General Site Information
Site ID:US-Me2
Site Name:Metolius mature ponderosa pine
Tower Team: PI: Bev Law <> - Oregon State University
FluxContact: Hyojung Kwon <> - Oregon State University
BADMContact: Whitney Creason <> - Oregon State University
Technician: Chad Hanson <> - Oregon State University
Elevation (m):1253
IGBP:ENF (Evergreen Needleleaf Forests)
Climate Koeppen:Csb (Mediterranean: mild with dry, warm summer)
Mean Annual Temperature (degrees C):6.28
Mean Annual Precipitation (mm):523
Data Products: AmeriFlux BASE Dataset
FLUXNET2015 Dataset
FLUXNET LaThuile Dataset
Data Availability: AmeriFlux BASE:   13 years (Duration: 2002 - 2014)
FLUXNET2015:   13 years (Duration: 2002 - 2014)
FLUXNET LaThuile:   3 years (Duration: 2003 - 2005)
Data Downloads to Date: AmeriFlux BASE:   235 unique downloads
FLUXNET2015:   481 unique downloads
FLUXNET LaThuile:   90 unique downloads
Data DOIs: AmeriFlux BASE DOI: 10.17190/AMF/1246076
Description:The mean stand age is 71 years old and the stand age of the oldest 10% of trees is about 108 years old. This site is one of the Metolius core cluster sites with different age and disturbance classes and part of the AmeriFlux network. The overstory is almost exclusively composed of ponderosa pine trees (Pinus ponderosa Doug. Ex P. Laws) with a few scattered incense cedars (Calocedrus decurrens (Torr.) Florin) and has a peak leaf area index (LAI) of 2.1 m2 m-2. Tree height is relatively homogeneous at about 18 m, and the mean tree density is approximately 339 trees ha-1 (Irvine et al., 2008). The understory is sparse with an LAI of 0.2 m2 m-2 and primarily composed of bitterbrush (Purshia tridentata (Push) DC.) and greenleaf manzanita (Arctostaphylos patula Greene). Soils at the site are sandy (69%/24%/7% sand/silt/clay at 0–0.2 m depth and 66%/27%/7% at 0.2–0.5 m depth, and 54%/ 35%/11% at 0.5–1.0 m depth), freely draining with a soil depth of approximately 1.5 m (Irvine et al., 2008; Law et al., 2001b; Schwarz et al., 2004).
Acknowledgments:The Metolius AmeriFlux research was supported by the Office of Science (BER), U.S. Department of Energy, Grant No. DE-FG02-06ER64318).
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