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在当今美国农业灌溉中,间歇水流灌溉是一种普遍引起人们重视的新的地面灌水技术,其基本原理参见“间歇水流灌溉——介绍一种新的地面灌水技术”。本文仅对美国目前已经采用的间歇水流灌溉技术的田间评价方法作一简要介绍,以供国内从事灌溉技术研究的科技工作者参考。一、间歇水流灌水技术的评价方法对间歇水流灌溉评价方法进行研究的根本目的是建立一种实测数据量不太大、精度适当的评价步骤,以得到间歇水流灌溉技术所具有的灌溉用水效率和灌溉均匀度。目前,间歇水流灌溉技术一般用于田间沟灌中,故本文着重介绍间歇水流沟灌的评价方法。美国农业工程师协会(ASAE)制订的连续沟灌的评价
In today’s U.S. agricultural irrigation, intermittent flow irrigation is a new groundwater irrigation technique that has drawn great attention. Its basic principle is described in “Intermittent Flow Irrigation - Introducing a New Technique of Surface Irrigation”. This article only briefly introduces the field evaluation methods of intermittent flow irrigation technology currently used in the United States for the reference of scientists engaged in irrigation technology research in China. First, the evaluation method of intermittent flow irrigation technology The fundamental purpose of the study on evaluation method of intermittent flow irrigation is to establish an evaluation step which is not too large in data volume and suitable in accuracy, so as to obtain the efficiency of irrigation water used by intermittent flow irrigation technique and Irrigation uniformity. At present, intermittent flow irrigation technology is generally used in furrow irrigation in the field, so this article focuses on the evaluation method of intermittent flow furrow irrigation. Evaluation of continuous furrow irrigation developed by the American Society of Agricultural Engineers (ASAE)