Insight into influence of roots on hydrothermal properties of alpine meadow in Tibetan Plateau

Article Soil Science

Thermal properties of Cambisols in mountain regions under different vegetation covers

Katerina Doneva et al.

Summary: Soil thermal properties play an important role in regulating heat and water balance in the soil and influencing soil temperature distribution. This study investigated the changes in thermal properties of Cambisols under different vegetation covers in mountain regions. The results showed that soil thermal conductivity increased with soil water content, but inversely correlated with total porosity. Soil thermal diffusivity increased more significantly in layers with lower soil organic carbon content. The study also found that soil thermal conductivity increased with depth under deciduous forests, while no such changes were observed under grasslands. The heat capacity showed a smaller correlation with soil organic carbon content.

SOIL AND WATER RESEARCH (2022)

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Article Agronomy

Root-induced alterations in soil hydrothermal properties in alpine meadows of the Qinghai-Tibet Plateau

Youqi Su et al.

Summary: By studying the influence of plant roots on soil hydrothermal properties in the Qinghai-Tibet Plateau, it was found that roots enhance water-holding capacity while reducing soil hydraulic conductivity, with the thermal conductivity of rhizosphere soils lower than bulk soil. Current soil hydrothermal properties models that do not consider root effects tend to overestimate soil hydraulic conductivity and thermal conductivity in rhizosphere soils.

RHIZOSPHERE (2021)

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Article Soil Science