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甘肃榆中县兴隆峡灌区渠道的渠底为砂砾层,渗漏极为严重:从峡口流入渠道的水量,到中游即损耗50%,到下游损耗70%。在旱象严重的情况下,渠水甚至中途断流,无法灌溉。从1953年村砌渠道防止渗漏开始,经过整理渠系、成片种植、定量灌水、常年灌溉,到1959年,灌溉面积已由33,000亩发展到53,000多亩,并创造了提高水的利用率的最新纪录——一个流量的水灌溉20多万亩地,和一套完整的灌溉管理经验。
Gully Yuzhong Xinglongxia irrigation channel bottom of the channel for the gravel layer, seepage is extremely serious: the channel into the channel from the gully to the middle reaches that is 50% loss to the downstream loss of 70%. In severe drought situations, the canal water can not even be cut off illegally. From 1953, village roads were protected from seepage, and through canalization, canal planting, quantitative irrigation and perennial irrigation, by 1959, the area of irrigated land was increased from 33,000 mu to 53,000 mu and water use efficiency was increased The latest record - a flow of water to irrigate more than 20 million mu of land, and a complete set of irrigation management experience.