Irrigation

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  • Irrigation
definition
  • The artificial augmentation of the amount of water available to crops/plants, either by spraying water directly on to the plants or making it available to their root systems through a series of surface channels or ditches. 
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Abstract from DBPedia
    Irrigation is the process of applying controlled amounts of water to plants at needed intervals. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall. Irrigation also has other uses in crop production, including frost protection, suppressing weed growth in grain fields and preventing soil consolidation. In contrast, agriculture that relies only on direct rainfall is referred to as rain-fed. Irrigation systems are also used for cooling livestock, dust suppression, disposal of sewage, and in mining. Irrigation is often studied together with drainage, which is the removal of surface and sub-surface water from a given area. Irrigation has been a central feature of agriculture for over 5,000 years and is the product of many cultures. Historically, it was the basis for economies and societies across the globe, from Asia to the Southwestern United States.

    灌漑(かんがい)とは、農地に外部から人工的に水を供給すること。農作物の増産、景観の維持、乾燥地帯や乾期の土壌で緑化する際などに利用される。他にも農業生産において、作物を霜害から守る、穀物の畑で雑草を抑制する、土壌の圧密を防ぐといった用途もある。対照的に直接的な降雨のみで行う農業を乾燥農業と呼ぶ。灌漑システムは、塵の飛散防止、下水処理、鉱業などにも使われる。灌漑と排水は組み合わせて研究されることが多い。 なお、「灌」「漑」は二文字とも常用漢字の表外字のため、報道では新聞常用漢字表により「かんがい」とひらがなで表示されるのが一般的である。学校の教材等も同様である。

    (Source: http://dbpedia.org/resource/Irrigation)

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