Tree monitoring data used to study the adaptability of knobcone x Monterey pine hybrids to lower-elevation, lower-quality forest sites in northwestern California

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Looney, Christopher E.
Originator: Stewart, Joseph A.E.
Originator: Wood, Katherine E.A.
Publication_Date: 2023
Title:
Tree monitoring data used to study the adaptability of knobcone x Monterey pine hybrids to lower-elevation, lower-quality forest sites in northwestern California
Geospatial_Data_Presentation_Form: raster and tabular digital data
Publication_Information:
Publication_Place: Fort Collins, CO
Publisher: Forest Service Research Data Archive
Online_Linkage: https://doi.org/10.2737/RDS-2023-0038
Description:
Abstract:
This data publication contains the data collected for a study that began in 1964, titled "Adaptability of knobcone x Monterey pine hybrids to lower-elevation, lower-quality forest sites in northwestern California". This experimental study of four tree planting test sites (East Fork Burn, Platina, Spring Gulch, and Tom Lang Gulch) was established in Siskiyou and Shasta Counties, California, on U.S. Bureau of Land Management lands. The quantitative data included in this package consist of tree survival, status, and size measured at all four sites in 1964, 1965, and 1966. These same data were also collected in 1973 for Spring Gulch and Tom Lang Gulch. Georegistered historical stem maps with digitized tree locations are also provided for Spring Gulch (1966) and Tom Lang Gulch (1965).
Purpose:
This silvicultural field trial was established in 1964 to evaluate the potential of the knobcone-Monterey hybrid pine (KMX pine, Pinus x attenuradiata) for reforesting marginal timber sites in Northern California. The field trial focused on comparing the performance of trees derived from knobcone pine (Pinus attenuata) seed sources in the Siskiyou Mountains of Oregon to knobcone pine seed sourced from Placer County, California. Hybrids were hypothesized to combine rapid juvenile growth rates with drought tolerance suitable for hot, low-elevation sites, while providing sufficient frost tolerance to withstand interior California coast range winters. While 3 of 4 study sites remain intact as of 2022, the study was only followed and measured from 1964-1973. Quantitative data from 3 of 4 test sites, spanning the 1964-1966 period, have already been published. Also included in this package are the georegistered maps used to digitize tree locations to create a spatially explicit dataset used in growth-provenance diversity analyses, based on 1966-1973 tree data for the Tom Lang Gulch and Spring Gulch test sites.
Supplemental_Information:
Some of these data were originally published by Griffin and Conkle (1967). Additional quantitative data (the smaller Platina test site [1965, 1965, 1966] and later data for Spring Gulch [1973] and Tom Lang Gulch [1973]) were subsequently incorporated into the re-analyses of Looney et al. (2023).
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19640811
Ending_Date: 19730406
Currentness_Reference:
Ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Description_of_Geographic_Extent:
Four replicates of this experimental field trial were established at four locations from north to south: East Fork Burn (Shasta County), Tom Lang Gulch (Siskiyou County), Spring Gulch (Siskiyou County), and Platina (Shasta County). The core planted area of each plantation was approximately 0.46 hectares (ha), with the exception of Platina which was 0.16 ha. The Spring Gulch plantation was adjacent to an operational planting of the KMX hybrid pine referred to by the same name, as reported in Oliver (1979). These trees were measured as part of these data, but are not part of the study plan or formal experimental design. Spring Gulch and East Fork Burn had auxiliary "large tree plots" of approximately 10-25 trees of a single seed source planted adjacent to the main plantations.


