Microtomographic analysis of pore space in a virgin soddy-podzolic soil
- Authors: Skvortsova E.B.1, Rozhkov V.A.1, Abrosimov K.N.1, Romanenko K.A.1, Khokhlov S.F.1, Khaidapova D.D.2, Klyueva V.V.1, Yudina A.V.1
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Affiliations:
- Dokuchaev Soil Science Institute
- Lomonosov Moscow State University
- Issue: Vol 49, No 11 (2016)
- Pages: 1250-1258
- Section: Soil Physics
- URL: https://journals.rcsi.science/1064-2293/article/view/223568
- DOI: https://doi.org/10.1134/S1064229316110090
- ID: 223568
Cite item
Abstract
The method of X-ray microtomography was applied to study pore space of a virgin soddy-podzolic soil at the natural soil water content. The morphometric parameters of the pores of more than 100 μm in diameter were determined in the vertically oriented undisturbed soil monoliths (d = 3 cm, h = 3–4 cm) from the genetic horizons of the most differentiated part of the soil profile (the AY, AEL, EL, BEL, BT1, and BТ2 horizons). A tendency for the horizontal orientation of these pores was found in all the horizons, except for the humus (AY) horizon. Isolated vesicular pores of different sizes were abundant in the eluvial part of the profile. Numerous recent and relict phytogenic channels were found in the intraped mass of the BT2 horizon. Differently directed interfaces of structural units in the soil horizons were visualized. Cluster analysis was applied to estimate differences between the genetic horizons with respect to their textures, aggregate sizes, and shapes of pores as seen in vertical two-dimensional X-ray images.
About the authors
E. B. Skvortsova
Dokuchaev Soil Science Institute
Author for correspondence.
Email: eskvora@mail.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
V. A. Rozhkov
Dokuchaev Soil Science Institute
Email: eskvora@mail.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
K. N. Abrosimov
Dokuchaev Soil Science Institute
Email: eskvora@mail.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
K. A. Romanenko
Dokuchaev Soil Science Institute
Email: eskvora@mail.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
S. F. Khokhlov
Dokuchaev Soil Science Institute
Email: eskvora@mail.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
D. D. Khaidapova
Lomonosov Moscow State University
Email: eskvora@mail.ru
Russian Federation, Leninskie gory, Moscow, 119991
V. V. Klyueva
Dokuchaev Soil Science Institute
Email: eskvora@mail.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017
A. V. Yudina
Dokuchaev Soil Science Institute
Email: eskvora@mail.ru
Russian Federation, per. Pyzhevskii 7, Moscow, 119017