| 榆阳区紫花苜蓿需水规律与灌溉定额 |
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| 引用本文： | 孙洪仁,杨晓洁,陈真,任榆田,田红卫,张博宇.榆阳区紫花苜蓿需水规律与灌溉定额[J].草地学报,2017(6):1227-1231. |
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| 作者姓名： | 孙洪仁 杨晓洁 陈真 任榆田 田红卫 张博宇 |
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| 作者单位： | 1. 中国农业大学草地研究所,北京,100193;2. 北京市昌平区天通苑南街道办事处,北京,102218;3. 陕西省榆林市饲料饲草监测检验站,陕西榆林,719000;4. 陕西省榆林市榆阳区草原工作站,陕西榆林,719000;5. 陕西省榆林市气象局,陕西榆林,719000 |
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| 基金项目： | 农业部公益性行业项目“苜蓿高效种植技术研究，示范”，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” |
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| 摘 要： | 为了给陕西省榆林市榆阳区紫花苜蓿(Medicago sativa L.)灌溉提供科学依据,利用1996-2015年20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,研究了榆阳区紫花苜蓿需水规律和灌溉定额。结果表明,榆阳区紫花苜蓿第1~4茬、生长季、非生长季和全年需水量分别为249、194、177、199、819、74和893mm,需水强度分别为4.1、4.8、4.3、2.4、3.7、0.5和2.5mm·d-1,灌溉需水量分别为209、143、79、98、529、57和586mm,灌溉定额分别为246、168、93、115、622、67和689mm。
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| 关 键 词： | 榆阳区 紫花苜蓿 灌溉定额 需水规律 需水量 需水强度 灌溉需水量 |
Water Requirement Regularity and Irrigation Quota of Alfalfa in Yuyang District |
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| Abstract: | To provide a scientific basis for alfalfa(Medicago sativa L.) irrigation in Yuyang district of Yulin city of Shaanxi province (YDYCSP),the water requirement regularity and irrigation quota of alfalfa in YDYCSP were studied using the 20 years meteorological data from 1996 to 2015 of YDYCSP and the method of FAO Penman-Monteith equation.The results showed that the water requirement of alfalfa in YDYCSP from the first to fourth harvest,growing season,non-growing season,and full year were 221,187,169,179,755,70 and 825 mm,respectively.The rate of water requirement were 4.3,4.7,4.1,2.5,3.7,0.4 and 2.3 mm · d-1,respectively.The irrigation requirement were 194,118,66,131,508,56 and 564 mm,respectively.The irrigation quota were 228,139,78,154,598,66 and 664 mm,respectively. |
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| Keywords: | Yuyang district Alfalfa Irrigation quota Water requirement regularity Water requirement Water requirement rate Irrigation requirement |
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