Land‐Atmosphere Drivers of Landscape‐Scale Plant Water Content Loss
©2020. The Authors. Plant water content observations using microwave remote sensing measurements allow monitoring of landscape-scale plant water stress. During soil drying following rainfall events, we use a Granger causality framework to quantify the degree to which environmental factors drive sate...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Geophysical Union (AGU)
2021
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| Online Access: | https://hdl.handle.net/1721.1/132789 |
| _version_ | 1826198261521711104 |
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| author | Feldman, Andrew F Short Gianotti, Daniel J Trigo, Isabel F Salvucci, Guido D Entekhabi, Dara |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Feldman, Andrew F Short Gianotti, Daniel J Trigo, Isabel F Salvucci, Guido D Entekhabi, Dara |
| author_sort | Feldman, Andrew F |
| collection | MIT |
| description | ©2020. The Authors. Plant water content observations using microwave remote sensing measurements allow monitoring of landscape-scale plant water stress. During soil drying following rainfall events, we use a Granger causality framework to quantify the degree to which environmental factors drive satellite-based plant water content loss across Africa's diverse biomes. After soil drying into the water-limited regime, satellite observations show that plants dry while solar radiation, vapor pressure deficit, and diurnal temperature amplitude increase. We find that soil drying primarily drives plant water content loss across African drylands, though with regional effects of diurnal temperature amplitude increases (found to indicate vapor pressure deficit increases here). We also detect interactions between these factors that reinforce plant drying during periods of soil moisture loss. Our results provide observational evidence across Africa that individual and interactive components of surface drying and heating can all drive plant water stress, especially during intermittent poststorm drying periods. |
| first_indexed | 2024-09-23T11:02:01Z |
| format | Article |
| id | mit-1721.1/132789 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:02:01Z |
| publishDate | 2021 |
| publisher | American Geophysical Union (AGU) |
| record_format | dspace |
| spelling | mit-1721.1/1327892024-06-03T17:25:18Z Land‐Atmosphere Drivers of Landscape‐Scale Plant Water Content Loss Feldman, Andrew F Short Gianotti, Daniel J Trigo, Isabel F Salvucci, Guido D Entekhabi, Dara Massachusetts Institute of Technology. Department of Civil and Environmental Engineering ©2020. The Authors. Plant water content observations using microwave remote sensing measurements allow monitoring of landscape-scale plant water stress. During soil drying following rainfall events, we use a Granger causality framework to quantify the degree to which environmental factors drive satellite-based plant water content loss across Africa's diverse biomes. After soil drying into the water-limited regime, satellite observations show that plants dry while solar radiation, vapor pressure deficit, and diurnal temperature amplitude increase. We find that soil drying primarily drives plant water content loss across African drylands, though with regional effects of diurnal temperature amplitude increases (found to indicate vapor pressure deficit increases here). We also detect interactions between these factors that reinforce plant drying during periods of soil moisture loss. Our results provide observational evidence across Africa that individual and interactive components of surface drying and heating can all drive plant water stress, especially during intermittent poststorm drying periods. 2021-10-07T20:28:05Z 2021-10-07T20:28:05Z 2020-11 2020-10 2021-10-07T16:32:52Z Article http://purl.org/eprint/type/JournalArticle 1944-8007 https://hdl.handle.net/1721.1/132789 Feldman, A. F., Short Gianotti, D. J.,Trigo, I. F., Salvucci, G. D.,& Entekhabi, D. (2020).Land-atmosphere drivers of landscape-scale plant water content loss. Geophysical Research Letters, 47 en 10.1029/2020GL090331 Geophysical Research Letters Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf American Geophysical Union (AGU) American Geophysical Union (AGU) |
| spellingShingle | Feldman, Andrew F Short Gianotti, Daniel J Trigo, Isabel F Salvucci, Guido D Entekhabi, Dara Land‐Atmosphere Drivers of Landscape‐Scale Plant Water Content Loss |
| title | Land‐Atmosphere Drivers of Landscape‐Scale Plant Water Content Loss |
| title_full | Land‐Atmosphere Drivers of Landscape‐Scale Plant Water Content Loss |
| title_fullStr | Land‐Atmosphere Drivers of Landscape‐Scale Plant Water Content Loss |
| title_full_unstemmed | Land‐Atmosphere Drivers of Landscape‐Scale Plant Water Content Loss |
| title_short | Land‐Atmosphere Drivers of Landscape‐Scale Plant Water Content Loss |
| title_sort | land atmosphere drivers of landscape scale plant water content loss |
| url | https://hdl.handle.net/1721.1/132789 |
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