| 沙地果树节水渗灌技术的试验研究 |
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| 引用本文： | 荔克让,刘新民.沙地果树节水渗灌技术的试验研究[J].中国沙漠,1997,17(4):447-452. |
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| 作者姓名： | 荔克让 刘新民 |
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| 作者单位： | 中国科学院兰州沙漠研究所 |
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| 基金项目： | 甘肃省计委资助,兰州分院青年择优基金 |
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| 摘 要： | 果树渗灌是灌溉水通过特殊的透性材料持续缓慢地渗入并浸润土壤，借助土壤毛管水运动原理向果树根系供水。干旱地区沙地渗灌能有效地减少地表蒸发、避免无效渗漏造成的水分损失，提高灌溉水利用率，从而达到节水的目的。在沙地果园采用节水渗灌技术，比传统的大水漫灌和沟灌方式分别节水８３．１％和６３．１％。
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| 关 键 词： | 沙地渗灌 渗坛 灌溉定额 土壤含水量 消减系数 |
EXPERIMENTAL STUDY ON WATER EFFICIENT IRRIGATION TECHNIQUES OF FRUIT TREE IN SANDY LAND |
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| LI Ke,rang \ LIU Xin,min\ ZhAO Ai,guo\ PU Jin,chun\.EXPERIMENTAL STUDY ON WATER EFFICIENT IRRIGATION TECHNIQUES OF FRUIT TREE IN SANDY LAND[J].Journal of Desert Research,1997,17(4):447-452. |
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| Authors: | LI Ke rang \ LIU Xin min\ ZhAO Ai guo\ PU Jin chun\ |
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| Abstract: | The principle of infiltrating irrigation is what water percolate through soil out of a particular seepy material and provided to roots by capillary movement. When adopting the method in arid sandy land, it is possible to reduce evaporation, avoid unavailable percolating water, and then arrive at the aim of saving water. We have conducted an experiment in fruit fields with infiltrating irrigation technique. The results show that the consumption of water under infiltrating irrigation is 83 1% of water use under flooding irrigation and 63 1% under furrow irrigation. |
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| Keywords: | Sandy land\ Infiltrating irrigation \ Earthen jar\ Duty of water\ Soil content Decending coefficient |
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