高效灌溉关键技术研究进展OA

Improving agricultural water use efficiency is regarded as crucial for achieving sustainable water resource utilization and ensuring food security,and the development of efficient irrigation technologies is considered the fundamental approach to resolving conflicts in agricultural water use.To this end,a systematic review of research progress in efficient irrigation was conducted from two perspectives:core components and key technologies.Regarding core components,advancements in the structural optimization,hydraulic performance,and numerical simulation of irrigation pumps,fertilization equipment,sprinklers,and drip emitters were summarized.In terms of key technologies,cutting-edge developments in uniform spraying,drip emitter anti-clogging,agricultural condition monitoring,and variable rate irrigation were outlined.The current research challenges were analyzed,including the low accuracy of pump transient flow modeling,the conflict between low-pressure uniformity and energy consumption in sprinklers,and the trade-off between anti-clogging performance and hydraulic efficiency in drip emitters.Future research directions were also discussed to provide insights for the intelligent advancement of efficient irrigation equipment.