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首页> 外文期刊>International Rice Commission Newsletter >The outlook for water resources in the year 2020: challenges for research on water management In rice production
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The outlook for water resources in the year 2020: challenges for research on water management In rice production

机译：2020年水资源前景：水稻生产中水管理研究的挑战

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Over recent years, the scarcity of and competition for water have been increasing worldwide. The opportunities for developing new water resources for irrigation are limited. Irrigated agriculture has traditionally consumed more than two-thirds of theavailable water supply. As the demand for industrial, municipal and other uses rises, however, less water will be available for agriculture. If food security is to be maintained, ways of increasing the productivity of water must be found. Within agriculture, rice is the dominant irrigated crop, accounting for approximately 30 percent of the total irrigated area. Over half of the rice area is irrigated. However, the potential for increasing the productivity of water in rice production is as yet unknown.
机译：近年来，世界范围内对水的稀缺性和竞争日益加剧。开发用于灌溉的新水资源的机会有限。传统上，灌溉农业消耗了超过三分之二的可用水。但是，随着对工业，市政和其他用途的需求增加，农业用水将减少。如果要维持粮食安全，就必须找到提高水生产率的方法。在农业中，水稻是主要的灌溉作物，约占总灌溉面积的30％。水稻面积的一半以上被灌溉。但是，尚不清楚在稻米生产中提高水生产率的潜力。

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