Oliver, William W. 1979. Growth and mortality of thinned knobcone x Monterey pine saplings affected by engraver beetles and a hard freeze. Research Paper PSW-RP-139. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 9 p. https://www.fs.usda.gov/research/treesearch/28836
Bounding_Coordinates:
West_Bounding_Coordinate: -124.242
East_Bounding_Coordinate: -120.63
North_Bounding_Coordinate: 42.53
South_Bounding_Coordinate: 36.5342
Bounding_Altitudes:
Altitude_Minimum: 671
Altitude_Maximum: 991
Altitude_Distance_Units: meters
Keywords:
Theme:
Theme_Keyword_Thesaurus: National Research & Development Taxonomy
Theme_Keyword: Climate change
Theme_Keyword: Ecological adaptation
Theme_Keyword: Ecology, Ecosystems, & Environment
Theme_Keyword: Forest management
Theme_Keyword: Natural Resource Management & Use
Theme_Keyword: Plant ecology
Theme_Keyword: Timber
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: biota
Theme_Keyword: climatologyMeteorologyAtmosphere
Theme_Keyword: environment
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: pine hybrids
Theme_Keyword: knobcone-Monterey hybrid pine
Theme_Keyword: Pinus x attenuradiata
Theme_Keyword: tree survival
Theme_Keyword: tree growth
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: California
Taxonomy:
Keywords/Taxon:
Taxonomic_Keyword_Thesaurus:
None
Taxonomic_Keywords: multiple species
Taxonomic_Keywords: plants
Taxonomic_Keywords: vegetation
Taxonomic_Keywords: Pinus radiata
Taxonomic_Keywords: Monterey pine
Taxonomic_Keywords: Pinus attenuata
Taxonomic_Keywords: knobcone pine
Taxonomic_Keywords: Pinus x attenuradiata
Taxonomic_System:
Classification_System/Authority:
Classification_System_Citation:
Citation_Information:
Originator: ITIS
Publication_Date: 2023
Title:
Integrated Taxonomic Information System
Geospatial_Data_Presentation_Form: on-line database
Other_Citation_Details:
Retrieved [November, 30, 2022]; CC0
Online_Linkage: https://www.itis.gov
Online_Linkage: https://doi.org/10.5066/F7KH0KBK
Taxonomic_Procedures:
Taxonomic_Classification:
Taxon_Rank_Name: Kingdom
Taxon_Rank_Value: Plantae
Applicable_Common_Name: plantes
Applicable_Common_Name: Planta
Applicable_Common_Name: Vegetal
Applicable_Common_Name: plants
Taxonomic_Classification:
Taxon_Rank_Name: Subkingdom
Taxon_Rank_Value: Viridiplantae
Applicable_Common_Name: green plants
Taxonomic_Classification:
Taxon_Rank_Name: Infrakingdom
Taxon_Rank_Value: Streptophyta
Applicable_Common_Name: land plants
Taxonomic_Classification:
Taxon_Rank_Name: Superdivision
Taxon_Rank_Value: Embryophyta
Taxonomic_Classification:
Taxon_Rank_Name: Division
Taxon_Rank_Value: Tracheophyta
Applicable_Common_Name: vascular plants
Applicable_Common_Name: tracheophytes
Taxonomic_Classification:
Taxon_Rank_Name: Subdivision
Taxon_Rank_Value: Spermatophytina
Applicable_Common_Name: spermatophytes
Applicable_Common_Name: seed plants
Applicable_Common_Name: phanérogames
Taxonomic_Classification:
Taxon_Rank_Name: Class
Taxon_Rank_Value: Pinopsida
Applicable_Common_Name: conifers
Taxonomic_Classification:
Taxon_Rank_Name: Subclass
Taxon_Rank_Value: Pinidae
Taxonomic_Classification:
Taxon_Rank_Name: Order
Taxon_Rank_Value: Pinales
Applicable_Common_Name: pines
Taxonomic_Classification:
Taxon_Rank_Name: Family
Taxon_Rank_Value: Pinaceae
Applicable_Common_Name: pines
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Pinus
Applicable_Common_Name: pine
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Pinus attenuata
Applicable_Common_Name: knobcone pine
Applicable_Common_Name: chichonuda
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Pinus radiata
Applicable_Common_Name: insignis pine
Applicable_Common_Name: pino quebradizo
Applicable_Common_Name: Monterey pine
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Pinus X attenuradiata
Access_Constraints: None
Use_Constraints:
These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

Looney, Christopher E.; Stewart, Joseph A.E.; Wood, Katherine E.A. 2023. Tree monitoring data used to study the adaptability of knobcone x Monterey pine hybrids to lower-elevation, lower-quality forest sites in northwestern California. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2023-0038
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Pacific Southwest Research Station
Contact_Person: Christopher Looney
Contact_Position: Research Forester
Contact_Address:
Address_Type: mailing and physical
Address: 1731 Research Park Dr.
City: Davis
State_or_Province: CA
Postal_Code: 95618
Country: USA
Contact_Voice_Telephone: 530-601-7889
Contact_Electronic_Mail_Address: christopher.looney@usda.gov
Contact Instructions: This contact information was current as of original publication date. For current information see Contact Us page on: https://doi.org/10.2737/RDS.
Data_Set_Credit:
Funding for this project provided by the USDA Forest Service, Pacific Southwest Research Station.

