Increased Contribution of Extended Vegetation Growing Season to Boreal Terrestrial Ecosystem GPP Enhancement
Rapid Arctic warming is driving significant changes in boreal vegetation phenology and productivity. The potentially asynchronous response of these processes could substantially alter the relative impacts of phenological shifts on variations in gross primary productivity (GPP), but this remains poor...
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MDPI AG
2024-12-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/17/1/83 |
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| author | Meng Yu Yunfeng Cao Jiaxin Tian Boyu Ren |
| author_facet | Meng Yu Yunfeng Cao Jiaxin Tian Boyu Ren |
| author_sort | Meng Yu |
| collection | DOAJ |
| description | Rapid Arctic warming is driving significant changes in boreal vegetation phenology and productivity. The potentially asynchronous response of these processes could substantially alter the relative impacts of phenological shifts on variations in gross primary productivity (GPP), but this remains poorly understood. The objective of this study is to quantify the impact of phenology extension on boreal ecosystem GPP changes across different periods from 1982 to 2018. To achieve this, we developed a statistical model that integrates vegetation phenology and physiology, and introduced a new metric, the Relative Increment Effect (RIE), to assess the contribution of phenology extension to GPP increase. Our analysis revealed that phenology extension became the dominant driver of GPP increment over time. Specifically, the overall RIE for boreal vegetation increased by 22% from the earlier period (P1: 1982–2000, 3.2) to the more recent period (P2: 2001–2018, 3.93). This increase was more pronounced for grass and shrub ecosystems. Spatial patterns showed that RIE increases were particularly concentrated at high latitudes, especially in northern Siberia. These findings suggested that phenology extension was playing an increasing role in regulating boreal ecosystem productivity, with significant implications for the boreal carbon budget under future warming scenarios. |
| format | Article |
| id | doaj-art-38dbc463923e4db8bc2cbc135399e473 |
| institution | Kabale University |
| issn | 2072-4292 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj-art-38dbc463923e4db8bc2cbc135399e4732025-01-10T13:20:10ZengMDPI AGRemote Sensing2072-42922024-12-011718310.3390/rs17010083Increased Contribution of Extended Vegetation Growing Season to Boreal Terrestrial Ecosystem GPP EnhancementMeng Yu0Yunfeng Cao1Jiaxin Tian2Boyu Ren3Beijing Key Laboratory of Precision Forestry, Beijing Forestry University, Beijing 100083, ChinaBeijing Key Laboratory of Precision Forestry, Beijing Forestry University, Beijing 100083, ChinaBeijing Key Laboratory of Precision Forestry, Beijing Forestry University, Beijing 100083, ChinaBeijing Key Laboratory of Precision Forestry, Beijing Forestry University, Beijing 100083, ChinaRapid Arctic warming is driving significant changes in boreal vegetation phenology and productivity. The potentially asynchronous response of these processes could substantially alter the relative impacts of phenological shifts on variations in gross primary productivity (GPP), but this remains poorly understood. The objective of this study is to quantify the impact of phenology extension on boreal ecosystem GPP changes across different periods from 1982 to 2018. To achieve this, we developed a statistical model that integrates vegetation phenology and physiology, and introduced a new metric, the Relative Increment Effect (RIE), to assess the contribution of phenology extension to GPP increase. Our analysis revealed that phenology extension became the dominant driver of GPP increment over time. Specifically, the overall RIE for boreal vegetation increased by 22% from the earlier period (P1: 1982–2000, 3.2) to the more recent period (P2: 2001–2018, 3.93). This increase was more pronounced for grass and shrub ecosystems. Spatial patterns showed that RIE increases were particularly concentrated at high latitudes, especially in northern Siberia. These findings suggested that phenology extension was playing an increasing role in regulating boreal ecosystem productivity, with significant implications for the boreal carbon budget under future warming scenarios.https://www.mdpi.com/2072-4292/17/1/83boreal terrestrial ecosystemphenologyGPPlong-term changeinteraction |
| spellingShingle | Meng Yu Yunfeng Cao Jiaxin Tian Boyu Ren Increased Contribution of Extended Vegetation Growing Season to Boreal Terrestrial Ecosystem GPP Enhancement Remote Sensing boreal terrestrial ecosystem phenology GPP long-term change interaction |
| title | Increased Contribution of Extended Vegetation Growing Season to Boreal Terrestrial Ecosystem GPP Enhancement |
| title_full | Increased Contribution of Extended Vegetation Growing Season to Boreal Terrestrial Ecosystem GPP Enhancement |
| title_fullStr | Increased Contribution of Extended Vegetation Growing Season to Boreal Terrestrial Ecosystem GPP Enhancement |
| title_full_unstemmed | Increased Contribution of Extended Vegetation Growing Season to Boreal Terrestrial Ecosystem GPP Enhancement |
| title_short | Increased Contribution of Extended Vegetation Growing Season to Boreal Terrestrial Ecosystem GPP Enhancement |
| title_sort | increased contribution of extended vegetation growing season to boreal terrestrial ecosystem gpp enhancement |
| topic | boreal terrestrial ecosystem phenology GPP long-term change interaction |
| url | https://www.mdpi.com/2072-4292/17/1/83 |
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