玉米冠层对喷灌水力性能影响的研究进展  

Research Progress on the Influence of Corn Canopy on Hydraulic Performance of Sprinkling Irrigation

作　　者：马文利 朱德兰[1,2] 葛茂生[1,2] MA Wenli;ZHU Delan;GE Maosheng(College of Water Resources and Architectural Engineering of China,Northwest A&F University,Yangling,Shaanxi 712100,China;Institute of Water Saving Agriculture in Arid Areas of China,Northwest A&F University,Yangling,Shaanxi 712100,China)

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100 [2]西北农林科技大学中国旱区节水农业研究院,陕西杨凌712100

出　　处：《水利与建筑工程学报》2021年第3期1-9,共9页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金项目(52009111)。

摘　　要：喷灌水力性能是评价喷灌系统设计与应用效果的重要依据,一般包括喷灌强度,喷灌均匀度和打击强度等指标。玉米冠层作为喷灌水滴抵达地面之前的屏障,对各喷灌水力性能指标均会产生影响。文章对玉米冠层对喷灌水力性能影响方面的研究现状进行了总结归纳,从玉米冠层对喷灌水量再分配、喷灌水量分布和喷灌打击强度的影响等角度进行了梳理分析,并针对研究薄弱环节提出建议:加强对玉米冠下喷灌水滴动能分布时空变异特征的定量描述,明晰玉米冠层结构参数对冠下水滴动能分布影响机制,实现对玉米冠下喷灌水滴动能分布的优化调控。以期进一步提升喷灌水力性能,为喷头优化设计与选型和喷灌系统的田间管理开拓新思路。Hydraulic performance of sprinkling irrigation is an important indicator to evaluate the design and application effects of sprinkling irrigation system,which generally includes sprinkling irrigation intensity,uniformity coefficient of sprinkling irrigation,hit intensity of sprinkling irrigation and other indexes.As a barrier before sprinkling irrigation water droplets reach the ground,corn canopy has effects on each hydraulic performance index of sprinkling irrigation.In this paper,the research status of the influence of corn canopy on the hydraulic performance of sprinkling irrigation is summarized and analyzed from aspects such as the influence of corn canopy on the redistribution of sprinkling irrigation water,the distribution of sprinkling irrigation water and the hit intensity of sprinkling irrigation.Moreover,suggestions for research deficiencies are proposed:the quantitative description of temporal and spatial variation characteristics of kinetic energy distribution of sprinkling irrigation water droplets under corn canopy shall be strengthened,the influence mechanism of corn canopy structural parameters on kinetic energy distribution of water droplets under corn canopy shall be clarified and the optimal regulation of kinetic energy distribution of sprinkling irrigation water droplets under corn canopy shall be realized so as to further improve the hydraulic performance of sprinkling irrigation and explore new ideas for the optimal design and model selection of sprinkler head and the field management of sprinkling irrigation system.

关 键 词：喷灌水力性能 喷灌打击强度 水滴动能分布 优化调控 

分 类 号：S275.5[农业科学—农业水土工程]