[1]盛统民,马英杰.水氮耦合桶栽枣树冠层光分布与叶面积指数关系[J].北方园艺,2019,43(12):20-26.[doi:10.11937/bfyy.20183592]
　SHENG Tongmin,MA Yingjie.Relationship of Water-nitrogen Coupling Between Canopy Light Distribution and Leaf Area Index on Jujube in Pot[J].Northern Horticulture,2019,43(12):20-26.[doi:10.11937/bfyy.20183592]

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水氮耦合桶栽枣树冠层光分布与叶面积指数关系

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 43卷期数: 2019年12 页码: 20-26 栏目: 出版日期: 2019-06-30

Title:: Relationship of Water-nitrogen Coupling Between Canopy Light Distribution and Leaf Area Index on Jujube in Pot

作者:: 盛统民1; 马英杰2; （1.新疆水利水电科学研究院，新疆乌鲁木齐 830049；2.新疆农业大学水利与土木工程学院，新疆乌鲁木齐 830052）

Author(s):: SHENG Tongmin1; MA Yingjie2; (1.Xinjiang Research Institute of Water Resources and Hydropower，Urumqi,Xinjiang 830049;2.College of Water Conservancy and Civil Engineering,Xinjiang Agricultural University,Urumqi,Xinjiang 830052)

关键词:: 桶栽红枣; 光分布; 叶面积指数; 水氮耦合; 回归模型; HemiView系统

Keywords:: jujube in pot; canopylight distribution; leaf area index; water-nitrogen coupling; regression models; HemiView system

DOI:: 10.11937/bfyy.20183592

文献标志码:: A

摘要:: 以阿克苏地区红旗坡农场新疆农业大学基地桶栽枣树为研究对象，运用HemiView数字植物冠层分析系统，研究枣树3种不同灌溉量（W1,20 mm；W2,30 mm;W3,40 mm）和4个施氮水平（N1，标准施氮肥量60%；N2，标准施氮肥量80%；N3，标准施氮肥量100%；N4，标准施氮肥量120%）共计6个处理下光分布与叶面积指数（LAI）的相关关系，并建立冠层光参数与LAI的回归模型。结果表明：枣树在生育期内透光率、直射光立地系数（DSF）及散射光立地系数（ISF）总体呈现先减小后增大的趋势且变化基本一致。在生育前期不同处理叶面积指数差异不显著，生育中期至生育后期差异显著，生育期内变化呈先增大后减小的变化规律，与冠层光参数呈相反的变化趋势，不同水氮耦合DSF、ISF与LAI符合多元线性回归模型，其调整后决定系数较高，R2>0.916。

Abstract:: Taking jujube tree planted in barrel at the base of Xinjiang Agricultural University of Hongqipo Farm in Aksu area as research object，the correlation between light distribution and leaf area index (LAI) under 6 treatments of three different irrigations volume (W1,20 mm；W2,30 mm;W3,40 mm) and four nitrogen levels (N1，standard nitrogen application rate 60%；N2，standard nitrogen application rate 80%；N3，standard nitrogen application rate 100%；N4，standard nitrogen application rate 120%) were studied by used HemiView digital plant canopy analysis system.The regression model of canopy light parameters and LAI was established.The results showed that the transmittance，direct light site coefficient (DSF) and scattered light site coefficient (ISF) of jujube trees decreased at first and then increased during the growth period.There was no significant difference in leaf area index among different treatments in the early growth stage.The variation of leaf area index between the middle growth stage and the later growth stage was obviously increased and then decreased，which was opposite to the canopy light parameters.The DSF，ISF and LAI of different water and nitrogen coupling were fitted with multiple linear regression model，and the adjusted decision coefficient was higher (R2>0.916).

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备注/Memo

第一作者简介：盛统民(1989-)，男，甘肃武威人，硕士，中级工程师，现主要从事节水灌溉新技术理论与研究等工作。E-mail:xjxndstm@163.com.责任作者：马英杰(1969-)，男，河北保定人，博士，教授，博士生导师，现主要从事节水灌溉等研究工作。E-mail:xj-myj@163.com.收稿日期：2018-12-17

更新日期/Last Update: 2019-07-17