Evolution of Global Terrestrial Gross Primary Productivity Trend
Increased global vegetation gross primary productivity (GPP) over the past decades has led to an enhanced terrestrial carbon sink, an important factor in mitigating global warming. However, the global spatiotemporal evolution of GPP trends is still under debate, largely limiting our understanding of...
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| Format: | Article |
| Language: | English |
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American Association for the Advancement of Science (AAAS)
2024-01-01
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| Series: | Ecosystem Health and Sustainability |
| Online Access: | https://spj.science.org/doi/10.34133/ehs.0278 |
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| _version_ | 1846110766854307840 |
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| author | Zihao Wang Josep Peñuelas Torbern Tagesson W. K. Smith Mousong Wu Wei He Stephen Sitch Songhan Wang |
| author_facet | Zihao Wang Josep Peñuelas Torbern Tagesson W. K. Smith Mousong Wu Wei He Stephen Sitch Songhan Wang |
| author_sort | Zihao Wang |
| collection | DOAJ |
| description | Increased global vegetation gross primary productivity (GPP) over the past decades has led to an enhanced terrestrial carbon sink, an important factor in mitigating global warming. However, the global spatiotemporal evolution of GPP trends is still under debate, largely limiting our understanding of the sustainability in terrestrial carbon sink. Here in this study, based on a dozen of long-term global GPP datasets, we found that global GPP trends fell significantly from 0.43 PgC year−2 in 1982–1999 to 0.17 PgC year−2 in 2000–2016, a signal detected across >68% of the terrestrial surface. The decrease in GPP trends was more pronounced from satellite-based GPP datasets than from process-based models, which may result from a decline in the CO2 fertilization effect. This finding therefore indicates that the terrestrial carbon sink may become saturated in the future, and highlights the urgent need of stricter strategies for reducing carbon emissions to mitigate global warming. |
| format | Article |
| id | doaj-art-936316de7de94629a39e0449e3732192 |
| institution | Kabale University |
| issn | 2332-8878 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | Article |
| series | Ecosystem Health and Sustainability |
| spelling | doaj-art-936316de7de94629a39e0449e37321922024-12-23T14:12:49ZengAmerican Association for the Advancement of Science (AAAS)Ecosystem Health and Sustainability2332-88782024-01-011010.34133/ehs.0278Evolution of Global Terrestrial Gross Primary Productivity TrendZihao Wang0Josep Peñuelas1Torbern Tagesson2W. K. Smith3Mousong Wu4Wei He5Stephen Sitch6Songhan Wang7College of Agriculture, Nanjing Agricultural University, Nanjing, China.CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain.Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden.School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA.International Institute for Earth System Science, Nanjing University, Nanjing, Jiangsu 210023, China.International Institute for Earth System Science, Nanjing University, Nanjing, Jiangsu 210023, China.College of Life and Environmental Sciences, University of Exeter, Exeter, UK.College of Agriculture, Nanjing Agricultural University, Nanjing, China.Increased global vegetation gross primary productivity (GPP) over the past decades has led to an enhanced terrestrial carbon sink, an important factor in mitigating global warming. However, the global spatiotemporal evolution of GPP trends is still under debate, largely limiting our understanding of the sustainability in terrestrial carbon sink. Here in this study, based on a dozen of long-term global GPP datasets, we found that global GPP trends fell significantly from 0.43 PgC year−2 in 1982–1999 to 0.17 PgC year−2 in 2000–2016, a signal detected across >68% of the terrestrial surface. The decrease in GPP trends was more pronounced from satellite-based GPP datasets than from process-based models, which may result from a decline in the CO2 fertilization effect. This finding therefore indicates that the terrestrial carbon sink may become saturated in the future, and highlights the urgent need of stricter strategies for reducing carbon emissions to mitigate global warming.https://spj.science.org/doi/10.34133/ehs.0278 |
| spellingShingle | Zihao Wang Josep Peñuelas Torbern Tagesson W. K. Smith Mousong Wu Wei He Stephen Sitch Songhan Wang Evolution of Global Terrestrial Gross Primary Productivity Trend Ecosystem Health and Sustainability |
| title | Evolution of Global Terrestrial Gross Primary Productivity Trend |
| title_full | Evolution of Global Terrestrial Gross Primary Productivity Trend |
| title_fullStr | Evolution of Global Terrestrial Gross Primary Productivity Trend |
| title_full_unstemmed | Evolution of Global Terrestrial Gross Primary Productivity Trend |
| title_short | Evolution of Global Terrestrial Gross Primary Productivity Trend |
| title_sort | evolution of global terrestrial gross primary productivity trend |
| url | https://spj.science.org/doi/10.34133/ehs.0278 |
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