渠灌区节水灌溉技术的筛选组装和集成

渠灌类型区是我国灌区的主要组成部分，地面灌溉是渠灌区的主要灌水方式，发展渠灌区节水型地面灌溉对我国的农业节水有着重要作用。以陕西关中西部的宝鸡峡引渭灌区为例，对现行的节水型地面灌水技术进行了分析和筛选，结合灌区的现状和灌溉特点，提出了适宜于本灌区目前应用和推广的节水型地面灌水技术主要是畦田“三改”，并结合增大入畦单宽流量等技术措施进行组装和集成，实现提高灌水效率和灌水均匀度，减小灌溉用水量，节约用水的目的。

Sifting,Combination and Collection of the Technology of Water Saving Irrigation in Canal Irrigation Region

The canal irrigation region is the main component part of irrigation region in our country, and the surface irrigation is the main way of irrigation in canal irrigation region.It is important to develop the surface irrigation of water saving in canal irrigation region. Take the Baojixia irrigation region in the west of Shaanxi Guanzhong for an example, the technology of water saving surface irrigation in current is analyzed and sifted. Combined with the present situation and characteristic, the authors raise the technology of surface irrigation which is suitable for application and popularization in this irrigation region is "three changes" of furrow irrigation. By combining and collecting the technology of water saving surface irrigation with increasing the flow of unit width to rise the efficiency, even degree of irrigation, reduce the amount of water use of irrigation, and realize the aim of saving water.