Additive model of aboveground biomass of larch single-trees related to age, Dbh and height, sensitive to temperature and precipitation in Eurasia
| Autor: | Vladimir А. Usoltsev, Ivan Stepanovich Tsepordey, Viktor Petrovich Chasovskikh, Seyed Omid Reza Shobairi, Anna A. Osmirko |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Biomass (ecology) 010504 meteorology & atmospheric sciences biology Climate change Allometric model biology.organism_classification 010603 evolutionary biology 01 natural sciences Productivity (ecology) Agronomy Environmental science Precipitation Larch Aboveground biomass Additive model 0105 earth and related environmental sciences |
| Zdroj: | Journal of Applied Sciences and Environmental Management. 24:1759-1766 |
| ISSN: | 2659-1502 1119-8362 |
| DOI: | 10.4314/jasem.v24i10.8 |
| Popis: | The first attempt of modeling changes in the aboveground additive component composition of larch (genus Larix spp.) tree biomass, according to the Trans-Eurasian hydrothermal gradients of Eurasia on the database compiled for the structure of harvest biomass in a number of 510 sample trees is fulfilled. The adequacy of the obtained regularities is determined by the level of variability 87-99 % explained by the proposed regression models. For the central territory of European Russia, characterized by the mean annual temperature of January -10 °C and the mean annual precipitation of 400 mm, the increase in temperature by 1°C at the constant level of precipitation causes on Larix spp. trees of the equal age and sizes, the decrease in the aboveground, stem, needle and branches by 0.4, 0.3, 1.4 и 1.3 %, respectively. For the same region, in equal-sized trees, the increase in precipitation by 100 mm at a constant annual temperature in January causes the decrease of the aboveground and stem biomass by 1.2 and 1.7%, respectively, and the increase of needle and branches biomass by 4.0 and 6.0%, respectively. The development of such models for the main forest-forming species of Eurasia will make it possible to predict changes in the productivity of the forest cover of Eurasia in connection with climate change. Keywords: larch trees, genus Larix spp., tree biomass, allometric models |
| Databáze: | OpenAIRE |
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