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US-Syv: Sylvania Wilderness Area

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Tower_team:
PI:	Ankur Desai desai@aos.wisc.edu - University of Wisconsin
FluxContact:	Jonathan Thom jthom@ssec.wisc.edu - University of Wisconsin
Lat, Long:	46.2420, -89.3477
Elevation(m):	540.00
Network Affiliations:	AmeriFlux, Phenocam
Vegetation IGBP:	MF (Mixed Forests: Lands dominated by trees with a percent cover >60% and height exceeding 2 meters. Consists of tree communities with interspersed mixtures or mosaics of the other four forest types. None of the forest types exceeds 60% of landscape.)
Climate Koeppen:	Dfb (Warm Summer Continental: significant precipitation in all seasons )
Mean Annual Temp (°C):	3.81
Mean Annual Precip. (mm):	826
Flux Species Measured:	CO2, H, H2O
Years Data Collected:	2001 - Present
Years Data Available:	AmeriFlux BASE 2001 - 2024 Data Citation AmeriFlux FLUXNET 2001 - 2023 Data Citation
Data Use Policy:	AmeriFlux CC-BY-4.0 Policy¹
Description:	Old growth forest consisting primarily of sugar maple and eastern hemlock. Note that a small lake to the north and data analyses suggest that wind direction ... Old growth forest consisting primarily of sugar maple and eastern hemlock. Note that a small lake to the north and data analyses suggest that wind direction screening is appropriate (see Desai, A.R., Bolstad, P.V., Cook, B.D., Davis, K.J., and Carey, E.V., 2005. Comparing net ecosystem exchange of carbon dioxide between an old-growth and mature forest in the upper midwest, USA. Ag. For. Met. 128(1-2): 33-55 (doi: 10.1016/j.agrformet.2004). Site was chosen to represent an end member representative of the upland forests in the WLEF tall tower flux footprint. (Note, however, that old growth forests are not found within the WLEF tall tower flux footprint.) Virtual Site Visit: https://fen.aos.wisc.edu/owncloud/index.php/s/Il31u921iYXbSEO See More Show Less
URL:	http://flux.aos.wisc.edu/twiki/bin/view/Main/ChEASData
Research Topics:	The research and science objectives of the Sylvania Wilderness site are as follows: 1) Better quantify stand age effects in models of forest carbon exchange ... The research and science objectives of the Sylvania Wilderness site are as follows: 1) Better quantify stand age effects in models of forest carbon exchange and improve regional-scale estimates of NEE in old-growth forests; 2) Evaluate the carbon sink strength of old-growth forests; 3) Quantify the differential impact of environmental drivers, radiation, and vapor pressure deficit in old-growth forests; 4) Compare respiration from the old-growth forest with mature second-growth forests under similar climate, and derive the successional pattern of respiration; 5) Upscale sap flux to canopy transpiration, estimate canopy stomatal conductance, and examine transpiration and stomatal responses to environmental conditions; 6) Calculate water use efficiency and its responses to environmental conditions by combining sap flux measurements and eddy covariance measurements. (Deasi et al. (2005), Tang et al. (2006), Ewers et al. (2008), Tang et al. (2008)) See More Show Less
Acknowledgment:	—

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Image Credit: Jonathan Thom, 05/04/2013
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