The original PIs, James Griffin, and co-PI, M. Thompson Conkle, oversaw study design, implementation, and data collection. Bill Sundahl, Bill Oliver, Robert Powers, Phil McDonald, R. Rappley, and unnamed members of BLM crews helped collect the original field data and maintain the study. Bill Oliver curated physical records associated with this study. Erin Estrada and Carol Shestak helped locate and digitize paper data records.


Author Information:

Christopher E. Looney
USDA Forest Service, Pacific Southwest Research Station
https://orcid.org/0000-0002-3645-8406

Joseph A.E. Stewart
University of California, Davis
https://orcid.org/0000-0001-5915-6892

Katherine E.A. Wood
USDA Forest Service, Pacific Southwest Research Station
Cross_Reference:
Citation_Information:
Originator: Griffin, James R.
Originator: Conkle, M. Thompson
Publication_Date: 1967
Title:
Early Performance of Knobcone x Monterey Pine Hybrids...on marginal timber sites
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Research Note
Issue_Identification: PSW-RN-156
Publication_Information:
Publication_Place: Berkeley, CA
Publisher: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
Other_Citation_Details:
10 p.
Online_Linkage: https://www.fs.usda.gov/research/treesearch/37888
Cross_Reference:
Citation_Information:
Originator: Looney, Christopher E.
Originator: Stewart, Joseph A.E.
Originator: Wood, Katherine E.A.
Publication_Date: 2023
Title:
Mixed-provenance plantings and climatic transfer-distance affect the early growth of knobcone-Monterey hybrid pine, a fire-resilient alternative for reforestation
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: New Forests
Issue_Identification: 308: 128
Online_Linkage: https://doi.org/10.1007/s11056-023-09991-9
Online_Linkage: https://www.fs.usda.gov/research/treesearch/66607
Cross_Reference:
Citation_Information:
Originator: Oliver, William W.
Publication_Date: 1979
Title:
Growth and mortality of thinned knobcone x Monterey pine saplings affected by engraver beetles and a hard freeze
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Research Paper
Issue_Identification: PSW-RP-139
Publication_Information:
Publication_Place: Berkeley, CA
Publisher: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
Other_Citation_Details:
9 p.
Online_Linkage: https://www.fs.usda.gov/research/treesearch/28836
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Measurement accuracy is not known for these data, but tree heights were measured to the nearest inch (in) in 1964, nearest centimeter (cm) in 1965-1966, and nearest 0.1 foot (ft) in 1973.
Logical_Consistency_Report:
The data are logically consistent. The consistency was verified as part of the quality assurance that occurred during data analysis.

We can't attest to quality assurance given the historical nature of the data and lack of quality assurance/quality control (QA/QC) procedures in the historical plans and reports. Electronic data entry was cross-checked against original datasheets, and in the case of a few outliers, data entry mistakes were identified and reconciled with the raw data. For the analysis, we used statistical residuals and outlier analyses and did not identify any outliers suggesting QA/QC problems. Mortality numbers (a categorical vs. quantative measure) were scrutinized very carefully and verified against maps, field notes, and subsequent years of data. Dead trees were confirmed to have been dropped from the study in subsequent years, confirming our classification of trees as alive or dead. Some fields like comments sections contain typos and were entered verbatim as per the raw data sheets.

NOTE: Data from the Spring Gulch test site may be easily confused with sites referenced in Oliver (1979), which publishes the results of experimental thinning of knobcone x Monterey hybrids. The two plantations at this site are adjacent but distinctly different in purpose. Griffin and Conkle's test site served as a provenance trial of Oregon-sourced hybrids and is included in these data. Oliver’s (1979) study thinned an adjacent operational planting of California-sourced hybrids.


