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| 灌水量对半干旱区土壤水盐分布特征及冬小麦产量的影响 | |
| 引用本文： | 巨龙,王全九,王琳芳,史晓楠.灌水量对半干旱区土壤水盐分布特征及冬小麦产量的影响[J].农业工程学报,2007,23(1):86-90. |
| 作者姓名： | 巨龙 王全九 王琳芳 史晓楠 |
| 作者单位： | 1. 西安理工大学水资源研究所,西安,710048;黄土高原土壤侵蚀与旱地农业国家重点实验室,杨凌,712100 2. 西安理工大学水资源研究所,西安,710048 3. 中国农业大学水利与土木工程学院,北京,100083 |
| 基金项目： | 国家自然科学基金;中国科学院"百人计划";高等学校博士学科点专项科研项目 |
| 摘 要： | 通过冬小麦小区灌溉试验，研究了灌水量对水分利用效率、土壤水盐分布及冬小麦产量的影响。结果表明灌溉水量决定土壤水分含量高低，随着灌水量的增加，边际土壤含水率先增大后减小，水分利用效率递减，土壤表层含盐量先减小后增加。当表层土壤的含盐量在0.07%~0.09%范围内，产量随着表土含盐量的增加先增大后减小。综合节水、抑盐、高产等因素得出当地淡水灌溉的最优灌水量。 |
| 关 键 词： | 冬小麦 灌溉定额 水分利用效率 水盐运移 |
| 文章编号： | 1002-6819(2007)1-0086-05 |
| 收稿时间： | 2006/2/14 0:00:00 |
| 修稿时间： | 2006-02-14 |
Effects of irrigation amounts on yield of winter wheat and distribution characteristics of soil water-salt in semi-arid region |
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| Ju Long,Wang Quanjiu,Wang Linfang and Shi Xiaonan.Effects of irrigation amounts on yield of winter wheat and distribution characteristics of soil water-salt in semi-arid region[J].Transactions of the Chinese Society of Agricultural Engineering,2007,23(1):86-90. | |
| Authors: | Ju Long Wang Quanjiu Wang Linfang and Shi Xiaonan |
| Institution: | Institute of Water Resources, Xi'an university of Technology, Xi'an 710048, China;Institute of Water Resources, Xi'an university of Technology, Xi'an 710048, China;State Key Laboratory of Soil Erosion and Dryland Farming, Yangling 712100, China;Institute of Water Resources, Xi'an university of Technology, Xi'an 710048, China;College of Hydraulic and Civil Engineering, China Agricultural University, Beijing 10083, China |
| Abstract: | Plot experiment of winter wheat irrigation was carried out to analyze the effects of irrigation amounts on water use efficiency, salt-water distribution and yield of winter wheat. Results show that the soil water content depends on irrigation amount. Marginal soil water content increases first then decreases, water use efficiency decreases, and the salt content of surface soil increases first then decreases with the increase of irrigation amount. Yields of winter wheat decrease first then increase as the surface soil salt content increases from 0.07% to 0.09%. Considering water-saving, salt-limiting and high-producing, the optimum irrigation amount for Nanpi experiment station in Hebei Province was obtained. |
| Keywords: | winter wheat irrigation amount water use efficiency water-salt transport |
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