论文部分内容阅读
在干旱炎热的荒漠中用地下苦咸水种植蔬菜、鲜花和水果,每年出口欧洲等地赚取巨额外汇。这听起来不可思议,但却真实地发生在以色列。以色列阿拉法谷地农业基地,北起死海,南到红海,年降水量只有20~50mm,是内盖夫沙漠的一片盐碱地。经过30多年的开发,这片不毛之地已成为以色列重要的农业出口基地,蔬菜远销欧洲等地,为以色列赢得“欧洲的冬季厨房”美誉。其中一个重要原因就是以色列在20世纪60年代发明的滴灌技术。如使用漫灌和喷灌,地表肯定会出现盐渍,久而久之,作物根部容易被烧伤。
Use underground brackish water to plant vegetables, flowers and fruits in the hot, arid deserts and earn huge amounts of foreign exchange every year by exporting to Europe. This sounds incredible, but it really happened in Israel. Israel Arafat Valley agricultural base, north of the Dead Sea, south to the Red Sea, the annual rainfall of only 20 ~ 50mm, is the Negev desert a saline-alkali soil. After more than 30 years of development, this barren land has become Israel’s important export base for agriculture. Its vegetables have been exported to Europe and other places, winning the reputation of “Europe’s winter kitchen” for Israel. One of the important reasons for this is the drip irrigation technology invented by Israel in the 1960s. Such as the use of flood irrigation and sprinkler irrigation, the surface will certainly appear salty, over time, crop roots easily burned.