Understanding tree transpiration variability is vital for assessing ecosystem water-use efficiency and forest health amid climate change, yet most landscape-level measurements do not differentiate individual trees. Using canopy temperature data from thermal cameras, we estimated the transpiration rates of individual trees at Harvard …
Journal: Geophysical Research Letters, Volume 51 (20): (2024). DOI: https://doi.org/10.1029/2024GL111479 Sites: US-Ha1, US-NR1
Tidal wetlands provide valuable ecosystem services, including storing large amounts of carbon. However, the net exchanges of carbon dioxide (CO2) and methane (CH4) in tidal wetlands are highly uncertain. While several biogeochemical models can operate in tidal wetlands, they have yet to be parameterized and validated against high-frequency, …
Journal: Journal of Geophysical Research - Biogeosciences, Volume : (2024). DOI: 10.1029/2023JG007943 Sites: US-EDN, US-LA1, US-PLM, US-Srr, US-StJ
Journal: EGUsphere, Volume : (2024). DOI: 10.5194/egusphere-2023-2937 Sites: PA-Bas
Surface ozone monitoring sites in the tropics are limited, despite the risk that surface ozone poses to human health, tropical forest and crop productivity. Atmospheric chemistry models allow us to assess ozone exposure in unmonitored locations and evaluate the potential influence of changing policies and climate on air quality, …
Journal: Atmospheric Chemistry And Physics, Volume 24 (21): 12537-12555 (2024). DOI: 10.5194/acp-24-12537-2024 Sites: PA-Bas
Bottomland hardwood wetland forests along the Atlantic Coast of the United States have been changing over time; this change has been exceptionally apparent in the last two decades. Tree mortality is one of the most visually striking changes occurring in these coastal forests today. Using 2009–2019 tree mortality data from a bottomland …
Journal: Forests, Volume 16 (1): 39 (2024). DOI: https://doi.org/10.3390/f16010039 Sites: US-NC4
Evapotranspiration (ET) links water, energy, and carbon balances, and its magnitude and patterns are changing due to climate and land use change in the southeastern U.S. Quantifying the environmental controls on ET is essential for developing reliable ecohydrological models for water resources management. Here, we synthesized eddy …
Journal: Agricultural And Forest Meteorology, Volume 349: 109960 (2024). DOI: https://doi.org/10.1016/j.agrformet.2024.109960 Sites: US-NC2
Land surface models diverge in their predictions of the Amazon forest’s response to climate change-induced droughts, with some showing a catastrophic collapse of forests, while others simulating resilience. Therefore, observations of tropical ecosystem responses to real-world droughts and other extreme events are needed. We report …
Journal: Agricultural And Forest Meteorology, Volume 353: 110037 (2024). DOI: https://doi.org/10.1016/j.agrformet.2024.110037 Sites: BR-Sa1
Climate change is affecting the phenology of terrestrial ecosystems. In deciduous forests, phenology in leaf area index (LAI) is the primary driver of seasonal variation in the fraction of absorbed photosynthetically active radiation (fAPAR), which drives photosynthesis. Remote sensing has been widely used to estimate LAI and fAPAR. …
Journal: Agricultural And Forest Meteorology, Volume 333: 109389 (2023). DOI: 10.1016/j.agrformet.2023.109389 Sites: US-Ha1
Climate change is affecting the phenology of terrestrial ecosystems. In deciduous forests, phenology in leaf area index (LAI) is the primary driver of seasonal variation in the fraction of absorbed photosynthetically active radiation (fAPAR), which drives photosynthesis. Remote sensing has been widely used to estimate LAI and fAPAR. …
Journal: Agricultural And Forest Meteorology, Volume 333: 109389 (2023). DOI: 10.1016/j.agrformet.2023.109389 Sites: US-Ha1, US-Ha2
To decrease negative environmental impacts associated with row crop agriculture, the conversion of conventional agricultural lands to no-till with cover crops or to restored prairie in the Midwest U.S. has been proposed and has the potential to alter hydrologic behavior. Our understanding of the impacts of this conversion on water …
Journal: Agricultural And Forest Meteorology, Volume 333: 109420 (2023). DOI: 10.1016/j.agrformet.2023.109420 Sites: US-Mo1, US-Mo2, US-Mo3