基于SRFR模型的畦灌技术要素非劣解.docVIP

 基于 SRFR 模型的畦灌技术要素非劣解# * 5 10 15 20 25 30 35 40 45  摘要：研究了畦灌技术要素非劣解的方法，目的在于克服最优化方法的实际效果往往与最优 目标偏离较远的缺点，因为在实际运用过程中较难将每个灌水技术要素均精确控制在最优 解。以灌水均匀度、灌水效率为评价指标，利用 SRFR406 模型，对 5 个改水成数、31 个畦 长及 13 个单宽流量进行灌水质量评价，研究畦灌的技术要素非劣解。结果表明，在实际灌 水过程中，参照非劣解集，可随着畦长、可供流量等条件的变化灵活调整其它灌水技术要素， 以满足灌水质量的要求，而不像优化灌水技术方案只能选择灌水技术要素的最优解。因此， 在应用上，畦灌技术要素的非劣解优于最优解。 关键词：畦灌；灌水质量；灌水技术要素；非劣解 中图分类号：S275.3 Non-inferior Solution of Technical Parameters for Border Irrigation Based on SRFR model YU Xiaobin1,2, JIAO Xiyun1,2, XU Jianwu1,2 (1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, NanJing 210098; 2. College of Water Conservancy and Hydropower Engineering, Hohai University, NanJing 210098) Abstract: To overcome the disadvantage of practical effect of optimal solution deviating from optimal goal, non-inferior solution of border irrigation technical parameters is researched, because it is difficult that each technical element of irrigation is confine accurately to the optimal solution in practical application process. Irrigation uniformity and irrigation efficiency were used as the evaluating indexes to study on non-inferior solution of border irrigation technical parameters by using SRFR406 model to evaluate irrigation performance for 5 inflow cutoff, 31 border length and 13 unit width inflow. The results show that irrigation technical parameters can be adjusted flexibly to the change of border length and available inflow to meet the requirements of the irrigation quality referring to non-inferior solution, rather than the optimal solution can only be selected in optimization program of irrigation in the actual irrigation process. Therefore, the non-inferior solution is better than the optimal solution of border irrigation technical parameters. Keywords: border irrigation; irrigation performance; irrigation technical parameters; non-inferior solution 0 引言 地面灌溉是目前世界上应用最广泛的灌水方法[1]，畦灌是其主要形式之一。目前，我国 灌区沟（畦）规格不合理、土地平整状况较差、田间灌溉工程设施不够完善等，造成田间灌 水质量不高[2]、水资源浪费较严重、