Inter-annual variation and influencing factors of irrigation water use efficiency in the hilly and mountainous regions in Southwest China

• Published in: Guanʻgai paishui xuebao Vol. 44; no. 8; pp. 104 - 113
• Main Authors: HUANG Wenlin, SHAO Jing’an, WANG Chi, SHI Liwei, DAI Xiuying, LI Wei
• Format: Journal Article
• Language: Chinese
• Published: Science Press 01.08.2025
• Subjects: agricultural irrigation; irrigation water effective utilization coefficient; irrigation districts; principal component analysis; water-saving irrigation; the hilly and mountainous region of southwest china

【Objective】In the hilly and mountainous regions of Southwest China, improving irrigation efficiency is critical due to their complex terrains. This paper studies the inter-annual variation in irrigation water effective utilization coefficient (IWEUC) in these regions and identifies its main influenc...