Laser-based 3D microscopic gauging of soil aggregate coating thickness and volume
Laser-based 3D microscopic gauging of soil aggregate coating thickness and volume
复制标题
基于激光的 3D 显微测量土壤骨料涂层厚度和体积
DOI:
10.1016/j.still.2020.104715
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发表时间:
2020
影响因子:
6.5
通讯作者:
Sobotkova
中科院分区:
文献类型:
--
作者:
Beck-Broichsitter;Gerriets;Sobotkova
In structured soils, clay-organic coatings are spatially distributed along macropore surfaces. Information on thickness and volume of coating material is essential for macropore-matrix mass exchange of water and solutes. However, their determination is difficult and fraught with uncertainty due to irregular shapes of macropore surfaces. The objective of this study was to test the use of a three-dimensional (3D) confocal laser scanning microscope for gauging soil macropore coatings. For this test, coating material was manually separated from the surface of intact soil clods (5 cm edge length) sampled from Bt horizons (with illuvial clay) of till-derived and loess-derived Haplic Luvisols. The resulting coating thicknesses ranged between approx. 0.1 and 0.5 mm and volumes between 0.057 and 2.9 mm3with mean densities of 1.96 g cm−3for loess-derived and 2.67 g cm−3for till-derived coatings. The 3D laser microscopic method yielded data based on micro-topographic information. The key benefits of the 3D confocal laser scanning microscope are the information on the mm-scale spatial distribution of coating thickness and bulk density. These additional parameters of the clod surface or aggregate micro-topography can be useful for improved quantification of accessibility of sorption surfaces and for describing macropore-matrix mass transfer of reactive solutes.
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影响因子:
2.5
作者:
通讯作者:
--
影响因子:
2.8
作者:
Beck-Broichsitter;V.J.M.N.L
通讯作者:
V.J.M.N.L
影响因子:
6.5
作者:
S. Beck-Broichsitter;Marisa R. Gerriets;H. Gerke;M. Sobotková;J. Dusek;R. Dohrmann;R. Horn
通讯作者:
S. Beck-Broichsitter;Marisa R. Gerriets;H. Gerke;M. Sobotková;J. Dusek;R. Dohrmann;R. Horn
影响因子:
3.2
作者:
J. Dusek;M. Dohnal;T. Vogel;A. Marx;J. Barth
通讯作者:
J. Barth
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
H. Keck;B. Strobel;J. Gustafsson;J. Koestel
通讯作者:
J. Koestel