Assessment of indicators for the decomposition rate of forest litter
https://doi.org/10.53374/1993-0135-2023-4-325-328
Abstract
The article is devoted to the assessment of functional indicators of litter decomposition in forest areas. Forest litter influences processes such as the intake of nutrients, the formation of humus, carbon accumulation, and the frequency of ignition. The annual dynamics of litter is characterized by an increase in its quantity by the end of the dry period and is closely related to the rainy season. The main factors affecting the decomposition of litter in forests are temperature and moisture content, as well as various microorganisms. The decomposition of litter in the forest is an important factor in the transport of CO2 from the forest into the atmosphere. It is obvious that this dependence of the CO2 release rate leads to a seasonally dependent estimate of the amount of CO2 released in forests. At the same time, there are averaged model estimates of the decomposition of litter mass in forests per year. The density of wood negatively affects the rate of CO2 release during the decomposition of wood pulp. Taking into account the above, the issue of an average estimate of the rate of CO2 release from litter in forest areas where litter collection and processing measures are not carried out is considered.
Two questions are investigated: (a) the question of the existence of such an optimal functional dependence of the exponential decomposition rate of the litter on its initial mass at which the total remaining mass of the litter reaches a minimum value. The existence of such an optimal velocity is shown, which is directly proportional to the logarithm of the initial mass of the litter. The question of the dependence of the CO2 release rate during the decomposition of the litter on the initial mass of the litter is also investigated. The analysis showed that there is no such dependence in the above optimal mode.
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Review
For citations:
Tahmazov T.M. Assessment of indicators for the decomposition rate of forest litter. Conifers of the boreal area. 2023;41(4):325-328. (In Russ.) https://doi.org/10.53374/1993-0135-2023-4-325-328
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