阿鲁科尔沁旗紫花苜蓿需水规律与灌溉定额  

Water requirement regularity and irrigation quota of alfalfa in Ar Horqin Banner

作　　者：孙洪仁[1] 杨晓洁[1] 吴雅娜[1] 刘琳[1] 沈月[1] 

机构地区：[1]中国农业大学草地研究所,北京100193

出　　处：《草业科学》2017年第6期1272-1277,共6页Pratacultural Science

基　　金：农业部公益性行业项目"苜蓿高效种植技术研究与示范"(201403048);国家现代农业产业技术体系建设项目"现代牧草产业技术体系建设"(CARS-35)

摘　　要：为了给阿鲁科尔沁旗紫花苜蓿(Medicago sativa)灌溉提供科学依据,利用1984-2013年30年气象数据,采用联合国粮农组织推荐的彭曼-蒙特斯公式法,研究了阿鲁科尔沁旗紫花苜蓿需水规律和灌溉定额。结果表明,阿鲁科尔沁旗紫花苜蓿第1茬、第2茬、第3茬、第4茬、生长季、非生长季和全年需水量分别为221、187、169、179、755、70和825mm,需水强度分别为4.3、4.7、4.1、2.5、3.7、0.4和2.3 mm·d^(-1),灌溉需水量分别为194、118、66、131、508、56和564mm,灌溉定额分别为228、139、78、154、598、66和664 mm。To provide a scientific basis for alfalfa irrigation in Ar Horqin Banner, 30 years of meteorological data （from 1984 to 2013） and the FAO Penman-Monteith equation were employed to study the water requirement regularity and irrigation quota of alfalfa. The results showed that the water requirement of alfalfa for the first to fourth harvests, growing season, non-growing season, and full year in Ar Horqin Banner were 221, 187, 169, 179, 755, 70, and 825 mm, respectively. The water requirement rates were 4.3, 4.7, 4.1, 2.5, 3.7, 0.4, and 2.3 mm·d^-1, respectively. The irrigation requirements were 194, 118, 66, 131, 508, 56, and 564 mm, re spectively. The irrigation quotas were 228, 139, 78, 154, 598, 66, and 664 mm, respectively.

关 键 词：彭曼-蒙特斯公式 参照作物蒸散强度 参照作物蒸散量 需水量 需水强度 有效降水 灌溉需水量 

分 类 号：S541.9[农业科学—作物学]