Lower Stein River Valley - CALST001 Additional Site Information Emily K. Heyerdahl, Kenneth P. Lertzman, Stephen Karpuk Dating Method: Crossdated Sample Storage Location: School of Resource and Environmental Management, Simon Fraser University, 8888 University Drive, Burnaby, B.C. V5A 1S6 Canada Reference: Heyerdahl, E.K., K. Lertzman, and S. Karpuk. 2007. Local-scale controls of a low-severity fire regime (1750-1950), southern British Columbia, Canada. Écoscience. 14:40-47. Abstract: We reconstructed a history of low-severity fires from fire scars on ponderosa pine and Douglas-fir trees, on transects of plots over 330 ha near the northern limit of ponderosa pine in the southern interior of British Columbia, Canada. We demonstrated that local-scale spatial variation in fire frequency varied with topography and that the intra-ring position of fire scars (a proxy for fire seasonality) varied somewhat with topography but more strongly with tree species. For details of sampling and analysis, please refer to Heyerdahl et al. Comment: The plot and tree codes in the FHX2 file are constructed as follows. The first letter indicates the side of the river. Note that this is the *side* (north of the river versus south of the river) whereas the data in Heyerdahl et al. are presented by *aspect*, so that the samples from the north side of the Stein River are on the south aspect and vice versa. The second character indicates the transect (numbered from east to west on each side of the river). Following the dash, there are 1 or 2 letters indicating the status of the tree sampled (L is live, DL is log, SN is snag). The final number is the tree number within each plot. Six plots (N2D, N3D, S3D, S5D, S9A, and S9B) were sampled in subjective locations on the ridges north and south of the main study area and so were not included in the analysis presented in Heyerdahl et al. but are included here. Plot locations (plot ID, UTM-E (NAD27, zone 10), UTM-N (NAD27, zone 10): N1A,596662,5569729 N1B,596605,5569814 N1C,596526,5569896 N2A,596279,5569685 N2B,596296,5569784 N2C,596342,5569855 N2D,596260,5570453 N3A,595841,5569685 N3B,595802,5569795 N3C,595702,5569953 N3D,595836,5570759 N4A,595367,5569731 N4B,595273,5569873 N4C,595241,5570071 N5A,595042,5569492 N5B,594989,5569560 N5C,594923,5569671 S1A,596849,5569607 S1B,596883,5569545 S1C,596695,5569288 S2A,596484,5569464 S2B,596496,5569358 S2C,596515,5569262 S3A,596199,5569520 S3B,596169,5569414 S3C,596085,5569227 S3D,596180,5568662 S4A,595901,5569401 S4B,595923,5569275 S4C,595945,5569148 S5A,595454,5569438 S5B,595441,5569293 S5C,595428,5569147 S5D,595684,5568552 S6A,595124,5569176 S6B,595239,5569051 S7A,594973,5569072 S7B,595041,5568982 S7C,595110,5568892 S8A,594542,5568901 S8C,594495,5568792 S9A,595788,5569424 S9B,595535,5569419 Individual Tree Information (tree ID, species, status): N1A-L1,Pinus ponderosa,live N1A-L2,Pseudotsuga menziesii,live N1A-L3,Pinus ponderosa,live N1A-L4,Pinus ponderosa,live N1A-SN3,Pinus ponderosa,snag