The effect of bulk density, water content and soil type on the diffusion of chloride in soil
The effect of bulk density, water content and soil type on the diffusion of chloride in soil
复制标题
容重、含水量和土壤类型对土壤中氯离子扩散的影响
DOI：
10.1111/j.1365-2389.1989.tb01314.x
复制
发表时间：
1989
影响因子：
4.2
通讯作者：
P. Nye
中科院分区：
文献类型：
--
作者：
H. So;P. Nye
研究了土壤容重、含水量和电位对砂壤土和壤土中C1自扩散和阻抗因子的相对重要性。所使用的土壤容重代表了从新鲜耕作的苗床到压实土壤的一系列条件。土壤阻抗因子的主要控制因子是体积含水量和土壤磷含量，容重的贡献虽小但显著。土壤类型通过阴离子排斥体积的差异、对扩散过程贡献不大的低连通孔隙含水量的差异以及扩散路径的弯曲度等因素影响阻抗因子。
The relative importance of soil bulk density, water content and potential on the self‐diffusion and impedance factors of C1 in a sandy loam and loamy clay were studied. The soil bulk densities used represented a range of conditions from freshly tilled seedbeds to compacted soils. The volumetric water contents and pF were the main factors controlling the soil impedance factors, with bulk density making a small but significant contribution. Soil type affects the impedance factors through differences in anion exclusion volumes, the water contents of poorly connected pores that contribute little to the diffusion process, and tortuosity of the diffusion pathways.