Аналіз змін фітомаси деревостанів у лісових насадженнях міста Любліна з використанням моделі FORKOME

Autor: G. Kozak, T. Parpan, I. Kozak, P. Kotsyuba, A. Stempen
Rok vydání: 2015
Předmět:
Zdroj: Наукові праці Лісівничої академії наук України. :70-75
ISSN: 2616-5015
1991-606X
DOI: 10.15421/411509
Popis: The study was conducted on the sample of stands in border of current limits of the Lublin city. The biomass accumulation was analyzed on the research areas of 25 x 25 meters established in oak (2 plots), pine stands (3 plots), as well as hornbeam, larch and birch stands. There were predicted possible changes in stand biomass with the use of the FORKOME model within 20 years (until 2035). The FORKOME model conducts simulation of reproductive processes, growth and mortality of trees during every year, as well as the influence of additional environmental and ecological factors upon the tree stand. Among the factors considered are annual sum of precipitation, annual sum of temperatures effective DGD (degree days) for vegetation, nitrogen contents in the soil, degree of shading of the area by tree crowns. All research plots in the model are analyzed on the basis of the above-mentioned blocks, considering the actual increase of DBH during the year of simulation. It means an optimal increase of DBH, i.e. an increase of tree diameter in optimal conditions of environment. Hence, DBH is the fundamental parameter of trees on which the model FORKOME is based. This model was already used in scientific projects in various regions of Poland, Ukraine and Sweden. Model FORKOME also contains continuously developed presentation layer, which allows for 3D visualization of components of the forest stands in town. The article shows an innovative method of analyzing changes in biomass of forest stands in Lublin using FORKOME model. The data on the current biomass accumulation in oak and pine stands were tested according to the age and conditions of stand habitats. The highest biomass accumulation estimated in oak stands, it shows a tendency of increase in their biomass by 2035. The example of pine stands predicted more substantial increase in biomass in the best habitat conditions. Birch, hornbeam and larch stands analyzed during the forecast will be replaced by oak stands. The results of the FORKOME model simulations conducted by 2035 can be used for further calculations of accumulated carbon in the forests within the territory of city of Lublin. The diameter and height of trees, and the total biomass, including fractions (trunks, branches, leaves, needles) were estimated in actual state and in prediction. The results of research are perspective not only for scientific but also for practical aspects.
Databáze: OpenAIRE
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