Quartzite Aspect Polygon 4 - USQZT004
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 Each of the 8 subsites have been 
archived separately using the following filenames (with ".fhx" appended 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))
D21,Pinus ponderosa,30,live,48.254341585,-117.620732946
D22,Pinus ponderosa,32,snag,48.254025871,-117.619076292
D23,Pinus ponderosa,28,snag,48.252594909,-117.619545131
D25,Pinus ponderosa,41,live,48.244695262,-117.627517964
D26,Pinus ponderosa,30,live,48.244505258,-117.626640773
D27,Pinus ponderosa,30,snag,48.244048666,-117.627024022
D28,Pinus ponderosa,22,cut stump,48.244654652,-117.623045914
D41,Pinus ponderosa,32,live,48.244592525,-117.598062820
D42,Pinus ponderosa,30,live,48.245556273,-117.600018243
D43,Pinus ponderosa,38,live,48.244356528,-117.605933842
K11,Pinus ponderosa,27,live,48.244496241,-117.628293189
K3,Pinus ponderosa,30,cut stump,48.234216862,-117.593551644
K4,Pinus ponderosa,34,live,48.245112937,-117.597874470
K5,Pinus ponderosa,30,live,48.246527612,-117.600515661
K6,Pinus ponderosa,25,snag,48.244688317,-117.604576853
P25,Pinus ponderosa,28,cut stump,48.258636573,-117.618937491
P26,Pinus ponderosa,17,live,48.258432366,-117.620685234
P27,Pinus ponderosa,20,live,48.253035735,-117.622078270
P33,Pinus ponderosa,25,live,48.246569449,-117.617139281
P48,Pinus ponderosa,16,,48.237428985,-117.626457156
R12,Pinus ponderosa,40,live,48.247775779,-117.622208902
R13,Pinus ponderosa,36,snag,48.248104083,-117.621532385
R17,Pinus ponderosa,23,live,48.247740182,-117.616764512
R8,Pinus ponderosa,24,live,48.248552245,-117.622704396

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.