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本文通过对山西省水资源和农业灌溉用水保证率的定量描述，说明了山西省水资源的匮乏程度和面临的严峻状况，并阐述了山西省节水农业改造的必要性。文中重点指出渠道防渗是诸多农田灌溉节水措施中经济合理、技术可行的主要节水措施之一，同时又是当前农田灌溉节水改造的关键环节。文章简述了山西省渠道防渗的发展历史及现状，并对目前常用的几种防渗形式、防渗效果的优劣进行了分析比较，同时对不同防渗形式的经济效益进行了综合分析。结果表明，无论从节水总量，还是从经济效益，都说明渠道防渗在农田灌溉节水改造中均占有极大比重，对山西的经济发展至关重要。文章最后对各类灌区及各级渠道推荐了相应的防渗形式，并指出了现有渠道防渗存在的问题及今后研究改进的方向。
Based on the quantitative description of water resources and agricultural irrigation water requirement in Shanxi Province, this paper describes the shortage of water resources and the serious situation in Shanxi Province, and expounds the necessity of water-saving agriculture in Shanxi Province. The article points out that canal seepage prevention is one of the most economically reasonable and technically feasible water-saving measures for many farmland irrigation water-saving measures, and is also a key link in current farmland irrigation water-saving transformation. The article briefly describes the history and present situation of canal seepage prevention in Shanxi Province. It also analyzes and compares the advantages and disadvantages of several commonly used seepage prevention measures and seepage prevention measures. At the same time, the economic benefits of different seepage prevention measures are analyzed comprehensively . The results show that, both from the total amount of water saved, or from the economic benefits, both show that canal seepage prevention in the irrigation water saving farm reform account for a large proportion of Shanxi’s economic development is crucial. At the end of the article, the corresponding anti-seepage forms are recommended for all kinds of irrigation areas and all levels of channels. The existing problems of anti-seepage of existing channels and the direction of improvement are pointed out.