Name: Threat Based Ecostates (Biome wide 2021 to 2023)
Display Field: Ecostate_N
Type: Raster Layer
Geometry Type: null
Description: This Threat-Based Ecostate map (Version 4) provides a spatial depiction of rangeland condition over a 3-year average across all rangelands throughout the sagebrush biome of the western United States. The map is based on the principles of Threat-Based Land Management (Johnson et al 2019; see https://sageshare.org/) as a framework to identify and address the primary threats to sagebrush ecosystems of the northern Great Basin. Rangeland condition is described by ecological states (ecostates) that express current upland vegetation composition and level of threat from wildfire, invasive annual grasses, and juniper encroachment based on the cover of key rangeland functional groups and the severity of threats present. Ecostates are determined based on a rolling three-year average of percent cover of annual forbs & grasses (AFG), perennial forbs & grasses (PFG), shrubs, and trees from the Rangeland Analysis Platform vegetation cover products, version 3 (https://rangelands.app/; Allred et al 2021). The rule set used to define each ecostate is provided in the attribute table. This raster covers all rangelands throughout the sagebrush biome. Non-rangeland pixels, including agriculture, barren areas and urban areas are excluded. Pixels are 30m x 30m and projected usinb WGS 1984.
Service Item Id: 4063a19a6d4a4751a98b7e076d04ca27
Copyright Text: Ecostate maps were built by the Institute for Natural Resources, Oregon State University, in June 2024 using Esri ArcGIS Pro 3.1.0. Vegetation cover maps used as the basis for this mapping were provided by the Rangeland Analysis Platform (https://rangelands.app/; Allred et al 2021). Citation: Allred, BW, et al. 2021. Improving Landsat predictions of rangeland fractional cover with multitask learning and uncertainty. Methods in Ecology and Evolution. https://doi.org/10.1111/2041-210X.13564.
Description: This map delineates modified Core Sagebrush Areas and Growth Opportunity Areas in the state of Oregon based on the methodology outlined in the Doherty et al 2022 report “A Sagebrush Conservation Design to Proactively Restore America’s Sagebrush Biome” (https://pubs.usgs.gov/of/2022/1081/ofr20221081.pdf). These areas are intended to help partners in Oregon identify areas with large landscapes of intact sagebrush rangelands to implement proactive management under the strategy of “defend and grow the core”.The modifications in this Oregon-specific map include:i. Analysis focused solely on Core Sagebrush Areas and Growth Opportunity Areas in Oregon and does not include Other Rangelandsii. Converted the original dataset from raster to polygon to generalize the boundariesiii. Removal of small or disconnected Core Sagebrush Areas and Growth Opportunity Areasiv. Reclassification of the Cinder Butte fire area from Other Rangeland to Growth Opportunity Area based on local knowledge and post-fire monitoring data showing a positive trendv. Reclassification of moderate-high resistance & resilience areas in the Trout Creek Mountains from Other Rangeland to Growth Opportunity Areavi. Removal of Jordan Craters as a non-vegetated landscape
Metadata
https://oe.oregonexplorer.info/externalcontent/sagecon/metadata/SCD_Core_Growth_OR_2022.xml
Download
https://oe.oregonexplorer.info/externalcontent/sagecon/datafordownload/SCD_Core_Growth_OR_2022.zip
Service Item Id: 4063a19a6d4a4751a98b7e076d04ca27
Copyright Text: Layer was created in November 2022 at the Institute for Natural Resources
Description: This layer was created using the Rangeland Analysis Platform version 3 vegetation cover data band for annual forbs and grasses from 2023 (https://rangelands.app/; Allred et al 2021). Data is masked to Eastern Oregon rangelands. The layer is projected using the NAD 1983 Oregon Statewide Lambert (Meters) conformal conic coordinate system and the pixels are 30m by 30m.
Copyright Text: Layer was created at the Institute for Natural Resources in May 2024 using Rangeland Analysis Platform version 3 vegetation cover data (https://rangelands.app/; Allred et al 2021.)
Description: This layer was created using the Rangeland Analysis Platform version 3 vegetation cover data band for perennial forbs and grasses from 2023 (https://rangelands.app/; Allred et al 2021). Data is masked to Eastern Oregon rangelands. The layer is projected using the NAD 1983 Oregon Statewide Lambert (Meters) conformal conic coordinate system and the pixels are 30m by 30m.
Service Item Id: 4063a19a6d4a4751a98b7e076d04ca27
Copyright Text: Layer was created at the Institute for Natural Resources in May 2024 using Rangeland Analysis Platform version 3 vegetation cover data (https://rangelands.app/; Allred et al 2021.)
Description: This layer was created using the Rangeland Analysis Platform version 3 vegetation cover data band for shrubs from 2023 (https://rangelands.app/; Allred et al 2021). Data is masked to Eastern Oregon rangelands. The layer is projected using the NAD 1983 Oregon Statewide Lambert (Meters) conformal conic coordinate system and the pixels are 30m by 30m.
Copyright Text: Layer was created at the Institute for Natural Resources in May 2024 using Rangeland Analysis Platform version 3 vegetation cover data (https://rangelands.app/; Allred et al 2021.)
Description: This layer was created by masking the Rangeland Condition Monitoring Assessment and Projection (RCMAP) Sagebrush percent cover raster to Eastern Oregon rangelands. For more information about the RCMAP data products, see https://www.mrlc.gov/data/type/rcmap-time-series-trends
Service Item Id: 4063a19a6d4a4751a98b7e076d04ca27
Copyright Text: Rigge, M.B., Bunde, B., Shi, H., Postma, K., 2021, Rangeland Condition Monitoring Assessment and Projection (RCMAP) Fractional Component Time-Series Across the Western U.S. 1985-2020 (ver. 2.0, October 2021): U.S. Geological Survey data release, https://doi.org/10.5066/P95IQ4BT.
Description: This layer was created using the Rangeland Analysis Platform version 3 vegetation cover data band for trees from 2023 (https://rangelands.app/; Allred et al 2021). Data is masked to Eastern Oregon rangelands. The layer is projected using the NAD 1983 Oregon Statewide Lambert (Meters) conformal conic coordinate system and the pixels are 30m by 30m.
Service Item Id: 4063a19a6d4a4751a98b7e076d04ca27
Copyright Text: Layer was created at the Institute for Natural Resources in May 2024 using Rangeland Analysis Platform version 3 vegetation cover data (https://rangelands.app/; Allred et al 2021.)
Description: This layer was created using the Rangeland Analysis Platform version 3 vegetation cover data band for bare ground from 2022 (https://rangelands.app/; Allred et al 2021). Data is masked to Eastern Oregon rangelands. The layer is projected using the NAD 1983 Oregon Statewide Lambert (Meters) conformal conic coordinate system and the pixels are 30m by 30m.
Service Item Id: 4063a19a6d4a4751a98b7e076d04ca27
Copyright Text: Layer was created at the Institute for Natural Resources in April 2023 using Rangeland Analysis Platform version 3 vegetation cover data (https://rangelands.app/; Allred et al 2021.)
Description: Resilience and resistance (R&R) maps identify broad soil types and climatic conditions that influence resistance to invasive annual grasses and recovery potential after disturbance, based on the concepts in Chambers et al 2014 (https://www.fs.usda.gov/research/treesearch/46329 ). This layer is an updated R&R map for Oregon provided by the NRCS West National Technology Support Center in August 2020, which included more recent soil surveys for Oregon (draft SSURGO data were used for parts of Crook, Grant, Malheur, and Wheeler Counties).