Comparison between grain-size analyses using laser diffraction and sedimentation methods
Comparison between grain-size analyses using laser diffraction and sedimentation methods
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DOI：
10.1016/j.biosystemseng.2010.03.013
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发表时间：
2010-06-01
影响因子：
5.1
通讯作者：
Mirabile, S.
中科院分区：
文献类型：
--
作者：
Di Stefano, C.;Ferro, V.;Mirabile, S.
采用激光衍射法（LDM）和筛比重计法（SHM）对西西里盆地不同质地分类的228个土壤样品进行了比较。分析表明，SHM法测得的砂粒含量与LDM法测得的砂粒含量基本相等，而LDM法测得的粘土含量低于SHM法测得的粘土含量。提出了一套将LDM结果转化为SHM结果的方程。还研究了粘土的LDM测量对淤泥+极细砂颗粒（粒径范围为0.002 mm至0.1 mm）的估计百分比的影响，这有助于估计土壤的可蚀性。(C) 2010我同意。Elsevier Ltd.出版。版权所有。
A comparison between laser diffraction method (LDM) and the sieve-hydrometer method (SHM) was carried out for 228 soil samples representing a different texture classification sampled in a Sicilian basin. The analysis demonstrated that the sand content measured by SHM can be assumed equal to that determined by LDM technique, while the clay fraction measured by LDM was lower than that measured by the SHM. A set of equations to transform LDM results to SHM results was proposed. The influence of the LDM measurements of clay on the estimated percentage of silt + very fine sand particles (particle diameter ranging from 0.002 mm to 0.1 mm), which is useful for estimating soil erodibility, was also studied. (C) 2010 IAgrE. Published by Elsevier Ltd. All rights reserved.