Atmospheric turbulent circulations in the vicinity of wildland fire fronts play an important role in the transfer of momentum into and out of combustion zones, which in turn can potentially affect the behavior and spread of wildland fires. The vertical turbulent transfer of momentum is accomplished via individual sweep, ejection, …
Journal: Atmosphere, Volume 12 (8): 956 (2021). DOI: 10.3390/atmos12080956 Sites: US-Slt
Forested wetlands are important in regulating regional hydrology and climate. However, long-term studies on the hydrologic impacts of converting natural forested wetlands to pine plantations are rare for the southern US. From 2005-2018, we quantified water cycling in two post-harvest and newly-planted loblolly pine (Pinus taeda) …
Journal: Agricultural And Forest Meteorology, Volume 303: 108381 (2021). DOI: 10.1016/j.agrformet.2021.108381 Sites: US-NC1, US-NC2, US-NC3, US-NC4
Coastal wetlands store significant amounts of carbon (C) belowground, which may be altered through effects of rising temperature and changing hydrology on CO2 and CH4 fluxes and related microbial activities. Wetland microtopography (hummock-hollow) also plays a critical role in mediating plant growth, microbial activity, and thus …
Journal: Geoderma, Volume 402: 115367 (2021). DOI: 10.1016/j.geoderma.2021.115367 Sites: US-NC4
Grazing lands, including the native rangelands, cover an extensive area of the southeastern United States, representing an important component of the carbon balance for the region. In Florida, native rangelands extend over 3.1 Mha, experiencing a natural fire frequency between 2 – 5 years and a strong climatic variability. Management …
Journal: Agricultural And Forest Meteorology, Volume 311: 108682 (2021). DOI: https://doi.org/10.1016/j.agrformet.2021.108682 Sites: US-ONA
Among the ecosystem services provided by salt marshes is the use of their natural vegetation as pastures for livestock production. As a result, the prediction of biomass productivity can be of great interest for the sustainable management of these environments. Evapotranspiration is one of the variables most used to estimate the …
Journal: International Journal Of Biometeorology, Volume 65 (6): 873-882 (2021). DOI: https://doi.org/10.1007/s00484-020-02065-x Sites: AR-Rom
Water deficit in the atmosphere and soil are two key interactive factors that constrain
transpiration and vegetation productivity. It is not clear which of these two factors is more important for
the water and carbon flux response to drought stress in ecosystems. In this study, field data and numerical
modeling were used to …
Journal: Journal Of Geophysical Research: Atmospheres, Volume 126 (10): (2021). DOI: 10.1029/2021JD035004 Sites: PA-Bar
Tropical forests are an important part of global water and energy cycles, but the mechanisms that drive seasonality of their land-atmosphere exchanges have proven challenging to capture in models. Here, we (1) report the seasonality of fluxes of latent heat (LE), sensible heat (H), and outgoing short and longwave radiation at four …
Journal: Global Change Biology, Volume 27 (9): 1802-1819 (2021). DOI: https://doi.org/10.1111/gcb.15555 Sites: BR-Cax, BR-Ji3, BR-Ma2, BR-Sa1
“Sky islands” are characteristic of sequential mountain-valley terrain where mountains form an island archipelago rising from surrounding valleys of desert “sea”. At high elevations in the Madrean sky islands of the southwestern United States (USA) and Mexico, mixed evergreen conifer forests occur near the latitudinal extent …
Journal: Agricultural And Forest Meteorology, Volume 281: 107835 (2020). DOI: 10.1016/j.agrformet.2019.107835 Sites: US-MtB
Constructed wetlands built for water treatment often need biomass harvesting to remove nutrients from the system. Usually harvesting is done during the peak growing season to maximize the amount of nutrients removed from the system. This, however, can create huge methane fluxes that escape from plant tissues to the atmosphere. We …
Journal: Science Of The Total Environment, Volume 715: 136960 (2020). DOI: 10.1016/j.scitotenv.2020.136960 Sites: US-Tw5
There are few observational studies measuring the ecosystem‐scale productivity effects of changes in incident diffuse photosynthetically active radiation (PARdiffuse), especially related to wildfire smoke. Climate change‐induced increases to the duration and intensity of fire conditions have made smoke a common occurrence across …
Journal: Journal Of Geophysical Research: Biogeosciences, Volume : (2020). DOI: 10.1029/2019JG005380 Sites: US-Bi1, US-Bi2, US-Tw1, US-Tw4