摘要
针对如何评价多种灌水方式的优劣,提出了一种评价模型。在传统的灰色平均关联度基础上,结合层次分析法确定各评价指标的权重,建立加权灰色关联综合评价模型,模型具有保序性,评价结果更加合理。先从产量、耗水和水利用效率3个方面对不同灌水方式进行评价,再将产量、耗水及水利用效率的评价结果作为评价指标再次进行灰色关联评价。评价结果表明:就产量评价结果而言,水分控制下限为80%的宽垄种植关联度最大;就耗水评价结果而言,水分控制下限为60%的宽垄种植关联度最大;就水利用效率评价结果而言,水分控制下限为70%的宽垄种植关联度最大。由最终评价可知,6种不同灌水方式中,水分控制下限为70%的宽垄种植关联度最大,关联度为0.613,即此灌水方式最佳。
In view of how to evaluate the advantages and disadvantages of various irrigation ways, an evaluation model is put forward. Based on the traditional grey average correlation degree and combined with HAP to determine the weight of each evaluation index, the weighted grey relational comprehensive evaluation model is established. The model has the character of order, and the evaluation result is more reasonable. First, the different irrigation ways is evaluated from three aspects of yield, water consumption and water use efficiency. Then, the evaluation results of yield, water consumption and water use efficiency are used as the evaluation indexes to evaluate by grey correlation evaluation again. The evaluation results show that ： in terms of yield evaluation results, the grey correlation degree of the 80% controlling moisture limit of wide ridge cultivation is the biggest ; in terms of water consumption evaluation results, the grey correlation degree of the 60% controlling moisture limit of wide ridge cultivation is the biggest ; in terms of water use efficiency evaluation results, the grey correlation degree of the 70% controlling moisture limit of wide ridge cultivation is the biggest. The final evaluation shows that the grey correlation degree of the 70% controlling moisture limit of wide ridge cultivation is the biggest among 6 different irrigation methods. The biggest grey correlation degree is 0.613 and the best way of irrigation is the 70% controlling moisture limit of wide ridge cultivation.
出处
《节水灌溉》
北大核心
2017年第6期41-45,共5页
Water Saving Irrigation
基金
国家自然科学基金项目(51279157)
河南省教育厅科学技术研究重点项目(12A210018)
