| 旱地麦田水分变化规律分析 |
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| 引用本文： | 张谋草.旱地麦田水分变化规律分析[J].甘肃气象,1995(1). |
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| 作者姓名： | 张谋草 |
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| 作者单位： | 庆阳地区气象局 |
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| 摘 要： | 在分析旱地麦田土壤水分时空变化的基础上，指出土壤水分的时间变化可分为３个时期，即缓慢失墒期、急剧蒸发失墒期和收墒期；垂直变化可分为水分速变层、活跃层、过渡层、稳定少变层。同时还分析了冬小麦生育期间土壤降水蒸散差。
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| 关 键 词： | 麦田水分，变化规律 |
An Analysis of Variation Rule for the Wheat Field from Dryiand |
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| Zhang Moucao.An Analysis of Variation Rule for the Wheat Field from Dryiand[J].Gansu Meteorology,1995(1). |
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| Authors: | Zhang Moucao |
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| Abstract: | The spatial-temporal variations of wheat lield moisture of dryland are analysed,the temporal variations of soil moisture fall roughly into three periods,those are slowly de-creased entropy period,decreased entropy of rtqpidly evd,poration and increased entropy, fourvertical variation layers are divided,i.e. moisture rapidly variation, activity,transition andstability. The difference between rainfall and soil evapotrtqilspiration during growing seasonfor winter wheat are also analysed. |
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| Keywords: | wheat field moisture variation rule |
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