| 细砂质紧砂土水盐上升运行的初步研究 |
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| 引用本文： | 夏家淇,汪仁真. 细砂质紧砂土水盐上升运行的初步研究[J]. 土壤学报, 1964, 12(2): 206-212 |
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| 作者姓名： | 夏家淇 汪仁真 |
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| 作者单位： | 中国科学院土壤研究所;中国科学院土壤研究所 |
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| 摘 要： | 土壤水盐运行规律的研究,特别是水盐上升运行,对于防治土壤盐漬化具有极重要的意义。土壤水盐上升运行受到土壤的质地、结构、蒸发、地下水以及土壤湿度、温度和盐分浓度三种梯度的影响。华北平原的土壤不仅在质地上有水平分布和剖面层次的差异,而且土壤类型和盐漬化程度也各有不同,自然和人为因素也很复杂。
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A PREUMINARY STUDY ON THE UPWARD MOVEMENT OF WATER AND SALT IN FINE SANDY SOIL |
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| HSIA CHIA-CHI and WANG GEN-CHEN. A PREUMINARY STUDY ON THE UPWARD MOVEMENT OF WATER AND SALT IN FINE SANDY SOIL[J]. Acta Pedologica Sinica, 1964, 12(2): 206-212 |
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| Authors: | HSIA CHIA-CHI and WANG GEN-CHEN |
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| Affiliation: | Institute of Soil Science, Academia Sinica;Institute of Soil Science, Academia Sinica |
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| Abstract: | From a glass-tube experiment on air-dried soil column the following results were observed: (1) The CaCl2 solution moved upward from the "round water table" to a height of 108.5 cm in 136 days, (2) within the supported capillary water zone, the water front moved rapidly and the rate of water flow was great, but in the soil above that zone the movement of water front was slowed down and the rate of water flow decreased, (3) all kinds of soil water in liquid-phase (including film water) moved with salts, which caused the rate of soil water flow and soil evaporation to decrease. |
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