Climatically Caused Territorial Changes in the Phytomass of Forest-Forming Tree Species of Eurasia and Their Forecasting

Усольцев, В. А.; Tsepordey, Ivan Stepanovich

doi:10.15372/sjfs20210607

Cited by 4 publications

(7 citation statements)

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“…Каждую пробную площадь, на которой проводилась оценка биомассы древостоев, по известным координатам наносили на карты-схемы территориально распределенных климатических показателей: средней январской температуры и среднегодовых осадков [151]. Полученные карты-схемы с нанесенным на них положением пробных площадей были показаны ранее [49] и здесь не приводятся.…”

Section: материалы и методы исследованияunclassified

“…Впрочем, есть мнение, альтернативное принципу единственного лимитирующего фактора. Проводя аналогию с распределением ресурсов в эко-тора, и биомасса лимитируется избытком осадков; во влагообеспеченных регионах биомасса лимитируется недостатком тепла, а по мере перехода во влагодефицитные регионы происходит смена лимитирующего фактора, и биомасса ограничивается избытком тепла [48,49,51,138,139].…”

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Отношение Подземной Биомассы К Надземной Лесообразующих Видов Евразии В Градиентах Температур И Осадков

Усольцев¹,

Цепордей²

2022

Biosfera

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Due to the observed climatic shifts, the problem of correct estimates of the carbon sequestration capacity of forests and its possible temporal dynamics is being actualized. In plant ecology, tree root systems are the least studied. The purpose of this study was (a) to investigate, based on measurements carried out at 1782 sample plots, whether the effect of the law of the limiting factor is manifested when modeling the ratio of the belowground to the aboveground live biomass, i.e. the root-to-shoot ratio (R:S) of five forest-forming species in Eurasia as it relates to the geographically determined gradients of temperature and precipitation; (b) to show to what extent the climate-dependent models of R:S dependence on temperature and precipitation may be used to predict changes in R:S in temporal gradients based on the principle of space-for-time substitution and (c) to obtain the mean R:S values for forest-forming tree species (genuses) of Eurasia and perform their ranking. It has been established that, in cold regions, R:S increases with increasing precipitation, whereas upon transition to warm regions, one limiting factor (heat deficit) is replaced by another one (heat excess), and R:S dependence on precipitation changes to the opposite trend. In humid regions, R:S decreases with increasing temperature, whereas upon transition to dry conditions, one limiting factor (moisture excess) is replaced by another one (moisture deficit), and R:S begins to increase. The comparison of the above patterns with previously published ones, which relate to the aboveground biomass, suggest that they are directly opposite, i.e., the factors that limit the amount of the aboveground biomass are stimulatory for the R:S ratio, and vice versa. Our estimates of the typical R:S values for 24 Eurasian tree species range from 0.11 for dipterocarpus in Malaysia to 0.37 for ash in Europe.

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Section: материалы и методы исследованияunclassified

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Отношение Подземной Биомассы К Надземной Лесообразующих Видов Евразии В Градиентах Температур И Осадков

Усольцев¹,

Цепордей²

2022

Biosfera

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“…Usoltsev V.A., Usoltseva Yu.V., Zalesov S.V. [2] formed a database of birch phytomass based on recursive equations for 29 regions of Northern Eurasia.…”

Section: Introductionmentioning

confidence: 99%

Monitoring the budget of green phytomass of birch forest stands, taking into account the structure by diameter

Vais

Andronova

Popova

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The drooping birch (Betula pendula) occupies a significant part of the territory of the forest fund, and in the forest-steppe zone it often performs the function of a dominant. Silver birch is one of the most intensively synthesizing aboveground phytomass tree species of the boreal zone. The purpose of the research is to identify patterns in the distribution of the phytomass of leaf blades of birch forest stands, taking into account regional standards, and to compare the results with the general tables of biological productivity. As a result, it was found that the tables of biological productivity for all categories of plantations (complete, modal) overestimate information about the final leaf weight. The closest results were obtained for modal forest stands in Siberia. The role of the structure in determining the phytomass of leaves can be from 5 to 35%, taking into account the distribution of trees by diameter. When assessing the phytomass of birch stands, it is necessary to strive to use local tables of the weight of individual tree fractions and distribution series that correspond to the maximum extent to the structure of these stands.

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“…Significant studies on the study of the phytomass of birch plantations of Northern Eurasia were carried out by V.A. Usoltsev and his co-authors [1][2][3][4]. The article [1] presents a database of recursive equations that reflect the change in birch biomass in 29 regions of Northern Eurasia.…”

Section: Introductionmentioning

confidence: 99%

“…Usoltsev and his co-authors [1][2][3][4]. The article [1] presents a database of recursive equations that reflect the change in birch biomass in 29 regions of Northern Eurasia. A.V.…”

Section: Introductionmentioning

confidence: 99%

Prediction of carbon distribution in the leaves of birch stands using normative tables

Вайс

Gerasimova

Melnik

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The intensity of anthropogenic impact on forests, according to many researchers, will increase in the next twenty years. In this regard, the area of deciduous plantings in the taiga zone will increase. Knowledge of carbon stocks in green biomass will allow the necessary calculations of the carbon budget of forest ecosystems to be made. Birch in the taiga zone is one of the most significant wood carbon sinks, especially in the initial period of growth. The article used a normative approach to assessing the carbon stock in the leaf fraction of birch plantations. As a result, a number of conclusions were drawn. The use of two series of distributions compiled for birch forests of the forest-steppe and taiga zones showed their insignificant difference in relation to the determination of leaf biomass. The disadvantage of using distribution series when estimating the carbon budget is the inherent linear nature of the dynamics, which does not correspond to the real conditions of the age development of the assimilation apparatus. When determining carbon stocks for the leaf fraction, a high percentage of uncertainty is observed, this is noted by many researchers. To improve the accuracy of estimates of the biological productivity of birch plantations, it is necessary to use local standards and local research data to the maximum.

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Climatically Caused Territorial Changes in the Phytomass of Forest-Forming Tree Species of Eurasia and Their Forecasting

Cited by 4 publications

References 0 publications

Отношение Подземной Биомассы К Надземной Лесообразующих Видов Евразии В Градиентах Температур И Осадков

Отношение Подземной Биомассы К Надземной Лесообразующих Видов Евразии В Градиентах Температур И Осадков

Monitoring the budget of green phytomass of birch forest stands, taking into account the structure by diameter

Prediction of carbon distribution in the leaves of birch stands using normative tables

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