安徽农业大学学报2024，Vol.51Issue(5)：872-880,9.DOI:10.13610/j.cnki.1672-352x.20241031.012
濉汴河灌区玉米需水量及灌溉用水量变化的气候响应
Climate response to water demand and irrigation water use of maize in Suibian River irrigation area
摘要
Abstract
In order to investigate the trends in maize water demand and irrigation water use,as well as the main influencing factors,this study calculated these variables based on daily meteorological data from 1960 to 2017 in the Suibian River irrigation area.Trend analysis and wavelet analysis were employed to investigate the changing patterns of maize water requirement and irrigation water use,while path analysis was utilized to identify the underlying causes of these changes.The results showed that the maize water requirement exhibited a signifi-cant decrease during the growth period in the Suibian River irrigation area.The irrigation water use in the seeding,jointing,and filling ripening did not exhibit a significant decreasing trend;however,there was a notable decrease trend during the tasseling and entire growth stages.The average annual water demand and irrigation water use for maize were 334.2 mm and 185.1 mm,respectively.The water demand of maize exhibited a cyclic pattern with periods of 3-12,13-28,29-42,and 43-64 years.Similarly,the irrigation water usage displayed a cyclic pat-tern with periods of 1-17,18-28,29-43,and 44-64 years throughout the entire growth period.Sunshine hours and wind speed were identified as the primary influencing factors on water demand during the maize grow-ing period.Additionally,precipitation was found to be the main determinants of irrigation water demand during this period.The research findings can serve as a scientific foundation for the development of irrigation systems,regional water resource planning,and management.关键词
玉米需水量/灌溉用水量/气候倾向率/小波分析/通径分析/濉汴河灌区Key words
maize water requirement/irrigation water use/climate tendency rate/wavelet analysis/path analysis/Suibian River irrigation area分类
农业科技引用本文复制引用
汪婧献,吴灏,周兆叶,陈小平,王盼盼..濉汴河灌区玉米需水量及灌溉用水量变化的气候响应[J].安徽农业大学学报,2024,51(5):872-880,9.基金项目
国家自然科学基金(52009118)和冰冻圈科学国家重点实验室开放基金(SKLCS-ZZ-2023,SKLCS-OP-2021-11)共同资助. （52009118）
