区域尺度内畦沟灌溉灌水技术要素组合的优化研究

以陕西省杨凌区进行的大田灌水试验为基础,采用SRFR软件对大田灌水试验的灌水质量进行模拟,将实测结果与模拟结果进行了对比。结果表明SRFR软件模拟畦灌和沟灌灌水质量可靠。以SRFR软件为基础,通过改变不同灌水技术要素组合,提出了研究区域内不同条件下畦灌和沟灌灌水技术要素的优化组合。该研究结果可提高现有畦灌和沟灌技术的灌水质量,达到常规地面灌溉的节水目的,同时也可为其它地区制定地面灌溉灌水方案提供方法借鉴。

Optimum Combination of Technique Elements in Border and Furrow Irrigation at Regional Scale

Based on field experiments carried out in Yangling,field application efficiency is simulated by SRFR software and simulated values are then compared with measured values.Results show that the margin of error is reasonable,indicating that SRSF software is appropriate for the analysis of border and furrow irrigation.According to the simulation by SRSF software,optimum combination of reasonable irrigation technique elements under different conditions of border irrigation and furrow irrigation is found through changing the combination of irrigation technique elements.The result from the study may be useful in avoiding waste of water resources,enhancing irrigation application efficiency and distribution efficiency,and attaining aim of saving water.Meanwhile,the method can provide some references for other regions to formulate a scientific irrigation scheme.