内蒙古达茂旗饲草燕麦需水规律与灌溉定额

Water Requirement Regularity and Irrigation Quota of Oats in Darhan Muminggan Joint Banner of Inner Mongolia Autonomous Region

为内蒙古达尔罕茂明安联合旗(以下简称达茂旗)地区饲草燕麦的灌溉提供科学依据。采用联合国粮农组织推荐的彭曼-蒙特斯公式法,分析30 a(1991—2020年)的气象数据,针对内蒙古达茂旗地区的饲草燕麦需水规律和灌溉定额进行研究。内蒙古达茂旗饲草燕麦第1、第2茬和全生产期需水量分别为497、422 mm和919 mm,需水强度分别为5.5、4.1 mm/d和4.8 mm/d,灌溉需水量分别为435、292 mm和728 mm,灌溉定额分别为512、344 mm和857 mm。

In order to provide a scientific basis for irrigation of forage oats(Avena spp.)in the region of Darhan Maoming’an Union Banner(hereinafter referred to as Damao Banner),Inner Mongolia,The Penman-Monteith formula method recommended by the Food and Agriculture Organization of the United Nations(FAO)was used to analyze meteorological data for 30 years(1991 to 2020),and research was conducted on the water demand pattern of forage oats and irrigation quotas for the Damao Banner area in Inner Mongolia.The water requirements of forage oats in Damao Banner,Inner Mongolia,were 497 mm,422 mm,and 919 mm for the 1st,2nd,and full production periods,respectively.The water demand intensities were 5.5 mm/d,4.1 mm/d and 4.8 mm/d,respectively.Irrigation water requirements were 435 mm,292 mm and 728 mm,respectively.Irrigation quotas were 512 mm,344 mm and 857 mm,respectively.