辽西玉米需水规律及灌溉预报研究  

Water requirement regulation and irrigation forecast of corn in western Liaoning

作　　者：亢振军[1,2] 尹光华[1] 刘作新[1] 张法升[1,2] 沈业杰[1,2] 佟娜[1,2] 谷健[1] 

机构地区：[1]中国科学院沈阳应用生态研究所,沈阳110016 [2]中国科学院研究生院,北京100049

出　　处：《中国科学院研究生院学报》2010年第5期614-620,共7页Journal of the Graduate School of the Chinese Academy of Sciences

基　　金：辽宁省博士启动基金(20071014);辽宁省重大项目(2008212003);辽宁省基金(20092079)资助

摘　　要：以辽西半干旱区2004～2008年的玉米生长参数及农业气象资料为依据,应用CROPWAT模型模拟分析了该区玉米的需水及灌水量.结果表明,玉米生育期需水趋势总体为正态分布,年需水量在572～645mm之间,苗期、拔节期、抽雄期、灌浆期需水量分别占总需水量的11.1%、30.2%、19.8%和38.9%;玉米灌溉需水量曲线因降雨差异在不同的年份呈现不同的变化型,基本分为抛物线型、中期平台型和双峰型3种;玉米的补充灌溉主要集中于7、8、9这3个月.The corn water requirement and irrigation forecast in semi-arid area in western Liaoning were studied by using CROPWAT model,based on corn growth parameters and agro-meteorological data from 2004 to 2008.The results indicate that the trend of corn water requirement was in a normal distribution in the growth period and the annual water demand was between 572 and 645mm.The water requirements in the seedling,jointing,tasselling,and filling stages were 11.1%,30.2%,19.8% and 38.9% of the total water requirement,...

关 键 词：玉米 需水规律 灌溉预报 CROPWAT 

分 类 号：S513[农业科学—作物学]