MATEC Web Conf.
Volume 170, 2018International Science Conference SPbWOSCE-2017 “Business Technologies for Sustainable Urban Development”
|Number of page(s)||7|
|Section||Modeling and Planning in Sustainable Urban Development|
|Published online||13 June 2018|
Geoelectrical Survey of Active Layer Depth in Urban and Mature Environments of Yamal Region
St.Petersburg State University, Universitetskaya naberezhnaya, 7/9, St. Petersburg, 199034, Russia
2 Politecnoco di Milano, 32 Piazza Leonardo da Vinci, Milano, 20133, Italian Republic
3 Saint Petersburg State University of Architecture and Civil Engineering, Vtoraya Krasnoarmeiskaya str. 4. St. Petersburg, 190005, Russia
* Corresponding author: firstname.lastname@example.org
Active layer thickness and the depth of the permafrost are the basic features of the soil cover of the Arctic region. Urban ecosystems are characterized by disjunctive character of soil cover. Identification of separate soil bodies within the urban ecosystems, their spatial limitation and vertical stratification should be performed for adequate ecological assessment of urban territories. Methods of field electrophysics, which do not lead to any mechanical disturbances of soil cover, should be preferably used for both urban and natural environments. Studied soil profiles revealed significant differences in profile distribution of electrical resistivity values and active layer depths. Predominance of sand fraction in soil of Salekhard site (Spodic Cryosol) determines higher rates of thawing process compared to soil from natural site (Aquiturbic Cryosol), where clay is predominant fraction. Both soil profiles and their electrical resistivity curves are significantly affected by natural cryoturbation processes. However, vertical profile of electrical resistivity value in urban soil is more complicated and has a number of fluctuations due to higher rates of ground mixing, mechanical pressure and high amount of artefacts.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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