Patterns for Populus spp. Stand Biomass in Gradients of Winter Temperature and Precipitation of Eurasia

Authors

Vladimir Andreevich Usoltev, Nanjing University of Information Science and Technology
Baozhang Chen, Nanjing University of Information Science and Technology
Seyed Omid Reza Shobairi, Nanjing University of Information Science and Technology
Ivan Stepanovich Tsepordey, Botanical Garden of Ural Branch of RAS
Viktor Petrovich Chasovskikh, Ural State Forest Engineering University
Shoaib Ahmad Anees, Beijing Forestry University

Document Type

Article

Journal/Book Title/Conference

Forests

Volume

11

Issue

9

Publisher

MDPI AG

First Page

1

Last Page

11

Publication Date

8-19-2020

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 License.

Abstract

Based on a generated database of 413 sample plots, with definitions of stand biomass of the genus Populus spp. in Eurasia, from France to Japan and southern China, statistically significant changes in the structure of forest stand biomass were found, with shifts in winter temperatures and average annual precipitation. When analyzing the reaction of the structure of the biomass of the genus Populus to temperature and precipitation in their transcontinental gradients, a clearly expressed positive relationship of all components of the biomass with the temperature in January is visible. Their relationship with precipitation is less clear; in warm climate zones, when precipitation increases, the biomass of all wood components decreases intensively, and in cold climate zones, this decrease is less pronounced. The foliage biomass does not increase when precipitation decreases, as is typical for wood components, but decreases. This can be explained by the specifics of the functioning of the assimilation apparatus, namely its transpiration activity when warming, and the corresponding increase in transpiration, which requires an increase in the influx of assimilates into the foliage, and the desiccation of the climate that reduces this influx of assimilates. Comparison of the obtained patterns with previously published results for other species from Eurasia showed partial or complete discrepancies, the causes of which require special physiological studies. The results obtained can be useful in the management of biosphere functions of forests, which is important in the implementation of climate stabilization measures, as well as in the validation of the results of simulation experiments to assess the carbon-deposition capacity of forests.

Recommended Citation

Usoltsev, V.A.; Chen, B.; Shobairi, S.O.R.; Tsepordey, I.S.; Chasovskikh, V.P.; Anees, S.A. Patterns for Populus spp. Stand Biomass in Gradients of Winter Temperature and Precipitation of Eurasia. Forests 2020, 11, 906.