Griffin, James R.; Conkle, M. Thompson. 1967. Early Performance of Knobcone x Monterey Pine Hybrids...on marginal timber sites. Res. Note PSW-RN-156. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 10 p. https://www.fs.usda.gov/research/treesearch/37888

Oliver, William W. 1979. Growth and mortality of thinned knobcone x Monterey pine saplings affected by engraver beetles and a hard freeze. Research Paper PSW-RP-139. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 9 p. https://www.fs.usda.gov/research/treesearch/28836
Completeness_Report:
Missing height measurements signify dead or missing trees. These are denoted as blank values. A limited number of trees could not be 100% positively re-identified due to missing tags. Tree diameters were apparently not collected prior to 1973, and then only for a few select trees at Spring Gulch and Tom Lang Gulch.

Data were consistently collected for all 4 plantations in 1964, 1965, and 1966. Data have not been found for the East Fork Burn and Platina sites for 1973. Whether these data were not collected or went missing is unknown, but the orignal principal investigator, James Griffin, transitioned from the Forest Service (Pacific Southwest) to academia by this point in time.

Tree identification relied upon a combination of tree tags, initially ground tags and later branch tags, as well as relative tree positions. In the event a tag went missing, relative tree positions were used to reconstruct tree IDs. At the East Fork Burn plantation, a number of trees had missing tags but could not be confidently identified based on location due to erratic planting operations leading to converging planting rows (Robert F. Powers, personal observation). Trees with uncertain IDs were denoted with "?" in the data. These represent 12 trees at Tom Lang Gulch, 23 trees at East Fork Burn, 0 trees at Platina, and 2 trees at Spring Gulch. In most cases, missing tree numbers could be deduced from non-missing neighbor tags in a given 4-5 tree plantings of a given seed lot, but other "?" trees have been dropped from these data.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
A single GPS location has been collected at approximately the center of each of the four test sites. Public Lands Survey System descriptions for Spring Gulch were found to be inaccurate by approximately 1/2 mile, leading to a discrepancy between the new geospatial data and historical records and publications.

Tree locations in the Spring Gulch and Tom Lang Gulch test site maps were found to have minor absolute distortions during georegistering and comparison with sub-meter (m) GPS readings (modern GPS collected with 0.6 m accuracy), but were highly accurate in terms of relative tree positions. Location accuracy of study test sites represents the approximate center of each plantation, collected during field visits in 2022.
Lineage:
Methodology:
Methodology_Type: Field
Methodology_Description:
STUDY DESIGN
(This information is pulled directly from Looney et al. (2023), which also contains additional methodology details.)

Knobcone pines were sourced from five provenances: four on the Siskiyou National Forest (NF) in Oregon and one from an upslope canyon position on metasedimentary soils on the Eldorado NF in California. Of the Oregon provenances, Red Flats was coastal serpentine soil, Peasoup Campground and Chrome Ridge were rocky serpentine ridgetop, and Briggs Valley was colluvial canyon bottom. Seed was collected from 7 to 13 trees for each Oregon provenance, while only a single parent tree was sampled for the Eldorado NF provenance. In addition to the hybrids, a single pure knobcone pine seed lot, corresponding with one of the serpentine ridgetop provenances, was grown as a pure-species reference.

All test sites besides Platina followed a randomized complete block experimental design. Each test site was divided into four experimental blocks based on similar within-site growing conditions. Within each block, each of 48 distinct genetic combinations, representing KMX pine families sourced from 5 knobcone pine seed parent provenances and 2 pure-species parent checks of pure knobcone and Monterey pine, were randomly assigned to a 4-tree plot for a total of 192 plots per test site. The spatial arrangement of each seed lot plot was typically linear but varied to square. At Platina, seedlings from seed lots 8, 10, 15, 21, 22, 24, 27, 30, 31, 37, 40, 41, 42, and 43 each were randomly assigned to one of 14 rectangular tree plots ranging in size from 11 to 27 trees. Planted acreage was approximately 0.45 ha at each full site, while Platina measured approximately 0.16 ha. Planting spacing was 2.4 m x 2.4 m (1681 trees per ha) across all test sites in order to match the small available land area.

