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中国科学院大学学报 ›› 2010, Vol. 27 ›› Issue (5): 614-620.DOI: 10.7523/j.issn.2095-6134.2010.5.006

• 论文 • 上一篇    下一篇

辽西玉米需水规律及灌溉预报研究

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   

  1. 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
  • 收稿日期:2010-03-05 修回日期:2010-03-31 发布日期:2010-09-15
  • 通讯作者: 尹光华
  • 基金资助:

    辽宁省博士启动基金(20071014)、辽宁省重大项目(2008212003)和辽宁省基金(20092079)资助 

Water requirement regulation and irrigation forecast of corn in western Liaoning

KANG Zhen-Jun1,2, YIN Guang-Hua1, LIU Zuo-Xin1, ZHANG Fa-Sheng1,2, TONG Na1,2, GU Jian1,2   

  1. 1. Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China;
    2. Graduate University, Chinese Academy of Sciences, Beijing 100049,China
  • Received:2010-03-05 Revised:2010-03-31 Published:2010-09-15

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.

关键词: 玉米, 需水规律, 灌溉预报, CROPWAT

Abstract:

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, respectively. The corn irrigation requirement curves were of the parabolic type, the medium-term platform type, and double-peak type. The supplementary irrigation was fulfilled mainly in July, August and September.

Key words: corn, water requirement regulation, irrigation forecast, CROPWAT

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