| 甘肃陇东粘黑垆土区冬小麦土壤水分利用特征 |
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| 引用本文： | 李小刚,张仁陟.甘肃陇东粘黑垆土区冬小麦土壤水分利用特征[J].土壤通报,2000,31(1):17-20. |
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| 作者姓名： | 李小刚 张仁陟 |
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| 作者单位： | 甘肃农业大学资源环境系,甘肃兰州 730070 |
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| 摘 要： | 连续三年进行田间水分动态监测.结果表明,冬麦耗水量主要受生育期降水的影响;不同年份间对土壤水分的消耗量差别不大.对0～150cm土层水分的利用系数(WUC)为0.543～0.799,在中下部土层中有相当数量的水分是不能够被冬小麦利用的,其WUC降低到0.2以下.
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| 关 键 词： | 粘性黑垆土 冬小麦 土壤水分利用特征 水分有效性 |
| 文章编号： | 0564-3945(2000)01-0017-04 |
| 修稿时间： | 1998年7月24日 |
Characteristics of soil moisture in the clay Heilu soil area of eastern Gansu region relating to the water available for winter wheat |
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| Abstract: | The dynamics of soil moisture had been monitored for 3 consecutive years in combination with fertilization experiments with winter wheat in the clay Heilu soil area of eastern Gansu region.Evapotranspiration of the winter wheat was determined by rainfall quantity during growth period.However,The exhaustion of soil water did no vary significantly.The maximal of soil water used by the winter wheat was 54.3 to 79.9% of the available moisture capacity in the 0-10cm soil layer. |
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| Keywords: | Heilu soil Winter wheat Soil moisture Soil water availability |
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