Projected Strengthening of Water Constraint on Seasonal Peak Photosynthesis Under Climatic Warming in Northern Ecosystems
Abstract The seasonal peak of vegetation photosynthesis is a key indicator of terrestrial ecosystem productivity. Water availability and temperature are the primary factors limiting vegetation photosynthesis. In this study, we used solar‐induced chlorophyll fluorescence as a proxy for photosynthesis...
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| Format: | Article |
| Language: | English |
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Wiley
2025-08-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL114461 |
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| _version_ | 1849389599702384640 |
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| author | Xingan Chen Yuefei Huang Shuo Zhang Yuting Yang Shen Tan Chong Nie Guangqian Wang Zhichao Chen |
| author_facet | Xingan Chen Yuefei Huang Shuo Zhang Yuting Yang Shen Tan Chong Nie Guangqian Wang Zhichao Chen |
| author_sort | Xingan Chen |
| collection | DOAJ |
| description | Abstract The seasonal peak of vegetation photosynthesis is a key indicator of terrestrial ecosystem productivity. Water availability and temperature are the primary factors limiting vegetation photosynthesis. In this study, we used solar‐induced chlorophyll fluorescence as a proxy for photosynthesis to investigate water and temperature constraints on peak vegetation photosynthesis across northern ecosystems (north of 30°N). We observed a marked expansion of water‐constrained zones in northern ecosystems over the past two decades. We identified a general relationship between mean annual temperature and precipitation that effectively distinguishes between temperature‐ and water‐constrained ecosystems. This relationship enabled us to project future shifts in these constraints under different climate change scenarios. Our results indicate that water‐constrained regions are projected to expand from 31% to 40%, excluding no‐data areas, under the moderate climate scenario (SSP245) and to 53% under the high‐emissions scenario (SSP585) by 2100, with complementary shrinkage of temperature‐constrained regions. |
| format | Article |
| id | doaj-art-b8f7e0bc648d4c8698e46a2d9389bed8 |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-b8f7e0bc648d4c8698e46a2d9389bed82025-08-20T03:41:54ZengWileyGeophysical Research Letters0094-82761944-80072025-08-015215n/an/a10.1029/2024GL114461Projected Strengthening of Water Constraint on Seasonal Peak Photosynthesis Under Climatic Warming in Northern EcosystemsXingan Chen0Yuefei Huang1Shuo Zhang2Yuting Yang3Shen Tan4Chong Nie5Guangqian Wang6Zhichao Chen7State Key Laboratory of Hydroscience and Engineering Department of Hydraulic Engineering Tsinghua University Beijing ChinaState Key Laboratory of Hydroscience and Engineering Department of Hydraulic Engineering Tsinghua University Beijing ChinaState Key Laboratory of Hydroscience and Engineering Department of Hydraulic Engineering Tsinghua University Beijing ChinaState Key Laboratory of Hydroscience and Engineering Department of Hydraulic Engineering Tsinghua University Beijing ChinaState Key Laboratory to Efficient Production of Forest Resources College of Forestry Beijing Forestry University Beijing ChinaChinese Research Academy of Environmental Sciences Beijing ChinaState Key Laboratory of Hydroscience and Engineering Department of Hydraulic Engineering Tsinghua University Beijing ChinaState Key Laboratory of Hydroscience and Engineering Department of Hydraulic Engineering Tsinghua University Beijing ChinaAbstract The seasonal peak of vegetation photosynthesis is a key indicator of terrestrial ecosystem productivity. Water availability and temperature are the primary factors limiting vegetation photosynthesis. In this study, we used solar‐induced chlorophyll fluorescence as a proxy for photosynthesis to investigate water and temperature constraints on peak vegetation photosynthesis across northern ecosystems (north of 30°N). We observed a marked expansion of water‐constrained zones in northern ecosystems over the past two decades. We identified a general relationship between mean annual temperature and precipitation that effectively distinguishes between temperature‐ and water‐constrained ecosystems. This relationship enabled us to project future shifts in these constraints under different climate change scenarios. Our results indicate that water‐constrained regions are projected to expand from 31% to 40%, excluding no‐data areas, under the moderate climate scenario (SSP245) and to 53% under the high‐emissions scenario (SSP585) by 2100, with complementary shrinkage of temperature‐constrained regions.https://doi.org/10.1029/2024GL114461water constraintpeak photosynthesissolar‐induced chlorophyll fluorescence |
| spellingShingle | Xingan Chen Yuefei Huang Shuo Zhang Yuting Yang Shen Tan Chong Nie Guangqian Wang Zhichao Chen Projected Strengthening of Water Constraint on Seasonal Peak Photosynthesis Under Climatic Warming in Northern Ecosystems Geophysical Research Letters water constraint peak photosynthesis solar‐induced chlorophyll fluorescence |
| title | Projected Strengthening of Water Constraint on Seasonal Peak Photosynthesis Under Climatic Warming in Northern Ecosystems |
| title_full | Projected Strengthening of Water Constraint on Seasonal Peak Photosynthesis Under Climatic Warming in Northern Ecosystems |
| title_fullStr | Projected Strengthening of Water Constraint on Seasonal Peak Photosynthesis Under Climatic Warming in Northern Ecosystems |
| title_full_unstemmed | Projected Strengthening of Water Constraint on Seasonal Peak Photosynthesis Under Climatic Warming in Northern Ecosystems |
| title_short | Projected Strengthening of Water Constraint on Seasonal Peak Photosynthesis Under Climatic Warming in Northern Ecosystems |
| title_sort | projected strengthening of water constraint on seasonal peak photosynthesis under climatic warming in northern ecosystems |
| topic | water constraint peak photosynthesis solar‐induced chlorophyll fluorescence |
| url | https://doi.org/10.1029/2024GL114461 |
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