N1B-L1,Pinus ponderosa,live N1B-L2,Pinus ponderosa,live N1B-L3,Pseudotsuga menziesii,live N1B-L4,Pinus ponderosa,live N1B-L5,Pinus ponderosa,live N1C-L1,Pinus ponderosa,live N1C-L2,Pinus ponderosa,live N1C-L3,Pinus ponderosa,live N1C-L4,Pinus ponderosa,live N1C-L5,Pinus ponderosa,live N2A-L1,Pinus ponderosa,live N2A-L2,Pinus ponderosa,live N2A-L3,Pinus ponderosa,live N2A-L4,Pinus ponderosa,live N2A-L5,Pinus ponderosa,live N2B-L1,Pinus ponderosa,live N2B-L2,Pinus ponderosa,live N2B-L3,Pinus ponderosa,live N2B-L4,Pinus ponderosa,live N2B-L5,Pinus ponderosa,live N2C-L1,Pinus ponderosa,live N2C-L2,Pinus ponderosa,live N2C-L3,Pinus ponderosa,live N2C-L4,Pinus ponderosa,live N2C-L5,Pinus ponderosa,live N2D-L1,Pseudotsuga menziesii,live N2D-L2,Pseudotsuga menziesii,live N2D-L3,Pinus ponderosa,live N2D-L4,Pinus ponderosa,live N2D-SN1,Pinus ponderosa,snag N3A-L1,Pinus ponderosa,live N3A-L2,Pinus ponderosa,live N3A-L3,Pinus ponderosa,live N3A-L4,Pinus ponderosa,live N3A-L5,Pinus ponderosa,live N3B-L1,Pinus ponderosa,live N3B-L2,Pinus ponderosa,live N3B-L3,Pinus ponderosa,live N3B-L4,Pinus ponderosa,live N3B-L5,Pinus ponderosa,live N3B-SN1,Pinus ponderosa,snag N3C-L1,Pinus ponderosa,live N3C-L2,Pinus ponderosa,live N3C-L3,Pinus ponderosa,live N3C-L4,Pinus ponderosa,live N3C-L5,Pinus ponderosa,live N3D-L1,Pinus ponderosa,live N3D-L2,Pinus ponderosa,live N3D-L3,Pinus ponderosa,live N3D-L4,Pseudotsuga menziesii,live N3D-SN1,Pinus ponderosa,snag N4A-L1,Pseudotsuga menziesii,live N4A-L2,Pseudotsuga menziesii,live N4A-L3,Pinus ponderosa,live N4B-L1,Pinus ponderosa,live N4B-L2,Pinus ponderosa,live N4B-L3,Pseudotsuga menziesii,live N4B-L4,Pinus ponderosa,live N4B-L5,Pinus ponderosa,live N4C-L1,Pseudotsuga menziesii,live N4C-L2,Pinus ponderosa,live N4C-L3,Pinus ponderosa,live N4C-L4,Pseudotsuga menziesii,live N4C-L5,Pseudotsuga menziesii,live N5A-L1,Pinus ponderosa,live N5A-L2,Pinus ponderosa,live N5A-L3,Pseudotsuga menziesii,live N5A-L4,Pinus ponderosa,live N5A-L5,Pseudotsuga menziesii,live N5B-L1,Pinus ponderosa,live N5B-L2,Pinus ponderosa,live N5B-L3,Pinus ponderosa,live N5B-L4,Pinus ponderosa,live N5B-L5,Pinus ponderosa,live N5C-L1,Pinus ponderosa,live N5C-L2,Pinus ponderosa,live N5C-L3,Pinus ponderosa,live N5C-L4,Pinus ponderosa,live N5C-L5,Pinus ponderosa,live S1A-L3,Pseudotsuga menziesii,live S1A-L4,Pseudotsuga menziesii,live S1A-L5,Pseudotsuga menziesii,live S1B-L1,Pinus ponderosa,live S1B-L2,Pinus ponderosa,live S1B-L3,Pinus ponderosa,live S1B-L4,Pinus ponderosa,live S1C-L1,Pinus ponderosa,live S1C-L2,Pinus ponderosa,live S1C-L3,Pseudotsuga menziesii,live S1C-L4,Pseudotsuga menziesii,live S1C-L5,Pseudotsuga menziesii,live S2A-L1,Pseudotsuga menziesii,live S2A-L2,Pseudotsuga menziesii,live S2A-L3,Pseudotsuga menziesii,live S2A-L4,Pseudotsuga menziesii,live S2A-L5,Pseudotsuga menziesii,live S2B-L1,Pseudotsuga menziesii,live S2B-L2,Pseudotsuga menziesii,live S2B-L4,Pinus ponderosa,live S2C-L1,Pseudotsuga menziesii,live S2C-L2,Pseudotsuga menziesii,live