| 土壤──植物系统中水流阻力的变性 |
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| 引用本文： | 黄明斌,邵明安.土壤──植物系统中水流阻力的变性[J].土壤学报,1996,33(2):211-216. |
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| 作者姓名： | 黄明斌 邵明安 |
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| 作者单位： | 1. 中国科学院、水利部西北水土保持所, 712100;1. 中国科学院、水利部西北水土保持所, 712100 |
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| 摘 要： | 本文依据生长箱内模拟试验资料，借助于瞬态流方程，从蒸腾速度的日变化和长期变化两个方面，分析了冬小麦和玉米水流阻力的变性。
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| 关 键 词： | 水流阻力 蒸腾速率 变性 土壤－植物系统 |
| 收稿时间： | 6/1/1995 12:00:00 AM |
VARIABILITY OF HYDRAULIC RESISTANCE IN SOIL-PLANT SYSTEM |
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| Huang Mingbin and Shao Mingan.VARIABILITY OF HYDRAULIC RESISTANCE IN SOIL-PLANT SYSTEM[J].Acta Pedologica Sinica,1996,33(2):211-216. |
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| Authors: | Huang Mingbin and Shao Mingan |
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| Institution: | Northwestern Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources;Northwestern Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources |
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| Abstract: | Based on the simulated experiment data of winter wheat and corn in growth boxes,the variability of hydraulic resistance in the soil-plant system was analysed from aspects of diurnal changes and long-term changes of transpiration rates in this paper.The results indicated that hydraulic resistances in the plant were relatively large at low transpiration rates,decreased as transpiration rates increased and approached a constant value at higher transpiration rates.The effect of effective soil water potantial on hydraulic resistances was also studied. |
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| Keywords: | Hydraulic resistance Transpiration rate Variability |
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