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气象:2005,31(11):11-14
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径流量干旱指数在河西走廊灌区的应用
(1.中国气象局兰州干旱气象研究所甘肃省干旱气候变化与减灾重点实验室,兰州 730020;2.兰州大学大气科学学院)
Application of Runoff Drought Index to the Hexi Irrigational Area
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中文摘要: 利用径流量干旱指数以及河西地区的酒泉、张掖和武威的春小麦单产资料,探讨干旱指数的等级与去趋势春小麦产量之间的关系。研究结果表明,径流量干旱指数与河西灌溉区春小麦气候产量呈反位相的变化趋势。因此,可利用径流量干旱指数的变化来预测该地区未来春小麦产量变化趋势。
Abstract:Based on the runoff drought index, the spring wheat yield data of Jiuquan, Zhangye and Wuwei in Hexi area, the relationship between the grades of runoff drought index and spring wheat yield without natural growth tendency is studied. The result shows that runoff drought index and spring wheat climate output of Hexi irrigational area appears opposite variation tendency. So, the change tendency of runoff drought index can be used to predict the variation tendency of output of spring wheat of this area.
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基金项目:甘肃省科技厅“十五”公关项目“西北干旱成因及其应用研究”第四子专题资助(GS012-A45-118-04)
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引用文本:
王劲松,冯建英,吴伟,2005.径流量干旱指数在河西走廊灌区的应用[J].气象,31(11):11-14.
,2005.Application of Runoff Drought Index to the Hexi Irrigational Area[J].Meteor Mon,31(11):11-14.