Higher plant photosynthetic capability in autumn responding to low atmospheric vapor pressure deficit
It has been long established that the terrestrial vegetation in spring has stronger photosynthetic capability than in autumn. However, this study challenges this consensus by comparing photosynthetic capability of terrestrial vegetation between the spring and autumn seasons based on measurements of...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-11-01
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| Series: | The Innovation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666675821000886 |
| _version_ | 1830206934960046080 |
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| author | Yawen Wang Wenfang Xu Wenping Yuan Xiuzhi Chen Bingwei Zhang Lei Fan Bin He Zhongmin Hu Shuguang Liu Wei Liu Shilong Piao |
| author_facet | Yawen Wang Wenfang Xu Wenping Yuan Xiuzhi Chen Bingwei Zhang Lei Fan Bin He Zhongmin Hu Shuguang Liu Wei Liu Shilong Piao |
| author_sort | Yawen Wang |
| collection | DOAJ |
| description | It has been long established that the terrestrial vegetation in spring has stronger photosynthetic capability than in autumn. However, this study challenges this consensus by comparing photosynthetic capability of terrestrial vegetation between the spring and autumn seasons based on measurements of 100 in situ eddy covariance towers over global extratropical ecosystems. At the majority of these sites, photosynthetic capability, indicated by light use efficiency (LUE) and apparent quantum efficiency, is significantly higher in autumn than in spring, due to lower atmosphere vapor pressure deficit (VPD) at the same air temperature. Seasonal VPD differences also substantially explain the interannual variability of the differences in photosynthetic capability between spring and autumn. We further reveal that VPD in autumn is significantly lower than in spring over 74.14% of extratropical areas, based on a global climate dataset. In contrast, LUE derived from a data-driven vegetation production dataset is significantly higher in autumn in over 61.02% of extratropical vegetated areas. Six Earth system models consistently projected continuous larger VPD values in spring compared with autumn, which implies that the impacts on vegetation growth will long exist and should be adequately considered when assessing the seasonal responses of terrestrial ecosystems to future climate conditions. Public summary: • Autumn VPD is lower than spring VPD at the same air temperature over majority of the extratropical vegetated land • Photosynthetic capability is significantly higher in autumn than in spring due to lower VPD • Earth System Models projected continuous larger VPD values in spring as against autumn |
| first_indexed | 2024-12-18T04:22:30Z |
| format | Article |
| id | doaj.art-5b8f6bd075734c5d8d0b370db0c3448e |
| institution | Directory Open Access Journal |
| issn | 2666-6758 |
| language | English |
| last_indexed | 2024-12-18T04:22:30Z |
| publishDate | 2021-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | The Innovation |
| spelling | doaj.art-5b8f6bd075734c5d8d0b370db0c3448e2022-12-21T21:21:11ZengElsevierThe Innovation2666-67582021-11-0124100163Higher plant photosynthetic capability in autumn responding to low atmospheric vapor pressure deficitYawen Wang0Wenfang Xu1Wenping Yuan2Xiuzhi Chen3Bingwei Zhang4Lei Fan5Bin He6Zhongmin Hu7Shuguang Liu8Wei Liu9Shilong Piao10Physical Oceanography Laboratory, College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao 266100, ChinaSchool of Atmospheric Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Zhuhai 519082, ChinaSchool of Atmospheric Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Zhuhai 519082, China; Corresponding authorSchool of Atmospheric Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Zhuhai 519082, ChinaZhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University at Zhuhai, Zhuhai 519087, ChinaSchool of Geographical Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaCollege of Global Change and Earth System Science, Beijing Normal University, Beijing 100038, ChinaSchool of Geography, South China Normal University, Guangzhou 510631, ChinaNational Engineering Laboratory for Applied Technology of Forestry & Ecology in South China and College of Biological Science and Technology, Central South University of Forestry and Technology, Changsha 410004, ChinaState Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, ChinaSino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing 100871, ChinaIt has been long established that the terrestrial vegetation in spring has stronger photosynthetic capability than in autumn. However, this study challenges this consensus by comparing photosynthetic capability of terrestrial vegetation between the spring and autumn seasons based on measurements of 100 in situ eddy covariance towers over global extratropical ecosystems. At the majority of these sites, photosynthetic capability, indicated by light use efficiency (LUE) and apparent quantum efficiency, is significantly higher in autumn than in spring, due to lower atmosphere vapor pressure deficit (VPD) at the same air temperature. Seasonal VPD differences also substantially explain the interannual variability of the differences in photosynthetic capability between spring and autumn. We further reveal that VPD in autumn is significantly lower than in spring over 74.14% of extratropical areas, based on a global climate dataset. In contrast, LUE derived from a data-driven vegetation production dataset is significantly higher in autumn in over 61.02% of extratropical vegetated areas. Six Earth system models consistently projected continuous larger VPD values in spring compared with autumn, which implies that the impacts on vegetation growth will long exist and should be adequately considered when assessing the seasonal responses of terrestrial ecosystems to future climate conditions. Public summary: • Autumn VPD is lower than spring VPD at the same air temperature over majority of the extratropical vegetated land • Photosynthetic capability is significantly higher in autumn than in spring due to lower VPD • Earth System Models projected continuous larger VPD values in spring as against autumnhttp://www.sciencedirect.com/science/article/pii/S2666675821000886light use efficiencyvapor pressure deficitvegetation indexcarbon cycle |
| spellingShingle | Yawen Wang Wenfang Xu Wenping Yuan Xiuzhi Chen Bingwei Zhang Lei Fan Bin He Zhongmin Hu Shuguang Liu Wei Liu Shilong Piao Higher plant photosynthetic capability in autumn responding to low atmospheric vapor pressure deficit The Innovation light use efficiency vapor pressure deficit vegetation index carbon cycle |
| title | Higher plant photosynthetic capability in autumn responding to low atmospheric vapor pressure deficit |
| title_full | Higher plant photosynthetic capability in autumn responding to low atmospheric vapor pressure deficit |
| title_fullStr | Higher plant photosynthetic capability in autumn responding to low atmospheric vapor pressure deficit |
| title_full_unstemmed | Higher plant photosynthetic capability in autumn responding to low atmospheric vapor pressure deficit |
| title_short | Higher plant photosynthetic capability in autumn responding to low atmospheric vapor pressure deficit |
| title_sort | higher plant photosynthetic capability in autumn responding to low atmospheric vapor pressure deficit |
| topic | light use efficiency vapor pressure deficit vegetation index carbon cycle |
| url | http://www.sciencedirect.com/science/article/pii/S2666675821000886 |
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