摘要
很多大中型灌区在输配水过程中存在水位衔接不当的问题,加之田面高程存在起伏,使得灌溉时往往存在部分田面不能上水或受淹等问题。本文提出了空间灌溉率的概念,并利用GIS的三维分析功能研究了其与渠道渠首水位之间的关系。分析表明,空间灌溉率与渠首水位之间的关系符合Logistic曲线;针对船行灌区一支渠,得到该Logistic曲线的参数,并确定了一支渠渠首和干渠渠首不同空间灌溉率所需的水位,为灌区水位实时调控提供基础数据。
During the process of water transmission and distribution,many medium and large irrigation districts have the problem of improper water level convergence,and field surface elevation exists ups and downs,so part of the field surface can＇t be moisturized or submerged during irrigation. So the concept of the space irrigation rate was put forward in this study,and the relation between space irrigation rates and channel canal water level was studied by using three-dimensional analysis capabilities of GIS. Analysis showed that the relationship between the space irrigation rates and canal water level was consistent with the Logistic curve. Logistic curve parameters of Chuanhang Irrigation District Branch One were obtained,and water level of Branch One headwork and water level of canal headwork,which was required for different space irrigation rates,were confirmed. So the underlying data of regulation of water level in irrigation district with were provided.
作者
宋静茹
王艳明
杨江
宋常吉
SONG Jingru1,2 ,WANG Yanming3 ,YANG Jiang3, SONG Changji1,2(1. Yellow River Institute of Hydraulic Research, YRCC, Zhengzhou 450003, China ; 2. Yellow River Irrigation Drainage and Rural Water Supply Research Center, Xinxiang 453003, China; 3. Wuanbuhe Irrigating -area Administration of Hetao Irrigated District of Inner Mongolia, Dengkou 015200, China)
出处
《水资源与水工程学报》
CSCD
2017年第6期244-247,共4页
Journal of Water Resources and Water Engineering
基金
黄河水利科学研究院基本科研业务费专项(HYK-JBYW-2016-19)
黄河水利科学研究院基本科研业务费专项(HYK-JBYW-2017-09)
国家自然科学基金项目(51379085)
"十二五"农村领域国家科技计划课题(2012BAD08B05-2)
关键词
渠首水位
水位实时调控
数字高程模型
空间灌溉率
灌区
canal head level
real - time water level control
digital elevation model
space irrigation rat
irrigated district
