The technology of low pressure pipeline irrigation,as the important choice of current agriculture development,was introduced in this paper.The matters to be attended to were proposed,and the technology was compared with other irrigation project.Results showed there were several advantages and strong adaptability of this technology.It was indicated that the technology of low pressure pipeline irrigation was the primary direction of current agricultural developement,and its popularization and application could promote the development of water saving agriculture and ecological agriculture.

一、现状及存在的主要问题 一是项目评估指标不具体.农业综合开发是一项系统工程,随着农业科技进步和社会经济快速发展,特别是近几年农业结构调整、农业产业化经营、农产品标准化建设等思路的提出,给评估论证考核指标提出了新的要求,原来一些评估指标已经不能适应经济发展和统计工作需要,评估指标也应该作相应调整.同时,评估指标要易于取得、便于量化、容易操作.

针对农业综合开发面临的新形势和新任务,在分析农业综合开发项目管理创新的必要性和应遵循的原则基础上,探讨了农业综合开发项目管理在制度、机制和方法等方面创新的可行性,提出农业综合开发项目管理的创新思路.

设施农业阻断了雨水资源的直接利用.本文针对设施农业自身的特点及现状雨水资源利用存在的问题,提出了设施农业雨水资源利用的新思路.通过对设施农业雨水资源化潜力的分析计算,探讨了设施农业雨水资源高效利用的自压灌溉系统设计方法.该系统集开源、节能与节水于一身,具有较强的实用性和众多的优点.

Based on the analyses of the tendency of agricultural Structure readjustment and its requirement to efficient irrigation, the methods of reforming and reusing the existing watersaving irrigation engineering to meet for agricultural structure readjustment have been put forward in this paper.The techniques of efficient irrigation fitting in with agricultural structure readjustment and the united utilization model of several water resources for installed agriculture has been studied according to different plants.

采用非线性模型,推荐田间混凝土衬砌渠道纵横断面的优化设计方法,且可节省大量投资.给出了详细的设计参数及应用实例,具有较强的实用性.

<span id="ChDivSummary" name="ChDivSummary" class="abstract-text">江苏省高沙土地区位于通扬运河西南部，长江、靖泰运河、江平路北地区，主要包括泰州、南通、扬州三市的泰兴、姜堰、如皋、海安、江都五个县（市），共涉及108个乡（镇、场），Z131个行政村。土地总面积3190．23平方公里，耕地面积18．75万公顷，其中中低产田面积13．33...</span>