At Tom Lang Gulch, woodland oak and pine species were harvested, while salvage logging removed snags and a survivor knobcone pine from East Fork Burn. Site preparation at all test sites consisted of bulldozing and windrowing competing chaparral vegetation. Shrub layer recovery was limited through 1966 at all test sites and remained so in 1973 at Spring Gulch and Tom Lang Gulch (Robert F. Powers, personal observation). Bare-root seedlings were lifted and planted over a two-week period with the assistance of a “Little Beaver” machine. Crews deployed poisoned grain and installed wicker wire cages over seedlings to reduce animal damage. Cages were removed after 2–3 growing seasons, but not before some physical constriction of seedlings occurred.


HEIGHT

Height in 1964 was initially measured in centimeters from 1964-1966, with subsequent measurements at Tom Lang and Spring Gulch in 1973 taken in U.S. feet. Photographic evidence indicates heights were collected with height poles. Heights were generally not collected on dead trees. By 1973, trees would have been tall enough to often require height measurements by distance and angle measurement.


STATUS

Trees were assessed for various damaging agents, particularly western gall rust, as well as cursory measurements of phenology. Trees were assessed for qualitative vigor in 1964-1965.


LOCATION

Trees at Spring Gulch were mapped in 1966, and at East Fork in 1965. Map diagrams show planting positions by tree number (block - seed lot - replicate format), with "D" denoting dead trees. Trees would have been manually surveyed, likely by Bill Oliver who had a surveying background.


WINTER DAMAGE

Trees at Spring Gulch and Tom Lang Gulch were surveyed for winter damage following a heavy frost in 1972.


For additional details, see Looney et al. (2023).
Methodology_Citation:
Citation_Information:
Originator: Looney, Christopher E.
Originator: Stewart, Joseph A.E.
Originator: Wood, Katherine E.A.
Publication_Date: 2023
Title:
Mixed-provenance plantings and climatic transfer-distance affect the early growth of knobcone-Monterey hybrid pine, a fire-resilient alternative for reforestation
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: New Forests
Issue_Identification: 308: 128
Online_Linkage: https://doi.org/10.1007/s11056-023-09991-9
Online_Linkage: https://www.fs.usda.gov/research/treesearch/66607
Source_Information:
Source_Citation:
Citation_Information:
Originator: Griffin, James R.
Originator: Conkle, M. Thompson
Publication_Date: 1967
Title:
Early Performance of Knobcone x Monterey Pine Hybrids...on marginal timber sites
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Research Note
Issue_Identification: PSW-RN-156
Publication_Information:
Publication_Place: Berkeley, CA
Publisher: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station
Other_Citation_Details:
10 p.
Online_Linkage: https://www.fs.usda.gov/research/treesearch/37888
Type_of_Source_Media: personal communication
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1964
Ending_Date: 1966
Source_Currentness_Reference:
Publication Date
Source_Citation_Abbreviation:
Griffin and Conkel (1967)
Source_Contribution:
Data from East Fork Burn, Spring Gulch, and Tom Lang Gulch from 1964-1967 were passed down and are included in this package.
Process_Step:
Process_Description:
TREE MEASUREMENTS

Minimal alterations were made to the tree measurement data, consisting of a single conversion from U.S. feet (ft) to centimeters (cm) for 1973 tree heights: 1 ft = 30.48 cm.
Process_Date: Unknown
Process_Step:
Process_Description:
GEOREFERENCING

Tree stem maps for Tom Lang Gulch and Spring Gulch were scanned to create digital copies. Based on a combination of satellite imagery and sub-meter GPS measurements taken on-site, stem maps were georeferenced in Esri ArcGIS Pro version 2.7. These georeferencing steps revealed minor distortions in the original survey, likely introduced by steep terrain.
Process_Date: Unknown
Process_Step:
Process_Description:
DATA COMPILATION

