| 河西绿洲灌区小麦灌溉预报模型的研究 |
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| 引用本文： | 杨杰,黄鹏,魏邦龙.河西绿洲灌区小麦灌溉预报模型的研究[J].甘肃农业大学学报,2007,42(4):118-122. |
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| 作者姓名： | 杨杰 黄鹏 魏邦龙 |
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| 作者单位： | 1. 甘肃农业大学农学院,甘肃,兰州,730070
2. 兰州城市学院计算机科学教育系,甘肃,兰州,730070 |
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| 基金项目： | 教育部“春晖计划”科研合作项目——“甘肃河西地区精确灌溉技术决策系统的研制”(Z2004-1-62043);;甘肃省教育厅科研项目——“基于GIS的河西地区精确灌溉决策系统研制”(0410-03). |
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| 摘 要： | 采用土壤含水量的平衡计算模型和土壤水分指数,结合气象资料,对河西绿洲灌区小麦实际蒸散量和农田土壤水分动态变化进行了模拟分析.结果表明,实际观测值与Penman-Monteith公式修正计算值之间误差比较小,水面蒸发量与作物蒸散量的数学模拟之间的线性关系很明显,相关性很高.因此,该模型可以用于灌水时间的预报.
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| 关 键 词： | 灌溉预报模型 小麦 蒸散量 土壤水分 河西绿洲 |
| 文章编号： | 1003-4315（2007）04-0118-05 |
| 修稿时间： | 2006-12-26 |
Research on irrigation forecast model of wheat in the Hexi Oasis irrigation district |
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| YANG Jie,HUANG Peng,WEI Bang-long.Research on irrigation forecast model of wheat in the Hexi Oasis irrigation district[J].Journal of Gansu Agricultural University,2007,42(4):118-122. |
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| Authors: | YANG Jie HUANG Peng WEI Bang-long |
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| Institution: | 1.College of Agronomy;Gansu Agricultural Uiversity;Lanzhou 730070;China;2.Department of Computer Science Education;Lanzhou City College;China |
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| Abstract: | In light of the demand for current water-saving irrigation and precision irrigation,the wheat actual evapotranspiration and dynamics change of soil moisture of irrigation districts in the Hexi Oasis were simulated and analyzed by means of balance calculation model of soil moisture,and the forecast method of soil dry and wet conditions in the field by soil water index combined with local meteorological data in history,aiming at obtaining appropriate irrigation time and its amount of the district.The results ... |
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| Keywords: | irrigation forecast model wheat evapotranspiration soil moisture Hexi Oasis |
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