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一前言为了防止喷灌时土壤的灌溉侵蚀和肥力流失,提高这种灌水方法的生产效率,保护土壤表层良好的结构状况,达到省水增产的目的,摆在我们面前的一项重要研究任务就是确定各种不同土壤的许可喷灌强度。所谓许可喷灌强度可以理解为对该种土壤来说一种最大可能的喷灌强度,当用该强度喷灌时,全部所降之水量能均匀地渗入土壤之中,而不破坏该种土壤之结构,亦不降低其肥力。
Preface To prevent irrigation erosion and loss of fertility during sprinkler irrigation, to improve the production efficiency of this irrigation method, to protect the surface structure of soil and to achieve the goal of saving water and increasing production, an important research task before us is to determine Permissible sprinkler irrigation intensity for a variety of different soils. The so-called permissible sprinkling intensity can be understood as the maximum possible sprinkling intensity for such soil, and when it is sprinkled with this intensity, the total amount of water descending can penetrate evenly into the soil without destroying the structure of that soil, Does not reduce its fertility.