Prior to compilation, data formats for each site and measurement year (1965-1966) were standardized to have a common set of fields to permit easy concatenation. The “Site” column was added based on dataset name. The “Block” and “seed_lot” fields were derived from the “Tag” field, which generally followed the format of Block-Tag-Tree# (exceptions being East Fork Burn in 1964 and Platina in all years). Cases where “Block” identifiers were missing and Tree tag numbers exceeded 5 denoted auxiliary plantings of “large tree plots” that were dropped from the compiled data. In some cases, tree tags and confusing planting arrangements deviating from planned planting locations meant trees could not be positively identified in the field and were denoted with “?” in the original data. In many cases the identity of these trees was evident based on neighboring tree tag numbers or through the process of elimination. However, measurements that could not be confidently attributed to a tree tag were dropped from these compiled data. The following numbers of trees were ultimately dropped from the compiled data due to lack of positive identifiers: Tom Lang Gulch: 10 trees in 1964, 11 trees in 1965, 11 trees in 1966, 9 trees in 1973; Spring Gulch: 2 trees in 1964; 2 trees in 1965, 2 trees in 1966, 2 trees in 1973; Platina: 0 trees in 1964, 0 trees in 1965, and 9 trees in 1966; East Fork Burn: 20 trees in 1964, 11 trees in 1965, and 0 trees in 1966.
Process_Date: Unknown
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Point
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 10
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -123
Latitude_of_Projection_Origin: 0
False_Easting: 500000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate Pair
Coordinate_Representation:
Abscissa_Resolution: 0.02805086185102743
Ordinate_Resolution: 0.032230066878971196
Planar_Distance_Units: Meters
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 10
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -123
Latitude_of_Projection_Origin: 0
False_Easting: 500000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate Pair
Coordinate_Representation:
Abscissa_Resolution: 0.026793738457374445
Ordinate_Resolution: 0.030335653762068423
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.0000
Denominator_of_Flattening_Ratio: 298.25722210
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Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Below you will find a list and description of the files included in this data publication.


VARIABLE DESCRIPTION FILE (1)

1. \Data\_variable_descriptions.csv: Comma-separated values (CSV) file containing a list and description of variables found in all data files. (A description of these variables is also provided in the metadata below.)

Columns include:

Filename = name of data file
Variable = name of variable
Units = units (if applicable)
Precision = precision (if applicable)
Description = description of variable


DATA FILES (5)

1. \Data\KMX_hybrid_compiled_pine_tree_data.csv = CSV file containing tree data for the four plantation sites on U.S. Bureau of Land Management (BLM) lands in the Klamath Mountains, California. Data for all four plantations are available from 1964-1966 and 1973 data provided for Spring Gulch and Tom Lang Gulch. (This file contains 9344 observations [trees]: 2422 for East Fork Bun, 739 for Platina, 3299 for Spring Gulch and 2884 for Tom Lang Gulch.)

Variables include:

Site = Planting test site (East Fork Burn, Platina, Spring Gulch, Tom Lang Gulch)

Block = Within-site planting block (1-4), controlling for areas of similar growing conditions. Note that the Platina test site does not have any blocks, only randomized assignment of seed lots to larger plots.

Seed_lot = Seed lot (1-45, R = Monterey [radiata] pine parent check, K = knobcone pine parent check, E = El Dorado NF hybrid). For seed lots 1-45 and E, seed lot signifies the seed parent (knobcone pine) origin. For seed lots R and K, seed lot signifies the origin of wind-pollinated, single-species parent checks.

Tag = Tree tag (unique within a site but repeating across Spring Gulch, Tom Lang Gulch, and East Fork Burn). The format is: Block#_Seedlot#_Tree# at all sites and years except Platina and East Fork Burn. At Platina, the format is: tree # - seed lot. Note that prior to 1965, trees were not consistently assigned a unique tree number per block + seed lot combination at sites besides Platina.

Vigor = Vigor is assessed in 1964 and 1965 only. Some trees have multiple ratings. (For lack of documentation, this may have reflected the ratings of two different field technicians.) Values are as follows:
V = vigorous
M = mediocre
P = poor
D = dead

Status = Status of tree (0 = live, 1 = dead [with death coded as an event]. Status was derived from a combination of comments, vigor rating (1964-1965), and the presence or absence of height measurements.

