TEMPERATURE REGIME OF THE SOIL SURFACE  IN DIFFERENT CONIFEROUS-BROADLEAVED FORESTS  (ON THE EXAMPLE OF THE VALUEVSKY MOSCOW FOREST PARK)

А. I. Kuznetsova^1*, V. A. Kuznetsov², E. V. Tikhonova¹, D. N. Tebenkova¹

 

¹Centre for Forest Ecology and Productivity of the RAS

Profsoyuznaya st. 84/32 bldg. 14, Moscow, 117997, Russia

²Lomonosov Moscow State University

Leninskiye Gori 1, Moscow, 119991, Russia

*E-mail: nasta472288813@yandex.ru

Received: 11.08.2024

Revised: 15.09.2024

Accepted: 25.09.2024

 

 

The soil temperature regime is an important regulatory ecosystem function on which many biogeochemical processes depend. This article assesses the variation in the average monthly temperature of the surface organic soil horizon and litter stock in the Spruce-broadleaved and Lime-birch forest types of the Valuev Moscow Forest Park, taking into account intra- and interbiogeocenotic variability for 2019-2022. In all studied summer periods, the litter temperature of the oak-spruce forest is lower than that of the birch-linden forest. The variability of the litter temperature in winter depends on the depth of the snow cover, the onset of stable snow cover and litter reserves. A close negative relationship was found between the litter reserves and its temperature in summer, and a positive relationship in winter. In the presence of a thick snow cover, the litter temperature of the undercrown spaces is higher than the litter temperature of the window, which is characterized by low reserves. Further studies on the effect of woody vegetation on the characteristics of the soil surface temperature regime can be used to assess the rate of litter decomposition and greenhouse gas emission.

 Keywords: quality of litter, mosaic elements, gap, undercrown

 

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