NDLI: Thermal diffusivity of typical Chernozems in the Kamennaya Steppe reserve

Content Provider	Springer Nature Link
Author	Arkhangel’skaya, T. A. Luk’yashchenko, K. I. Tikhonravova, P. I.
Copyright Year	2015
Abstract	The thermal diffusivity of medium-deep light clayey typical chernozems (Voronic Chernozems (Pachic, Clayic)) has been studied, which varies with the soil water content in the ranges of (0.77–2.88) × 10$^{−7}$ m$^{2}$/s for the Ap horizon, (0.82–2.60) × 10$^{−7}$ m$^{2}$/s for the Ad horizon, (0.86–2.58) × 10$^{−7}$ m$^{2}$/s for the A1 horizon, (0.78–2.31) × 10$^{−7}$ m$^{2}$/s for the A1’ horizon, (0.81–2.87) × 10$^{−7}$ m$^{2}$/s for the AB horizon, (1.01–3.33) × 10$^{−7}$ m$^{2}$/s for the B horizon, and (0.98–3.26) × 10$^{−7}$ m$^{2}$/s for the Bca horizon. The dependences of the thermal diffusivity on the water content are described by S-shaped curves with a long gently sloped segment in the region of volumetric water content below 0.15 cm$^{3}$/cm$^{3}$, a region of pronounced increase of thermal diffusivity in the water content range from 0.15 to 0.30–0.35 cm$^{3}$/cm$^{3}$, and the cessation of the increase or even some decrease in the water content range above 0.30–0.35 cm$^{3}$/cm$^{3}$. The approximation of the experimental curves has allowed developing a set of pedotransfer functions, which reflect the differences between the horizons and can be used for the quantification of the thermal diffusivity of the studied horizons at any water content.
Starting Page	177
Ending Page	182
Page Count	6
File Format	PDF
ISSN	10642293
Journal	Eurasian Soil Science
Volume Number	48
Issue Number	2
e-ISSN	1556195X
Language	English
Publisher	Pleiades Publishing
Publisher Date	2015-02-16
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	soil thermal diffusivity pedotransfer functions typical chernozems Voronic Chernozems (Pachic, Clayic) Geotechnical Engineering & Applied Earth Sciences
Content Type	Text
Resource Type	Article
Subject	Earth-Surface Processes Soil Science

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