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以色列地处亚热带,是个半干旱国家.每两三年遭受一次旱灾。该国大部分农业区的年降雨量约为200mm,雨量最大的地区也不过500mm,而大多数农作物需要的年降雨量在500—1000mm之间。另外,降雨也只集中于冬季的四个月。因此,农民不得不修建水库在冬季积雨,以保证夏季的农田灌溉用水。 为了充分利用有限的水资源,也为了增加农民的收入,以色列水产养殖工作者推出了“灌溉渔业”模式,将农田灌溉与水产养殖结合了起来,重复利用水库中的蓄水,即先进行水产养殖,再进行农田灌溉。这一模式包括两种类型:
Israel is a sub-tropical country in the subtropics with a drought every two or three years. Annual rainfall in most agricultural areas in the country is about 200 mm, with the highest rainfall of 500 mm, while most crops require annual rainfall of 500-1000 mm. In addition, the rainfall is only concentrated in the winter of four months. As a result, farmers have had to build reservoirs to accumulate winter rains to ensure summer farmland irrigation water. In order to make full use of the limited water resources and to increase the incomes of farmers, Israeli aquaculture workers have launched the “Irrigation and Fisheries” model that combines farmland irrigation with aquaculture to re-use water storage in reservoirs, that is, aquaculture Breeding, then farmland irrigation. This model includes two types: