摘要
利用1961-2015年吉林省中、西部气象站资料,采用Peman-Monteith公式计算主要种植区春玉米生长季蒸散量,并确认生育期内有效降水量,得到研究区域春玉米净灌溉量和各生育期灌溉需求指数,据此确定关键灌溉期;再利用WOFOST作物模型模拟代表站点在不同降水年型下各灌溉方案的产量情况,通过模拟产量的结果选取春玉米较优灌溉方案。结果表明:吉林省中西部有效降水量占春玉米需水量的69%左右,乳熟-成熟期、播种-出苗期和出苗-拔节期的灌溉需求指数较高,这3个生育期为春玉米灌溉关键期;吉林省中西部春玉米乳熟-成熟期灌溉效率最高,其次为播种-出苗期,可根据条件加强关键生育期灌溉。
Based on meteorological data from 1961 to 2015 of midwestern stations in Jilin Province, the Peman-Monteith formula was utilized to calculate the evapotranspiration of spring maize＇s growing season in the main growing areas and confirm the effective precipitation in the growing periods. The net irrigation amount of maize and the irrigation requirement index determined the critical irrigation periods; then the WOFOST crop model was used to simulate the yield of irrigation schemes for different precipitation years of the site, and the critical irrigation periods which were verified through the simulation yielded results to get a better irrigation plan. The results showed that the effective precipitation in the midwest of Jilin Province accounted for about 69% of the water demand, and the irrigation requirement index was higher in the sowing-seedling stage, seedling-jointing stage and milk-maturing stage. The three growth periods were the critical periods of spring maize to irrigate. When the spring maize was irrigated, the most efficient irrigation stage was the milking-maturing stage, followed by the sowing-emergence stage, multiply the irrigation time during the critical growth periods.
作者
张阳
王连喜
李琪
胡正华
郭春明
任景全
ZHANG Yang;WANG Lian-xi;LI Qi;HU Zheng-hua;GUO Chun-ming;REN Jing-quan(Jiangsu Key Laboratory of Agricultural Meteorology,Nanjing 210044,China;Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology,Nanjing 210044;Institute of Meteorological Science of Jilin Province,Changchun 130062)
出处
《中国农业气象》
CSCD
北大核心
2018年第6期411-420,共10页
Chinese Journal of Agrometeorology
基金
公益性行业(气象)科研专项(GYHY201506001)
公益性行业(气象)科研专项(GYHY201206018)
吉林省气象局青年基金项目(2014006)
中国气象局气象探测中心农业气象观测技术创新团队资助
关键词
WOFOST
关键生育期
灌溉
水分胁迫产量
产量差
春玉米
WOFOST
Critical growth period
Irrigation
Water-limited yield
Yield difference
Spring maize
作者简介
张阳（1993-）,硕士生,主要研究方向为农业气象与生态气象.E-mail：763728185@qq.com;通讯作者.E-mail：wlx4533@sina.com