Year = Year of measurement (1964, 1965, 1966, 1973). Measurements besides 1964 (late summer) were conducted in the spring around April. Measurements for 1973 are only available for Spring Gulch and Tom Lang Gulch.

Height_cm = Total height above ground level in centimeters. The precision of this variable varies. For 1964, inch-scale measurements (precise to the nearest 0.1 inch) were converted to centimeters. Measurements for 1965-1966 were made to the nearest whole centimeter. For 1973 measurements, trees were measured to the nearest 0.1 ft and converted to centimeters. Please note that a "D" in the data means dead.

Remarks = Notes about trees in the data, particularly noting deviations during planting, damages, and phenology. Not all of these are clearly interpretable but have been copied verbatim.

Winter_damage_1973 = Rating severity of winter damage following a deep frost in 1972. A blank rating indicates the tree was not subject to winter damage in this event. Damaged trees received ratings ranging from 1 (light) to 5 (heavy).


2. \Data\KMX_hybrid_provenance_table.csv: CSV file containing KMX hybrid pine seed parent (knobcone pine) and Monterey pine (pollen parent) sources. (This file contains 48 observations [seed lots].)

Variables include:

Seed_lot = Seed lot (1-45, R = Monterey [radiata] pine parent check, K = knobcone pine parent check, E = El Dorado NF hybrid). For seed lots 1-45 and E, seed lot signifies the seed parent (knobcone pine) origin. For seed lots R and K, seed lot signifies the origin of wind-pollinated, single-species parent checks.

Type = Type of seed (Eldorado_NF_hybrid, Knobcone_pine, Monterey_pine, R6_hybrid)

PLSS_baseline_and_meridian = Public Land Survey System information (Willamette Baseline and Meridian, Mount Diablo Baseline and Meridian, or NA = not applicable)

TRS = Township-range-section (S18 T35S R8W, S23 T11N R12E, S31 T37S R13W, S34 T36S R8W, S8 T36S R8W, NA = not applicable)

LAT = Latitude (decimal degrees)

LON = Longitude (decimal degrees)

Elevation(ft) = Elevation (feet)

Site = Name of provenance site (Briggs valley, Chrome Ridge, Eldorado, Monterey pine, Peasoup Campground, R6_knobcone, Red Flats)

District = Name of ranger district (Chetco RD, Galice RD, Placerville RD, Likely private lands)

Forest = Name of forest (Eldorado, Siskiyou, NA = not applicable)

Region = Region (R5, R6)

Landform = Type of landform (drainage bottom, flat, Ridgetop, Unknown)

Soil type = Type of soil (normal, serpentine)


3. Data\KMX_hybrid_SG_TLG_pine_tree_coordinates.csv = CSV file containing geographic coordinates of individual hybrid pines with projected coordinates as per NAD 1983 UTM Zone 10N EPSG 29610, for trees alive as of 1966 at Spring Gulch and trees alive as of 1965 at Tom Lang Gulch. (This file contains 1300 observations [trees]: 765 for Spring Gulch and 535 for Tom Lang Gulch. These tree locations were extracted from the geoTIFFs via a digitized shapefile overlay.)

Variables include:

Site = Planting test site (Spring Gulch, Tom Lang Gulch)

Tag = Tree tag (unique within a site but repeating across Spring Gulch, Tom Lang Gulch). The format is: Block#_Seedlot#_Tree#. Note that prior to 1965, trees were not consistently assigned a unique tree number per block + seed lot combination.

utm_x = Universal Transverse Mercator (UTM) easting (x) coordinate (meters)

utm_y = Universal Transverse Mercator (UTM) northing (y) coordinate (meters)


4. \Data\Stem_maps\Tom_Lang_Gulch_stem_map_georegistered.tif = Georeferenced TIF (GeoTIFF) raster file (and associated files) containing a map diagram of the Tom Lang Gulch plantation as of summer 1965. Map projection is NAD 1983 UTM Zone 10N EPSG 29610.


5. \Data\Stem_maps\Spring_Gulch_stem_map_georegistered.tif = GeoTIFF raster file (and associated files) containing map diagram of the Spring Gulch plantation as of summer 1966. Map projection is NAD 1983 UTM Zone 10N EPSG 29610.



