| 葡萄生长对交替滴灌的响应 |
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| 引用本文： | 王卫华,李淑芹,吴忠东.葡萄生长对交替滴灌的响应[J].排灌机械工程学报,2014,32(2):179-184. |
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| 作者姓名： | 王卫华 李淑芹 吴忠东 |
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| 作者单位： | 1.昆明理工大学现代农业工程学院, 云南 昆明 650500; 2.淄博市水利勘测设计院, 山东 淄博 255048; 3.山东理工大学资源与环境工程学院, 山东 淄博 255048 |
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| 摘 要： | 针对极端干旱区水资源匮乏的现状,以大田葡萄为研究对象,采取根系分区交替滴灌方式研究葡萄生理指标和根区土壤水分分布的变化影响.结果表明:葡萄新枝生长量和叶面积指数随时间的变化过程均可用Logistic模型进行描述,且通过单因素方差分析得出,交替滴灌和常规滴灌的叶面积指数差异不具有统计学意义,说明交替滴灌对植物光合作用主要器官--叶片的生长无明显影响;在棵间蒸发、植物根系吸收以及重力势和水势梯度的共同作用下,交替滴灌条件下沟、垄土壤含水率交替上升,且土壤含水率变化范围主要集中在0~60 cm土层,交替滴灌的耗水量和棵间蒸发量均小于常规滴灌,从而可以提高作物的水分利用效率.该研究为极度干旱区作物节水灌溉提供了一定的科学依据.
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| 关 键 词： | 葡萄 根系分区交替滴灌 叶面积指数 耗水规律 含水率 |
| 收稿时间： | 2013-10-12 |
Response of grapes growth by alternate partial root-zone drip irrigation |
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| Wang Weihua,Li Shuqin,Wu Zhongdong.Response of grapes growth by alternate partial root-zone drip irrigation[J].Journal of Drainage and Irrigation Machinery Engineering,2014,32(2):179-184. |
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| Authors: | Wang Weihua Li Shuqin Wu Zhongdong |
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| Institution: | 1.Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, China; 2.Zibo Water Conservancy Exploration & Design Institute, Zibo, Shandong 255049, China; 3.School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, Shandong 255049, China |
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| Abstract: | As the shortage of water resources in the extreme arid region, field experiments of grapes were studied, and alternate partial root zone drip irrigation mode was considered to analyze the grape ecological indicators and water distribution on root zone. The results show that the changes of grape shoot relative growth rate and leaf area index with time can be described by Logistic model. The leaf area indexes of alternate drip irrigation and conventional drip irrigation don't have significant differences analyzed by single factor analysis of variance. That means no significant effect of alternate drip irrigation on the main organ of plant namely the grape leaf exists. Under the joint action of soil evaporation, root absorption, gravitational potential and the water potential gradient, soil moistures of furrow and ridge raise alternately by alternate drip irrigation. And the change of soil moisture can be mainly found in the 0-60 cm soil layer. Results show that, water consumption and soil evaporation of grape irritated by alternate drip irrigation were less than by conventional drip irrigation, and the efficiency of water utilization was improved at the same time. The study provides scientific references for the water saving irrigation in extremely arid areas. |
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| Keywords: | grape alternate partial root-zone drip irrigation leaf area index water consumption rule moisture content |
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