S2C-L3,Pinus ponderosa,live S2C-L4,Pseudotsuga menziesii,live S2C-L5,Pseudotsuga menziesii,live S3A-L2,Pseudotsuga menziesii,live S3A-L3,Pinus ponderosa,live S3A-SN1,Pseudotsuga menziesii,snag S3B-L1,Pinus ponderosa,live S3B-L2,Pinus ponderosa,live S3B-L3,Pseudotsuga menziesii,live S3B-L4,Pseudotsuga menziesii,live S3B-SN2,Pseudotsuga menziesii,snag S3C-L1,Pinus ponderosa,live S3C-L2,Pseudotsuga menziesii,live S3C-L3,Pinus ponderosa,live S3C-L4,Pseudotsuga menziesii,live S3C-SN3,Pinus ponderosa,snag S3D-L1,Pinus ponderosa,live S3D-L2,Pinus ponderosa,live S3D-L4,Pinus ponderosa,live S4A-L1,Pseudotsuga menziesii,live S4A-L2,Pseudotsuga menziesii,live S4A-L4,Pseudotsuga menziesii,live S4A-L5,Pseudotsuga menziesii,live S4B-L1,Pinus ponderosa,live S4B-L2,Pinus ponderosa,live S4B-L3,Pseudotsuga menziesii,live S4B-L4,Pinus ponderosa,live S4B-L5,Pseudotsuga menziesii,live S4C-L1,Pseudotsuga menziesii,live S4C-L2,Pseudotsuga menziesii,live S4C-L3,Pseudotsuga menziesii,live S4C-L4,Pseudotsuga menziesii,live S5A-L1,Pinus ponderosa,live S5A-L2,Pinus ponderosa,live S5A-L3,Pseudotsuga menziesii,live S5A-L4,Pseudotsuga menziesii,live S5A-L5,Pseudotsuga menziesii,live S5B-L1,Pseudotsuga menziesii,live S5B-L2,Pinus ponderosa,live S5B-L3,Pseudotsuga menziesii,live S5B-L4,Pseudotsuga menziesii,live S5B-L5,Pseudotsuga menziesii,live S5C-L1,Pinus ponderosa,live S5C-L2,Pinus ponderosa,live S5C-L3,Pinus ponderosa,live S5C-L4,Pinus ponderosa,live S5C-L5,Pseudotsuga menziesii,live S5D-DL1,Pinus ponderosa,log S5D-L2,Pinus ponderosa,live S5D-L3,Pinus ponderosa,live S5D-L4,Pinus ponderosa,live S5D-L5,Pseudotsuga menziesii,live S6A-L1,Pseudotsuga menziesii,live S6A-L2,Pseudotsuga menziesii,live S6A-L3,Pseudotsuga menziesii,live S6A-L4,Pseudotsuga menziesii,live S6A-L5,Pseudotsuga menziesii,live S6B-L1,Pseudotsuga menziesii,live S6B-L2,Pseudotsuga menziesii,live S7A-L1,Pseudotsuga menziesii,live S7A-L2,Pseudotsuga menziesii,live S7A-L4,Pinus ponderosa,live S7A-L5,Pinus ponderosa,live S7B-L1,Pinus ponderosa,live S7B-L2,Pseudotsuga menziesii,live S7B-L3,Pseudotsuga menziesii,live S7B-L4,Pseudotsuga menziesii,live S7C-DL1,Pseudotsuga menziesii,log S7C-SN5,Pseudotsuga menziesii,snag S7C-SN7,Pseudotsuga menziesii,snag S8A-L1,Pseudotsuga menziesii,live S8C-L1,Pseudotsuga menziesii,live S8C-L3,Pseudotsuga menziesii,live S8C-SN1,Pseudotsuga menziesii,snag S9A-L1,Pseudotsuga menziesii,live S9A-L2,Pseudotsuga menziesii,live S9A-L3,Pseudotsuga menziesii,live S9A-L4,Pinus ponderosa,live S9B-L1,Pseudotsuga menziesii,live S9B-L3,Pseudotsuga menziesii,live S9B-L4,Pseudotsuga menziesii,live S9B-L5,Pinus ponderosa,live CORRECTION TO DATA: On June 1, 2021, a correction was made to data file calst001.fhx. REASONING: Sample S1A-L4 (column 86) contained a second start indicator as its year 1822 and 1902 both contained a '{' (inner-ring}. CORRECTION: the 1902 '{', was changed to '|' (recorder year). 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 https://www.fhaes.org for more information.