Calculation of Hydraulic Conductivities of Soils from Texture and Organic matter Content
Calculation of Hydraulic Conductivities of Soils from Texture and Organic matter Content
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根据质地和有机质含量计算土壤的水力传导率
DOI：
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
G. W. Bloemen
中科院分区：
文献类型：
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作者：
G. W. Bloemen
从土壤的质地和有机质含量出发，给出了计算毛细管电导率的简便公式。通过这种方法，只要对颗粒组成和腐殖质含量进行充分的分析，就可以计算任何土壤的电导率函数。特别是在实际用途中，这种计算结果的快速可用性比耗时的直接测量或根据水分保持曲线评估常数的计算具有很大的优势。为了提高该方法的实际意义，从实用的角度考虑了孔径迟滞对计算电导率函数的影响。电导率函数的一些单层土壤类型在荷兰给出。
It is demonstrated how the values of the three constants in a convenient formula for the calculation capillary conductivities can be evaluated from texture and organic matter content of a soil. In this way it is possible to calculate the conductivity function of any soil provided that an adequate analysis of granular composition and humus content analysis is available. Particularly for practical purposes the quick availability of the results of this calculation is of great advantage over time consuming direct measurement or calculation with constants evaluated from moisture retention curves. To increase the practical significance of the method the effect of pore size hysteresis on the calculated conductivity functions is accounted for in a pragmatical way. Conductivity functions for a number of single-layered soil types in the Netherlands are given.
In a subsequent paper it will be shown how the discussed method is put into practice in a computation of capillary rise from the groundwater table in multi-layered soil profiles.