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当前位置: 首页 > 文章 > 黄土高原区滴灌枣树作物系数和需水规律试验 农业机械学报 2012,43 (11) 85+93-97
Position: Home > Articles > Experiment on Crop Coefficient and Water Requirement of Drip-irrigation Jujube in Loess Plateau of China Transactions of the Chinese Society for Agricultural Machinery 2012,43 (11) 85+93-97

黄土高原区滴灌枣树作物系数和需水规律试验

作  者：
胡永翔;李援农;张莹
单  位：
河北科技大学外国语学院;西北农林科技大学水利与建筑工程学院
关键词：
滴灌;枣树;需水量;作物系数
摘  要：
根据2009年陕西省米脂县孟岔试验站观测的气象资料,使用FAO Penman-Monteith公式计算了作物生育期内参考作物蒸发蒸腾量,通过实测取得了充分供水条件下枣树各生育阶段作物需水量。其中,萌芽展叶期、开花坐果期、果实膨大期、果实成熟期的作物需水量分别为68.1、117.4、224.4、66.2 mm;计算了黄土高原地区枣树各生育阶段的作物系数,分别为萌芽展叶期0.496、开花坐果期0.681、果实膨大期1.262、果实成熟期0.944。建立了作物系数与叶面积指数的函数关系,结果表明,两者之间存在二次曲线关系。
译  名：
Experiment on Crop Coefficient and Water Requirement of Drip-irrigation Jujube in Loess Plateau of China
作  者：
Hu Yongxiang1 Li Yuannong1 Zhang Ying2(1.College of Water Resources and Architectural Engineering,Northwest A&F University,Yangling,Shaanxi 712100,China 2.School of Foreign Language,Hebei University of Science and Technology,Shijiazhuang 050018,China)
关键词：
Drip-irrigation,Jujube,Water requirement,Crop coefficient
摘  要：
The experimental area located in Mizhi experimental station in loess plateau of China.According to the meteorological data observed by automatic weather station of Mizhi experimental station and using FAO Penman-Montieth equation,the crop reference evapotranspiration was calculated consequently in jujube's growth period.Additionally,combined with crop evapotranspiration of jujubes under sufficient irrigation,the crop coefficient of drip-irrigation jujubes was studied.The water requirements and crop coefficient was determined in each growing period of jujube.Water requirements(crop evapotranspiration) in sprout-leaf development period,flowering and fruit-setting period,fruit development period and fruit development period was 68.1 mm,117.4 mm,224.4 mm and 66.2 mm,respectively.Crop coefficient in each growth period was as follows: 0.496 in sprout-leaf development period,0.681 in flowering and fruit-setting period,1.262 in fruit development period,and 0.944 in fruit mature period.A function relationship was established between crop coefficient and leaf area index,and the results demonstrated that there was a quadratic curve relationship between crop coefficient and leaf area index.

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