SUPPLEMENTAL FILES (4)

1. \Supplements\Establishment_report.pdf: Portable Document Format (PDF) file containing the April 1964 Establishment Report: "Adaptibility of knobcone X Monterey pine hybrids to lower elevation, lower quality forest sites in northwestern California".

2. \Supplements\First_progress_report.pdf: PDF file containing the December 1964 Progress Report on "Adaptibility of knobcone X Monterey pine hybrids to lower elevation, lower quality forest sites in northwestern California".

3. \Supplements\Second_progress_report.pdf: PDF file containing the January 1966 Progress Report on "Adaptibility of knobcone X Monterey pine hybrids to lower elevation, lower quality forest sites in northwestern California".

4. \Supplements\Study_Plan.pdf: PDF file containing the November 1963 Study Plan for testing "Adaptibility of knobcone X Monterey pine hybrids to lower elevation, lower quality forest sites in northwestern California". This file also includes a map and handwritten notes regarding the layout of the study.
Entity_and_Attribute_Detail_Citation:
Looney, Christopher E.; Stewart, Joseph A.E.; Wood, Katherine E.A. 2023. Mixed-provenance plantings and climatic transfer-distance affect the early growth of knobcone-Monterey hybrid pine, a fire-resilient alternative for reforestation. New Forests. 308: 128. https://doi.org/10.1007/s11056-023-09991-9 and https://www.fs.usda.gov/research/treesearch/66607

Griffin, James R.; Conkle, M. Thompson. 1967. Early performance of knobcone x Monterey pine hybrids...on marginal timber sites. Research Note PSW-RN-156. Berkeley, CA: USDA Forest Service, Pacific Southwest Forest and Range Experiment Station. 10 p. https://www.fs.usda.gov/research/treesearch/37888
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Contact_Organization: USDA Forest Service, Research and Development
Contact_Position: Research Data Archivist
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Address_Type: mailing and physical
Address: 240 West Prospect Road
City: Fort Collins
State_or_Province: CO
Postal_Code: 80526
Country: USA
Contact_Voice_Telephone: see Contact Instructions
Contact Instructions: This contact information was current as of November 2023. For current information see Contact Us page on: https://doi.org/10.2737/RDS.
Resource_Description: RDS-2023-0038
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Metadata documents have been reviewed for accuracy and completeness. Unless otherwise stated, all data and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. However, neither the author, the Archive, nor any part of the federal government can assure the reliability or suitability of these data for a particular purpose. The act of distribution shall not constitute any such warranty, and no responsibility is assumed for a user's application of these data or related materials.

The metadata, data, or related materials may be updated without notification. If a user believes errors are present in the metadata, data or related materials, please use the information in (1) Identification Information: Point of Contact, (2) Metadata Reference: Metadata Contact, or (3) Distribution Information: Distributor to notify the author or the Archive of the issues.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Format_Version_Number: see Format Specification
Format_Specification:
Comma-separated values file
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.2737/RDS-2023-0038
Digital_Form:
Digital_Transfer_Information:
Format_Name: TIFF
Format_Version_Number: see Format Specification
Format_Specification:
Georeferenced (GeoTIFF) raster file (and associated files)
Digital_Transfer_Option:
Online_Option:
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Network_Resource_Name: https://doi.org/10.2737/RDS-2023-0038
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Metadata_Reference_Information:
Metadata_Date: 20231117
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Pacific Southwest Research Station
Contact_Person: Christopher Looney
Contact_Position: Research Forester
Contact_Address:
Address_Type: mailing and physical
Address: 1731 Research Park Dr.
City: Davis
State_or_Province: CA
Postal_Code: 95618
Country: USA
Contact_Voice_Telephone: 530-601-7889
Contact_Electronic_Mail_Address: christopher.looney@usda.gov
Contact Instructions: This contact information was current as of original publication date. For current information see Contact Us page on: https://doi.org/10.2737/RDS.
Metadata_Standard_Name: Content Standard for National Biological Information Infrastructure Metadata
Metadata_Standard_Version: FGDC-STD-001.1-1999
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