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陕西省水利资源短缺,供需矛盾十分突出。为缓解水资源供需矛盾,发展节水技术势在必行。我省从1976年开始建设了58处试点,微灌面积6875亩,黑木耳微喷2万架。微灌的主要作物有玉米、小麦、棉花、蔬菜、苹果、柑桔、茶叶、葡萄、酥梨、弥猴桃等,都取得了节水、节能、增产的显著效益。有的地方自压喷灌与小水电结合或人饮与微灌联用,取得了更好的效果。《陕西喷灌区划》的制定为不同地区微灌指明了方向: (一)陕西属亚热带半湿润气候区,年降水量在1000mm以上,适宜采用微喷灌溉柑桔、茶叶和黑木耳。发展微灌面积可达52.14万亩,微喷黑木耳11.46万架。
There is a shortage of water conservancy resources in Shaanxi Province, and the contradiction between supply and demand is very prominent. To ease the contradiction between supply and demand of water resources, the development of water-saving technology is imperative. From 1976, our province started construction of 58 pilot projects with a total area of 6,875 mu for irrigation and 20,000 for black fungus. The main crops of micro-irrigation are corn, wheat, cotton, vegetables, apples, oranges, tea, grapes, pears and kiwi fruits. All these have achieved remarkable benefits of saving water, saving energy and increasing yield. In some places, self-pressure sprinkler irrigation combined with small hydropower or human drink and micro-irrigation have achieved better results. The formulation of “Shaanxi Spray Irrigation Zonation” indicates the direction of micro-irrigation in different areas: (1) Shaanxi belongs to the sub-humid semi-humid climate zone with an annual rainfall of more than 1000 mm. It is suitable for micro-sprinkler irrigation of citrus, tea and black fungus. Development of irrigation area up to 52.14 mu, micro-jet black fungus 114,600.