| 摘要: |
| 本文通过田间试验分析了黑龙港地区小麦耗水、及麦田土壤水分变化的规律.结果表明,从冬季到初春,土壤冻融过程中土壤水分基本上无消耗,而春季土壤水分消耗不仅与降水和土壤中原有水分有关,而且与地下水位有关。冬小麦耗水的最大时期是灌浆初期,实际蒸散与可能蒸散的比值能反映这一耗水规律。 |
| 关键词: 实际蒸散 降水 耗水规律 地下水位 黑龙港地区 可能蒸散 地下水补给 冬小麦 土壤水分变化 春季土壤水分 |
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| WATER CONSUMPTION OF WHEAT AND THE CHANGE OF SOIL MOISTURE OF WHEAT FIELD IN HEILUONG-GANG AREA |
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| Abstract: |
| According to the field experiment,water consumption of wheat and the change of soil moisture in wheat field were analysed.The results show that during the winter and early spring,there is very few lose of soil moisture in the process of freezing and melting.In spring,the un- derground water is important for wheat if there is no rain then.The gr- eatest amount of water cousumption of wheat occurs during the early s- tage of mllting.The ratio of the actual evapotraspiration and potential evapotranspiration re... |
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