Biophysical effects of croplands on land surface temperature
Abstract Converting natural vegetation to croplands alters the local land surface energy budget. Here, we use two decades of satellite data and a physics-based framework to analyse the biophysical mechanisms by which croplands influence daily mean land surface temperature (LST). Globally, 60% of cro...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-12-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-55319-2 |
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| _version_ | 1841559317703032832 |
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| author | Chi Chen Yang Li Xuhui Wang Xiangzhong Luo Yue Li Yu Cheng Zhe Zhu |
| author_facet | Chi Chen Yang Li Xuhui Wang Xiangzhong Luo Yue Li Yu Cheng Zhe Zhu |
| author_sort | Chi Chen |
| collection | DOAJ |
| description | Abstract Converting natural vegetation to croplands alters the local land surface energy budget. Here, we use two decades of satellite data and a physics-based framework to analyse the biophysical mechanisms by which croplands influence daily mean land surface temperature (LST). Globally, 60% of croplands exhibit an annual warming effect, while 40% have a cooling effect compared to their surrounding natural ecosystems. Aerodynamic resistance is identified as the dominant biophysical factor impacting LST by adjusting latent heat flux. The magnitude of cropland-induced LST change is negatively correlated with the difference in leaf area index between croplands and their surrounding biome types. The strongest warming occurs in temperate dry regions where croplands are surrounded by savannas. However, a lower-than-expected LST disturbance is seen in hot and wet regions where croplands are surrounded by rainforests, attributed to lower cropland fraction and energy limitations. These findings highlight the complex interplay of land use, vegetation, and regional climate, providing valuable insights into sustainable agriculture and land-based climate change mitigation. |
| format | Article |
| id | doaj-art-d0ca1802f22845d294b256f6c4871b8e |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-d0ca1802f22845d294b256f6c4871b8e2025-01-05T12:35:34ZengNature PortfolioNature Communications2041-17232024-12-0115111010.1038/s41467-024-55319-2Biophysical effects of croplands on land surface temperatureChi Chen0Yang Li1Xuhui Wang2Xiangzhong Luo3Yue Li4Yu Cheng5Zhe Zhu6Department of Ecology, Evolution, and Natural Resource, Rutgers UniversityDepartment of Geography, National University of SingaporeSino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking UniversityDepartment of Geography, National University of SingaporeDepartment of Geography, University of CaliforniaDepartment of Earth and Planetary Sciences, Harvard UniversityDepartment of Natural Resources and the Environment, University of ConnecticutAbstract Converting natural vegetation to croplands alters the local land surface energy budget. Here, we use two decades of satellite data and a physics-based framework to analyse the biophysical mechanisms by which croplands influence daily mean land surface temperature (LST). Globally, 60% of croplands exhibit an annual warming effect, while 40% have a cooling effect compared to their surrounding natural ecosystems. Aerodynamic resistance is identified as the dominant biophysical factor impacting LST by adjusting latent heat flux. The magnitude of cropland-induced LST change is negatively correlated with the difference in leaf area index between croplands and their surrounding biome types. The strongest warming occurs in temperate dry regions where croplands are surrounded by savannas. However, a lower-than-expected LST disturbance is seen in hot and wet regions where croplands are surrounded by rainforests, attributed to lower cropland fraction and energy limitations. These findings highlight the complex interplay of land use, vegetation, and regional climate, providing valuable insights into sustainable agriculture and land-based climate change mitigation.https://doi.org/10.1038/s41467-024-55319-2 |
| spellingShingle | Chi Chen Yang Li Xuhui Wang Xiangzhong Luo Yue Li Yu Cheng Zhe Zhu Biophysical effects of croplands on land surface temperature Nature Communications |
| title | Biophysical effects of croplands on land surface temperature |
| title_full | Biophysical effects of croplands on land surface temperature |
| title_fullStr | Biophysical effects of croplands on land surface temperature |
| title_full_unstemmed | Biophysical effects of croplands on land surface temperature |
| title_short | Biophysical effects of croplands on land surface temperature |
| title_sort | biophysical effects of croplands on land surface temperature |
| url | https://doi.org/10.1038/s41467-024-55319-2 |
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