Matthew J. Germino Matthew R. Fisk Cara V. Applestein 20240904 tabular digital data ScienceBase U.S. Geological Survey https://doi.org/10.5066/P9VA06HV Matthew J. Germino Matthew R. Fisk Cara V. Applestein 20190528 publication n/a Elsevier BV Germino, M.J., Fisk, M.R., and Applestein, C.V., 2019, Bunchgrass root abundances and their relationship to resistance and resilience of a burned shrub-steppe landscape: Rangeland Ecology and Management, v. 72, no. 5, p. 783-790. https://doi.org/10.1016/j.rama.2019.04.001 https://doi.org/10.1016/j.rama.2019.04.001 Invasion of exotic annual grasses (EAG) and increased wildfire have led to an emphasis on managing rangeland plant communities for resistance to invasion and resilience to disturbances. In sagebrush steppe and similar rangelands, perennial bunchgrasses and particularly their roots are hypothesized to be primary contributors to the resistance and resilience. We asked how bunchgrass root abundance relates to annual grass invasion and aboveground indicators of bunchgrass vigor that are more readily measured, such as plant height. We used a standardized USDA protocol for root measurement in 445 excavations made in 2016-2018 across a topographically and ecologically varied region of sagebrush steppe burned in the 2015 Soda fire in the Northern Great Basin USA. Data were collected to determine the relationship of bunchgrass roots to exotic grass invasion and other growth traits associated with bunchgrass vigor 2016 2018 Ground condition Complete None planned -117.3340 -116.7078 43.4287 42.8756 Owyhee Mountains, Oregon and Idaho, USA ISO 19115 Topic Category biota environment USGS Thesaurus fires shrubland ecosystems remediation invasive species vegetation habitat alteration and disturbance fire damage None sagebrush steppe bunchgrass restoration annual grasses roots USGS Metadata Identifier USGS:5c508870e4b0708288f94fc3 GNIS Owyhee County, Idaho Common geographic areas Idaho Oregon No access constraints. No use constraints. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests to be acknowledged as originator of these data in future products or derivative research. Matthew J. Germino Forest and Rangeland Ecosystem Science Center Supervisory Research Ecologist mailing and physical

