Quartzite Aspect Polygon 1 - USQZT001
Additional Site Information

Richard L. Everett, Richard Schellhaas, Don Spurbeck, Pete Ohlson, Dave Keenum


Dating Method: Crossdated

Reference: Everett, R. L., R. Schellhaas, D. Keenum, D. Spurbeck and P. Ohlson.
2000. Fire history in the ponderosa pine/Douglas-fir forests on the east
slope of the Washington Cascades. Forest Ecology and Management
129:207-225. 

Hessl, A. E., McKenzie, D., and Everett, R. 2004. Fire and climatic
variability in the inland Pacific Northwest.  Ecological Applications
14:425-442. 

Comments: This is one of 8 separate aspect polygon subsites that make
up the larger 3,116 ha Quartzite site. Each of the 8 subsites have been 
archived separately using the following filenames (with ".fhx" appended 
for the FHX2 data files and ".txt" appended for the accompanying 
documentation files): usqzt001, usqzt002, usqzt003, usqzt004, usqzt005,
usqzt006, usqzt007, usqzt008.

Individual Tree Information: 
(Tree ID, Species, Diameter at Breast Height(cm), Status, Latitude(dd), Longitude(dd))
D10,Pinus ponderosa,25,cut stump,48.311049955,-117.636144819
D11,Pinus ponderosa,26,cut stump,48.310373160,-117.634305660
D12,Pinus ponderosa,24,cut stump,48.309613084,-117.633724141
D13,Pinus ponderosa,30,log,48.308675074,-117.637717152
D4,Pinus ponderosa,20,live,48.310442535,-117.635565160
D61,Larix occidentalis,30,cut stump,48.312082805,-117.669341062
K14,Pinus ponderosa,12,snag,48.310293284,-117.675153159
K15,Pinus ponderosa,28,live,48.314222495,-117.668911328
K16,Pinus ponderosa,50,live,48.314141511,-117.669711280
K17,Pinus ponderosa,30,live,48.312878650,-117.622779562
K18,Pinus ponderosa,35,live,48.312652158,-117.622319099
P28,Pinus ponderosa,32,cut stump,48.315514454,-117.629334330
P2,Pinus ponderosa,16,,48.312594089,-117.632960068
P3,Pinus ponderosa,27,live,48.311094312,-117.636827170
P58,Pinus ponderosa,38,live,48.310694885,-117.617260716
P7,Pinus ponderosa,30,live,48.309906616,-117.649517823
P8,Pinus ponderosa,35,live,48.310435967,-117.649382732
P9,Larix occidentalis,24,live,48.309820589,-117.651233038
R2,Pinus ponderosa,14,cut stump,48.313055803,-117.632279213
R4,Pinus ponderosa,30,log,48.314123695,-117.632406837
R50,Larix occidentalis,28,live,48.308710482,-117.617236784
R51,Pinus ponderosa,35,live,48.312076676,-117.615789851

Fire History Graphs: Fire History Graphs illustrate specific years when 
fires occurred and how many trees were scarred. They are available in both 
PDF and PNG formats. The graphs consist of 2 parts, both of which show the 
X axis (time line) at the bottom with the earliest year of information on 
the left and the latest on the right.
The Fire Index Plot is the topmost plot, and shows two variables: sample 
depth (the number of recording trees in each year) as a blue line along 
the left Y axis, compared with the percent trees scarred shown as gray bars 
along the right Y axis.
Below, the Fire Chronology Plot consists of horizontal lines representing
injuries by year on individual sampled trees. Symbols are overlain that 
denote the years containing the dendrochronologically-dated fire scars or
injuries. The sample ID of each tree is displayed to the right of each
line. The Composite Axis below represents the composite information from
all individual series. The symbols used to represent the fire scars or
injuries, and the filters used to determine the composite information,
are shown in the legend.
These graphs were created using the Fire History Analysis and Exploration
System (FHAES). See http://frames.nbii.gov/fhaes/ for more information.