一、前言为了正确执行计划用水,在灌区的管理工作中,量水是一项重要工作。目前我国各个灌区多半是利用梯形堰、喷嘴、巴歇尔槽、三角堰等进行量水。这种量水方法,主要是靠取得量水堰水尺的读数,然后再查预先制定的水位或上下游水位差和流量的关系曲线图表来求流量,一(?)夜要轮班观测数次,并据此进行统计水量。这一工作对水利技术人员来讲,并不困难,但是在今天灌区技术人员极端不足,而以非技术人员来代替做这一工作时,则确是一件困难的事,如果正确的执行计划用水,则于、支、斗、农、毛各级渠 I. Preface In order to properly implement the planned water use, the quantity of water is an important task in the management of irrigation districts. At present, most irrigated areas in China utilize trapezoidal weirs, nozzles, Parshall troughs, triangular weirs, etc. for measuring water. This method of measuring water is mainly based on obtaining the readings of the weir’s water gauge and then checking the pre-established water level or the relationship between the water level difference and the flow rate of the upper and lower reaches to find the flow rate, , And statistical water volume accordingly. This work is not difficult for water conservancy technicians. However, today there is an extremely inadequate number of technicians in irrigated areas. When non-technicians take the place of doing this work, it is indeed a difficult task. If the correct implementation plan Water, then, branch, bucket, agricultural, wool all levels of drainage