影响土地整理规划设计水平衡分析的主要因素

土地整理规划设计的重要内容是农田水利工程布局,而农田水利工程布局则依据水平衡分析,因此,水平衡分析直接关系到土地整理规划设计的科学与否。水平衡分析应从项目区供水能力、地表径流利用系数等分析供水量,从农作物的种植结构、灌溉保证率、复种指数、灌溉定额等分析需水量,从而确定是否采取工程措施,保证供水量大于需水量,满足农田灌溉要求。以四川富顺县福善镇土地整理项目为例,探讨水平衡分析过程的主要影响因素,以期对土地整理项目农田水利工程布局能起到借鉴作用。

Main Factors of Water Balance in Land Consolidation Planning and Design

Planning and design of land consolidation was an important part of the layout of farmland water conservancy projects,and the layout of farmland water conservancy project was based on the analysis of the water balance.Therefore,the water balance of land consolidation directly related to the scientific character of planning and design of land consolidation.Water supply could be analyzed from water supply capacity of the project area and the use of surface runoff coefficient.Water demand could be analyzed from the cultivation of crops,irrigation guarantee rate,replanting index and scale irrigation.So whether or not to take measures to ensure that water supply was more than water demand to meet the irrigation requirements was determined.In this paper,Fushun County,Sichuan Fu Shan town land consolidation project as an example,the main factors of water balance analysis could play a reference on land distribution of farmland water conservancy projects.