Thermal properties of Cambisols in mountain regions under different vegetation covers
Katerina Doneva, Milena Kercheva, Emil Dimitrov, Emiliya Velizarova, Maria Glushkova
https://doi.org/10.17221/94/2021-SWRCitation:Doneva K., Kercheva M., Dimitrov E., Velizarova E., Glushkova M. (2022): Thermal properties of Cambisols in mountain regions under different vegetation covers. Soil & Water Res., 17: 113−122.
Soil thermal properties regulate the thermal and water balance and influence the soil temperature distribution. The aim of the current study is to present data on the changes in the thermal properties of Cambisols at different ratios between the water content and the air in the pore space under different vegetation covers in mountain regions. The undisturbed soil samples were taken from the surface soil layers under grassland, deciduous and coniferous forests in three experimental stations of the Forest Research Institute – Gabra in Lozen Mountain, Govedartsi in Rila Mountain and Igralishte in Maleshevska Mountain. The soil thermal conductivity (λ), the thermal diffusivity (α) and the volumetric heat capacity (Cv) were measured with the SH-1 sensor of a KD2Pro device at different matric potentials in laboratory conditions. The thermal conductivity of the investigated soils was also measured with the TR-1 sensor of a KD2Pro device at the transitory soil moisture in field conditions. An increase in the thermal properties with the soil water content was best pronounced for λ and depended inversely on the total porosity. As the total porosity increased with the soil organic carbon content and decreased with the skeleton content, the lowest value of λ was established in the surface horizons of Dystric Cambisols (Humic) in the experimental station in Govedartsi. The soil thermal conductivity increased with the depth under the deciduous forest (Gabra and Igralishte) due to the lower soil organic carbon content (SOC) and the total porosity. There were no such changes in the subsurface horizon under the grassed associations. The increase in the heat capacity with the water content depended on the SOC to less extent. In the horizons with a SOC of less than 1.5%, the changes in the thermal diffusivity over the whole range of wetness were 1.7 times higher than those with a higher SOC.
coniferous forest; deciduous forest; forest soils; grassland; KD2Pro device; soil thermal properties; soil water retention curve
References:Impact factor (Web of Science):
2020: 2.056
Q3 – Water Resources
Q3 – Soil Science
5-Year Impact Factor: 1.927
SCImago Journal Rank (SCOPUS):
New Issue Alert
Join the journal on Facebook!
Ask for email notification.
Similarity Check
All the submitted manuscripts are checked by the CrossRef Similarity Check.
Abstracted/indexed in
AGRICOLA
AGRIS/FAO database
Biological Abstracts
BIOSIS Previews
CAB Abstracts
CNKI
Czech Agricultural and Food Bibliography
DOAJ (Directory of Open Access Journals)
EBSCO – Academic Search Ultimate
Google Scholar
J-GATE
Journal Citation Reports/Science Edition
Current Contents®/Agriculture, Biology, and Environmental Sciences
Science Citation Index Expanded®
SCOPUS
Web of Science®
Licence terms
All content is made freely available for non-commercial purposes, users are allowed to copy and redistribute the material, transform, and build upon the material as long as they cite the source.
Open Access Policy
This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.
Contact
Ing. Markéta Knížková
Executive Editor
phone: + 420 227 010 373
e-mail: swr@cazv.cz
Address
Soil and Water Research
Czech Academy of Agricultural Sciences
Slezská 7, 120 00 Praha 2, Czech Republic