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1 节水灌溉的必要性和紧迫性根据《濮阳市节水灌溉发展规划》及《濮阳市2002年水资源公报》中对现状水平年在不同需水保证率下分析,范县95%年缺水0.28亿 m~3,随着国民经济的发展和小康社会建设步伐的加快,需水费逐年增加,在现状供水条件下,供需水矛盾日益突出,经测算在 p=50%、p=75%、p=95%需水保证率下,2010年分别缺水0.67、0.69、1.06亿 m~3;2015年分别缺水
1 The necessity and urgency of water-saving irrigation According to “Puyang City Water-saving Irrigation Development Plan” and “Puyang City Water Resources Bulletin 2002” in the current level of the year under the different water demand guarantee rate analysis, Fan County, 95% With the development of the national economy and the acceleration of building a moderately prosperous society, the water fee increases year by year. Under the current water supply conditions, the contradiction between supply and demand has become increasingly prominent. It is estimated at p = 50%, p = 75 %, P = 95% Under the water demand guarantee rate, in 2010, water deficit was 0.67, 0.691, 1.06 billion m 3, respectively; in 2015, water shortage