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河北省水资源严重不足。建立节水型农业,已势在必行。实现这一目标,要有一个主攻方向。渠道灌溉耗用地面水资源最多,是第一用水大户,也是浪费惊人、节水潜力最大的“重点户”,应是节流的关键。近年来,为减少灌溉渗漏损失,各种类型的渠道防渗有了一定的发展并取得一些经济效果。但是由于渠道防渗涉及面广‘工程量大,人工材料用量多,投资多,因而对渠道防渗的必要性,特别是它的经济合理性等,还有不同的看法,妨碍着这项事业的开展。本文拟根据我省近年来灌溉渠道防渗的调查资料和沙河灌区改建规划防渗的资料,就防渗的必要性,特别是它的可行性,做一些论证分析,提出一些粗浅看法,同关心这项事业的同志们商榷。
Hebei Province, a serious shortage of water resources. Establishing water-saving agriculture is imperative. To achieve this goal, there must be a main direction. Channel irrigation consumes the most groundwater resources, is the largest water user, but also astonishing, water-saving potential of the “key households” should be the key to cutting costs. In recent years, to reduce the loss of irrigation seepage, various types of channel seepage prevention has made some progress and achieved some economic results. However, due to the extensive coverage of anti-seepage channels, there is still a great deal of disagreement over the necessity of channel seepage prevention, especially its economic rationality, due to the large amount of construction projects, the large amount of man-made materials used and the large investment. To carry out. Based on the survey data of irrigation canal seepage prevention in our province in recent years and the anti-seepage information of Shahe Irrigation District Reconstruction Planning, this paper makes some arguments and analyzes on the necessity of seepage prevention, especially its feasibility, puts forward some superficial opinions and concerns Comrades in this undertaking to discuss.