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Boise ID 83706 United States 208-221-4638 mgermino@usgs.gov P.J. Schoeneberger D.A. Wysocki E. C. Benham Soil Survey Staff 20120901 publication National Resources Conservation Service, National Soil Survey Center, Lincoln, NE, USA https://www.nrcs.usda.gov/resources/guides-and-instructions/field-book-for-describing-and-sampling-soils Bruce McCune Dylan Keon 20020704 publication McCune, B., and Keon, D., 2002, Equations for potential annual direct incident radiation and heat load, Journal of Vegetation Science, 13(4), 603-606. http://www.jstor.org/stable/3236745 https://www.jstor.org/stable/3236745 PRISM Climate Group 2016 publication Data created 4 February 2014, accessed April 2016 https://prism.oregonstate.edu Soil Survey Staff 2016 publication Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Web Soil Survey. Available online at https://websoilsurvey.nrcs.usda.gov/. Accessed April 2016. https://websoilsurvey.nrcs.usda.gov/ Manually checked by co-authors and technicians. Manually checked data for outliers. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Plot coordinates were checked against proposed plot locations in ArcPro and any discrepancies were double-checked with technician-written coordinates. Not applicable Data were collected in the field from 2016 to 2018 using tablets and ArcCollector with Survey123, accumulated in a geodatabase in the cloud, output into tables in ArcGIS and then transferred to Excel spreadsheets 2018 Root and cover data.csv Root and cover data Producer Defined PastureNam Bureau of Land Management pasture name of the plot Producer Defined Alpha text describing pasture names. PointID Identifier of the plot, links to USGS records. Producer Defined Unique plot identifiers for repeated measures AnnualRootDepth(cm) Root depth in cm of annual grass. "NA" indicates data not available. Producer Defined 0.0 22 centimeters PerennialGrassDominant USDA 4-letter code for dominant perennial grass species USDA plants, https://plants.usda.gov/ PSSP6 Pseudoroegneria spicata USDA plants, https://plants.usda.gov/ AGCR Agropyron cristatum USDA plants, https://plants.usda.gov/ AGFR Agropyron fragile USDA plants, https://plants.usda.gov/ ACHY Achnatherum hymenoides USDA plants, https://plants.usda.gov/ ACTH7 Achnatherum thurberianum USDA plants, https://plants.usda.gov/ ELEL5 Elymus elymoides USDA plants, https://plants.usda.gov/ FEID Festuca idahoensis USDA plants, https://plants.usda.gov/ None No dominant perennial bunchgrass species Producer defined POPR Poa pratensis USDA plants, https://plants.usda.gov/ POSE Poa secunda USDA plants, https://plants.usda.gov/ UNKGRASS Unknown grass producer defined SeedlingRootDepth Root depth in cm of perennial grass Producer Defined 0.0 35.0 centimeters Interspace Interspace size in centimeters Producer Defined 0.0 550.0 centimeters BasalGrass Basal diameter of subject bunchgrass in cm, first individual Producer Defined 0.0 50.0 centimeter BasalGra_1 Basal diameter of subject bunchgrass in centimeters, second individual Producer Defined 0.0 132.0 centimeters 0.5 LaterRootG Lateral root abundance class of subject perennial bunchgrass NRCS Root Abundance classifications (Schoeneberger et al. 2012) Common 1-5 roots/cm2 Schoeneberger et al. 2012 Moderate 0.2-1 roots/cm2 Schoeneberger et al. 2012 Few < 0.2 roots/cm2 Schoeneberger et al. 2012 Many > 5 roots/cm2 Schoeneberger et al. 2012 Year Year the plot was sampled Producer Defined 2016 2018 calendar year Elevation_ Elevation in meters of plot, from USGS DEM 10m pixels Producer Defined 880.27 1800.40 meters Heatload Heatload derived from elevation data, according to McCune and Keon 2002 Producer Defined -0.57 0.99 unitless 0.01 Slope Slope, from DEM Producer Defined 0.22 26.62 percent Precip Mean annual precipitation from PRISM model (800 m data) Producer defined 249.75 494.77 millimeters 0.01 taxorder Soil taxonomic order from NRCS SSURGO data (Soil Survey Staff) for the plot NRCS SSURGO Data (Soil Survey Staff) NA No soils data available for plot Producer defined Mollisols Soils that have a dark colored surface horizon relatively high in content of organic matter. Producer defined Aridisols Soils with very little organic matter, characteristics of arid regions. Producer defined Alfisols Moderately leached soils that have relatively high native fertility. Producer defined taxpartsiz Soil particle size from NRCS SSURGO data NRCS SSURGO Data (Soil Survey Staff) NA No soils data available NRCS SSURGO Data (Soil Survey Staff) clayey-skeletal Particles > 2mm occupy 35% or more but less than 90% (by volume), with enough fine earth to fill interstices larger than 1mm; the fraction <=2mm is that defined for the clayey particle-size class NRCS SSURGO Data (Soil Survey Staff) fine < 2mm fraction only NRCS SSURGO Data (Soil Survey Staff) fine-loamy A loamy particle size that has 15% or more (by weight) of fine sand (0.25-0.1 mm) or coarser particles, including fragments up to 75 mm and has 18-35% (by weight) NRCS SSURGO Data (Soil Survey Staff) loamy-skeletal Particles > 2mm occupy 35% or more but less than 90% (by volume), with enough fine earth to fill interstices larger than 1mm; the fraction <=2 mm in that defined for the loamy particle-size class Producer defined loamy The texture of fine earth includes loamy very fine sand, very fine sand, and finer textures with less than 35% clay; particles > 2mm occupy less than 35% Producer defined clayey The fine earth contains 35% of more (by weight) clay and particles > 2mm occupy less than 35% (by volume). NRCS SSURGO Data (Soil Survey Staff) tempmoistu Soil temperature/moisture regime from NRCS SSURGO data. Soil Survey Staff, 2014, Keys to soil taxonomy, 12th ed., USDA Natural Resources Conservation Service, p. 372, See page 31 (temperature regimes) and pages 29-31 (moisture regimes). Text descriptors of soil temperature and moisture categories. EAGOcular Percent cover of exotic annual grass from field data (ocular estimate). Producer Defined 0.0 95.0 percent NLCD Annual grass cover Percent cover of annual grass from before fire estimated by USGS National Land Cover Dataset. Producer Defined 4 43 percent Perennial Grass Ocular Percent cover of perennial grasses from field data (ocular estimate). Producer Defined 0.0 75.0 percent Grass tug data.csv Grass tug data 2017 Producer Defined PointID_Tug Plot sample identifier, all data in spreadsheet is for the plot shown Producer defined Unique plot identifiers for repeated measures SpeciesTug USDA 4-letter code for the species which was subjected to the "Tug" test for the respective plot USDA plants, https://plants.usda.gov/ AGCR Agropyron cristatum USDA Plants, https://plants.usda.gov/ ELEL5 Elymus elemoides USDA plants, https://plants.usda.gov/ AGFR Agropyron fragile USDA plants, https://plants.usda.gov/ PSSP6 Pseudoroegneria spicata USDA plants, https://plants.usda.gov/ ELWA2 Elymus wawawaiensis USDA plants, https://plants.usda.gov BasalDiam Basal diameter in centimeter of the individual plant subject to the "tug" test. Producer defined 0 51.5 centimeters Height Height in centimeters of the individual plant subject to the "tug" test. Producer defined 0 200 centimeters Tugged Whether or not the subject plant was uprooted in response to the tug. Producer defined yes The plant came out of the ground when tugged. producer defined no The plant did not come out of the ground when tugged. producer defined PastureName Pasture name where plot was located producer defined Alphanumeric text describing pasture names. pBS_Extended Percent cover of bare soil (ocular estimate) in 13m radius circular plot. producer defined 0 75 percent Ocular Exotic Annual Grass % Percent cover of exotic annual grass as an ocular estimate in a 13m radius circular plot. producer defined 0 85 percent Ocular Perennial Grass % Percent cover of perennial grass as an ocular estimate in a 13m radius circular plot. producer defined 2.5 75 percent GS ScienceBase U.S. Geological Survey mailing address

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Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. CSV https://doi.org/10.5066/P9VA06HV None 20240904 Forest and Rangeland Ecosystem Science Center Data Manager mailing address

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Corvallis OR 97330 US (541) 750-1030 fresc_outreach@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998