use of SSTI will significantly reduce the usage of water, [1] fertilizer and herbicide. It will lower on-going operational ...
A small center pivot system from beginning to end. Irrigation equipment can also be configured to move in a straight line, where it is termed a lateral move, linear move, wheel move or side-roll irrigation system. [11] [12] In these systems the water is supplied by an irrigation channel running the length of the field. The channel is positioned ...
A tank cascade is a system of irrigation tanks in single or multiple chains where water from a higher tank flows into lower tanks. Examples of tank cascades include Sri Lanka's tank cascade system, [6] the Indian city of Bangalore's cascading lakes in the Varthur lake series, [7] and the Indian city of Madurai's Vandiyur tank cascade system. [8]
Micro-irrigation, sometimes called localized irrigation, low volume irrigation, or trickle irrigation is a system where water is distributed under low pressure through a piped network, in a pre-determined pattern, and applied as a small discharge to each plant or adjacent to it. Traditional drip irrigation use individual emitters, subsurface ...
The figure illustrates the most used irrigation techniques as well as the least used options for treatment and recycling of water drainage. Collecting nutrient-rich irrigation water in reservoirs and pumping them back to crop fields during drought periods is an affordable practice and gaining increasing popularity among farmers in states like ...