Skip to main content

ORIGINAL RESEARCH article

Front. Environ. Sci.
Sec. Biogeochemical Dynamics
Volume 12 - 2024 | doi: 10.3389/fenvs.2024.1443779

Dynamics of CO2 fluxes and environmental responses in a Poplar plantation

Provisionally accepted
Mengyu Ge Mengyu Ge 1,2*Weifeng Wang Weifeng Wang 2*Honghua Ruan Honghua Ruan 2Guobing Wang Guobing Wang 2Shuang Zhang Shuang Zhang 2Shuiqiang Yu Shuiqiang Yu 2
  • 1 University of Helsinki, Helsinki, Finland
  • 2 Nanjing Forestry University, Nanjing, Jiangsu Province, China

The final, formatted version of the article will be published soon.

    Forest plantations cover a large percentage of global forest landscapes contributing significantly to carbon sequestration. By using continuous eddy covariance technique, we observed net ecosystem CO2 exchange (NEE), gross primary production (GPP), ecosystem respiration (ER), and meteorological variables from August 2018 to December 2019 in a Poplar plantation. The Poplar plantation ecosystem was a carbon sink overall, with high carbon uptake in growing season and limited uptake/emission in non-growing season. The annual cumulative NEE, GEP, and ER were -763.61, 1542.19, and 778.58 g C m -2 yr -1 , respectively. Photosynthetically active radiation (PAR) significantly influenced NEE both at half-hourly and daily scale (P < 0.01 for both), while relative humidity (RH) and vapor pressure deficit (VPD) only significantly affected NEE at half-hourly scale (P < 0.01). The prevailing wind direction throughout 2019 was southeast and it varied between seasons. Southeast wind was the prevailing wind direction in summer and winter, while southwest and northeast wind were the dominant wind direction in spring and autumn, respectively. Our results highlight that polar plantations play an important role in storing carbon, and that understanding meteorological conditions is crucial in investigating ecosystem-atmosphere interactions and their impacts on carbon cycling.

    Keywords: Eddy-covariance, carbon flux, Environmental Variables, Footprint analysis, Poplar plantation

    Received: 04 Jun 2024; Accepted: 28 Oct 2024.

    Copyright: © 2024 Ge, Wang, Ruan, Wang, Zhang and Yu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Mengyu Ge, University of Helsinki, Helsinki, Finland
    Weifeng Wang, Nanjing Forestry University, Nanjing, Jiangsu Province, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.