Additive model of Larix sp. forest stand biomass sensitive to temperature and precipitation variables in Eurasia

Usoltsev, Vladimir А.; Kovyazin, V.F.; Osmirko, Anna A.; Tsepordey, Ivan Stepanovich; Часовских, В. П.

doi:10.1088/1755-1315/316/1/012074

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…Genus Larix spp. as an unique deciduous tree in the evergreen world (Gower & Richards, 1990) is consistent with birches, spruces and firs on the reaction of biomass and NPP to temperature, but due to precipitation, the biomass of all its components decreases (Usoltsev et al, 2019d;Usoltsev et al, 2020). Thus, for larch biomass and NPP, limiting factors are lack of heat and excess of moisture.…”

Section: Discussionmentioning

confidence: 77%

Forest stand biomass and NPP models sensitive to winter tempera-ture and annual precipitation for Betula spp. in Eurasia

Usoltsev

Żukow

Tsepordey

et al. 2020

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Forest ecosystems, as sinks of atmospheric carbon, play an important role in reducing CO 2 emissions and preventing annual temperatures from rising. On the other hand, climate change entails changes in the structure and functions of all the biota, including forest cover. Therefore, we attempted to model Betula spp. ecosystem biomass and annual net primary production (NPP) (t ha-1) using the data from 650 forest stands for biomass, 245 for NPP and biomass, as well as climate data on the Trans-Eurasian hydrothermal gradients. The model involves regional peculiarities of age and morphology of the forests. It is found that the reaction of birch biomass and NPP structure on temperature and precipitation corresponds to the principle of limiting factors by Liebig-Shelford but in different proportions for different species. Since the minimum values of biomass and NPP occur in regions with minimum precipitation and minimum temperature, these two factors are limiting in terms of biomass and NPP of birches. The same phenomenon is typical for firs, partly typical for spruces and very differ for larches and pines. The development of such models for basic forestforming species grown in Eurasia will give possibility to predict any changes in the biological productivity of forest cover of Eurasia in relation to climate change.

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Section: Discussionmentioning

confidence: 77%

Forest stand biomass and NPP models sensitive to winter tempera-ture and annual precipitation for Betula spp. in Eurasia

Usoltsev

Żukow

Tsepordey

et al. 2020

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“…Finally, the fourth type of investigated pattern was detected on the example of larch (Larix spp.) forests of Eurasia: the unified regularity to all the biomass components of wood story is the following: increase with raising temperature in the range from -40°C to 0°C at invariable precipitation, but decrease with raising precipitation in the range from 200 to 900 mm at constant temperature (Usoltsev et al, 2019b).…”

Section: Discussionmentioning

confidence: 99%

Forest stand biomass of Picea spp.: an additive model that may be related to climate and civilisational changes

Usoltsev

Piernik

Osmirko

et al. 2019

Bulletin of Geography. Socio-Economic Series

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Since ancient times, climate change has largely determined the fate of human civilisation, which was related mainly to changes in the structure and habitats of forest cover. In the context of current climate change, one must know the capabilities of forests to stabilise the climate by increasing biomass and carbon-depositing abilities. For this purpose, the authors compiled a database of harvest biomass (t/ha) in 900 spruce (Picea spp.) sample plots in the Eurasian area and used the methodology of multivariate regression analysis. The first attempt at modelling changes in the biomass additive component composition has been completed, according to the Trans-Eurasian hydrothermal gradients. It is found that the biomass of all components increases with the increase in the mean January temperature, regardless of mean annual precipitation. In warm zonal belts with increasing precipitation, the biomass of most of the components increases. In the process of transitioning from a warm zone to a cold one, the dependence of all biomass components upon precipitation is levelled, and at a mean January temperature of ˗30°C it becomes a weak negative trend. With an increase in temperature of 1°C in different ecoregions characterised by different values of temperature and precipitation, there is a general pattern of decrease in all biomass components. With an increase in precipitation of 100 mm in different ecoregions characterised by different values of temperature and precipitation, most of the components of biomass increase in warm zonal belts, and decrease in cold ones. 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 due to climate change.

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“…The minimum and maximum values of biomass will be determined, all other things being equal, by the corresponding limiting and optimal combinations of climatic variables. Such a pattern is described by a propeller-shaped surface, the analytical description of which includes not only temperature and precipitation, but also synergism [ln(Tm+50)]•(lnPRm) (Usoltsev et al 2018a, Usoltsev et al 2019a, Usoltsev et al 2019b, Usoltsev et al 2019c).…”

Section: Methodsmentioning

confidence: 99%

“…Due to current climate changes, priority is given to changing the biomass and NPP of forest ecosystems under the influence of average temperatures and precipitation (Lieth 1974). Similar studies are performed at both a regional (Forrester et al 2017, Fu et al 2017, Zeng et al 2017) and transcontinental (Usoltsev et al 2018a, Usoltsev et al 2019a, Usoltsev et al 2019b, Usoltsev et al 2019c level. Studies of forest stand biomass at the transcontinental level, performed for four coniferous species of Eurasia, showed that changes in their biomass due to temperatures and precipitation are species-specific, i.e.…”

Section: Introductionmentioning

confidence: 98%

A Comparative Pattern for Populus spp. and Betula spp. Stand Biomass in Eurasian Climate Gradients

Shobairi

Lin²,

Усольцев

et al. 2022

Croat. j. for. eng. (Online)

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Based on the generated database of 413 and 490 plots of biomass of Populus spp. and Betula spp. in Eurasia, statistically significant changes in the structure of forest stand biomass were found with shifts in January temperatures and average annual precipitation. When analyzing harvest data, the propeller-shaped biomass patterns in the gradients of average annual precipitation and average January temperatures are obtained, which are common for both deciduous species. Correspondingly, Populus and Betula forests show a regularity common to the biomass components: in the cold zones the precipitation increase leads to the increase of biomass, and in the warm ones to their decrease. In wet areas, the increase of temperature causes the decrease of biomass, and in dry areas, it causes their increase. In accordance with the law of the limiting factor by Liebig-Shelford, it is shown that both an decrease in temperature in dry conditions and a increase in precipitation in a warm climate lead to a decrease in the biomass of trees.

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Additive model of Larix sp. forest stand biomass sensitive to temperature and precipitation variables in Eurasia

Cited by 3 publications

References 7 publications

Forest stand biomass and NPP models sensitive to winter tempera-ture and annual precipitation for Betula spp. in Eurasia

Forest stand biomass and NPP models sensitive to winter tempera-ture and annual precipitation for Betula spp. in Eurasia

Forest stand biomass of Picea spp.: an additive model that may be related to climate and civilisational changes

A Comparative Pattern for Populus spp. and Betula spp. Stand Biomass in Eurasian Climate Gradients

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