Dynamics of CO2 fluxes and environmental responses in a Poplar plantation
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 vari...
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| Format: | Article |
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Frontiers Media S.A.
2024-11-01
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| Series: | Frontiers in Environmental Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenvs.2024.1443779/full |
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| author | Mengyu Ge Mengyu Ge Weifeng Wang Honghua Ruan Guobing Wang Shuang Zhang Shuiqiang Yu |
| author_facet | Mengyu Ge Mengyu Ge Weifeng Wang Honghua Ruan Guobing Wang Shuang Zhang Shuiqiang Yu |
| author_sort | Mengyu Ge |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-52f6cb472da045fd8e6d6dcbde363bcd |
| institution | Kabale University |
| issn | 2296-665X |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Environmental Science |
| spelling | doaj-art-52f6cb472da045fd8e6d6dcbde363bcd2025-01-27T08:40:29ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2024-11-011210.3389/fenvs.2024.14437791443779Dynamics of CO2 fluxes and environmental responses in a Poplar plantationMengyu Ge0Mengyu Ge1Weifeng Wang2Honghua Ruan3Guobing Wang4Shuang Zhang5Shuiqiang Yu6College of Ecology and Environment, Nanjing Forestry University, Nanjing, ChinaDepartment of Agricultural Sciences, University of Helsinki, Helsinki, FinlandCollege of Ecology and Environment, Nanjing Forestry University, Nanjing, ChinaCollege of Ecology and Environment, Nanjing Forestry University, Nanjing, ChinaCollege of Ecology and Environment, Nanjing Forestry University, Nanjing, ChinaCollege of Ecology and Environment, Nanjing Forestry University, Nanjing, ChinaCollege of Ecology and Environment, Nanjing Forestry University, Nanjing, ChinaForest 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.https://www.frontiersin.org/articles/10.3389/fenvs.2024.1443779/fullCO2 fluxeseddy covarianceenvironmental variablespoplar plantationflux footprint size |
| spellingShingle | Mengyu Ge Mengyu Ge Weifeng Wang Honghua Ruan Guobing Wang Shuang Zhang Shuiqiang Yu Dynamics of CO2 fluxes and environmental responses in a Poplar plantation Frontiers in Environmental Science CO2 fluxes eddy covariance environmental variables poplar plantation flux footprint size |
| title | Dynamics of CO2 fluxes and environmental responses in a Poplar plantation |
| title_full | Dynamics of CO2 fluxes and environmental responses in a Poplar plantation |
| title_fullStr | Dynamics of CO2 fluxes and environmental responses in a Poplar plantation |
| title_full_unstemmed | Dynamics of CO2 fluxes and environmental responses in a Poplar plantation |
| title_short | Dynamics of CO2 fluxes and environmental responses in a Poplar plantation |
| title_sort | dynamics of co2 fluxes and environmental responses in a poplar plantation |
| topic | CO2 fluxes eddy covariance environmental variables poplar plantation flux footprint size |
| url | https://www.frontiersin.org/articles/10.3389/fenvs.2024.1443779/full |
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