2026 Draft Fire Frequency Version 4 SE Blueprint
收藏US Fish and Wildlife Service Open Data2026-04-11 收录
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<div style='background-color:rgb(255, 255, 255); color:rgb(0, 0, 0); font-family:"Segoe UI", "Segoe UI Web", Arial, Verdana, sans-serif; font-size:12px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; margin:0px; padding:0px; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;'><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:rgb(102, 102, 102); font-kerning:none; font-style:normal; margin:16px 0px 5.33333px; padding:0px; text-align:left; text-indent:0px;'><span style='color:rgb(102,102,102); font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:12pt;'><span style='font-variant-ligatures:none !important; line-height:19.425px; margin:0px; padding:0px;'><strong>Reason for Selection</strong></span><span style='line-height:19.425px; margin:0px; padding:0px;'><strong> </strong></span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Historically in the South, “fires burned as often as once a year or more in Coastal Plain pine systems or as infrequently as every 50 years or more on north-facing or cove sites in the mountains” (Waldrop and Goodrick 2012). Fires were typically started by lightning or by Indigenous Americans using fire to manage open savannas. Species adapted to the specific fire return interval, or average time between fires, that typically occurred in a given area. The term “fire regime” is often used to describe historical pattern of fire, including frequency and severity. </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Ecosystems that experienced regular fire over time—such as grasslands and longleaf pine savannas—evolved into systems characterized by many species that not only tolerate </span><span style='background-image:url("data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPHN2ZyB3aWR0aD0iNXB4IiBoZWlnaHQ9IjNweCIgdmlld0JveD0iMCAwIDUgMyIgdmVyc2lvbj0iMS4xIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIj4KICAgIDwhLS0gR2VuZXJhdG9yOiBTa2V0Y2ggNTUuMiAoNzgxODEpIC0gaHR0cHM6Ly9za2V0Y2hhcHAuY29tIC0tPgogICAgPHRpdGxlPmdyYW1tYXJfZG91YmxlX2xpbmU8L3RpdGxlPgogICAgPGRlc2M+Q3JlYXRlZCB3aXRoIFNrZXRjaC48L2Rlc2M+CiAgICA8ZyBpZD0iZ3JhbW1hcl9kb3VibGVfbGluZSIgc3Ryb2tlPSJub25lIiBzdHJva2Utd2lkdGg9IjEiIGZpbGw9Im5vbmUiIGZpbGwtcnVsZT0iZXZlbm9kZCIgc3Ryb2tlLWxpbmVjYXA9InJvdW5kIj4KICAgICAgICA8ZyBpZD0iR3JhbW1hci1UaWxlLUNvcHkiIHN0cm9rZT0iIzMzNTVGRiI+CiAgICAgICAgICAgIDxwYXRoIGQ9Ik0wLDAuNSBMNSwwLjUiIGlkPSJMaW5lLTItQ29weS0xMCI+PC9wYXRoPgogICAgICAgICAgICA8cGF0aCBkPSJNMCwyLjUgTDUsMi41IiBpZD0iTGluZS0yLUNvcHktMTEiPjwvcGF0aD4KICAgICAgICA8L2c+CiAgICA8L2c+Cjwvc3ZnPg=="); background-position:0px 100%; background-repeat:repeat-x; border-bottom:1px solid transparent; font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>fire, but</span><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> require it. Fire suppression during the 20</span></span><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:8.5pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'><sup>th</sup></span></span><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> century led to the loss and deterioration of many fire-adapted ecosystems and their associated wildlife and plant species. For example, the federally threatened red-cockaded woodpecker is considered an umbrella species for longleaf ecosystems and has suffered population declines due to losses of suitable habitat attributed in part to fire suppression (USFWS 2022). Additionally, the endangered species recovery plan for the Alabama canebrake pitcher plant, which is only found in wetland areas, explicitly identifies fire exclusion as a severe threat to this species (USFWS 1992).</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>When natural disturbance processes are disrupted, regeneration tends to follow a shrub and mixed hardwood trajectory in which a return to a savanna or longleaf dominated system is unlikely (Hartnett and Krofta 1989). Furthermore, prolonged fire suppression can also lead to increased fuel loads, and with it, the threat of catastrophic wildfire. Today, practices that mimic historical disturbance, such as fire, are recognized for their essential role in maintaining healthy ecosystems and reducing wildfire risk. As a result, “prescribed burning is an important tool throughout Southern forests, grasslands, and croplands” (Waldrop and Goodrick 2012). </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>This indicator focuses on the many Southeastern ecosystems that rely on regular, low-intensity fires to maintain habitat and encourage native plant growth. The analysis defines a fire-adapted ecosystem as one that historically burned at least once every 20 years. It assesses both whether an area currently falls within its appropriate historical fire regime (as of 2024), as well as how closely it matched its historical fire regime in the recent past (between 1984 and 2024). </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'> </p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>The U.S. Forest Service’s fire regime condition classes provide a framework for characterizing how closely a site matches its historical fire regime. Areas within a <33% departure from “pre-</span><span style='background-image:url("data:image/svg+xml;base64,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"); background-position:0px 100%; background-repeat:repeat-x; border-bottom:1px solid transparent; font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>EuroAmerican</span><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> settlement era” conditions fall within an estimated historical range of variation, and are considered to have low departure from the historical fire regime; areas with a 33-66% departure are considered to have moderate departure; and areas with a >66% departure to have high departure (USFS 2010).</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:rgb(102, 102, 102); font-kerning:none; font-style:normal; margin:16px 0px 5.33333px; padding:0px; text-align:left; text-indent:0px;'><span style='color:rgb(102,102,102); font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:12pt;'><span style='font-variant-ligatures:none !important; line-height:19.425px; margin:0px; padding:0px;'><strong>Input Data</strong></span><span style='line-height:19.425px; margin:0px; padding:0px;'><strong> </strong></span></span></p></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin-bottom:0px; margin-right:0px; margin-top:0px; padding:0px; text-align:left; text-indent:0px;'><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://secas-fws.hub.arcgis.com/maps/0b3e3940763a4e3aae7647b0fe4c31e4/about' rel='nofollow ugc noopener noreferrer'>Southeast Blueprint 2026 extent</a> </p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://www.sciencebase.gov/catalog/item/6810c1a4d4be022940554075' rel='nofollow ugc noopener noreferrer'><span style='color:rgb(5,99,193); font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'><u>2024 Annual National Land Cover Database</u></span></span></a><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> (NLCD): Land cover collection 1.1</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://secas-fws.hub.arcgis.com/maps/fws::floodplain-inundation-southeast-blueprint-indicator/about' rel='nofollow ugc noopener noreferrer'><span style='color:rgb(5,99,193); font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'><u>Floodplain Inundation</u></span></span></a><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> (Southeast Conservation Blueprint Indicator)</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>U.S. Geological Survey (USGS) </span></span><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://www.sciencebase.gov/catalog/item/6244bbeed34e21f8276030bf' rel='nofollow ugc noopener noreferrer'><span style='color:rgb(5,99,193); font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'><u>Contemporary fire history metrics for the conterminous United States (1984-2024)</u></span></span></a><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> (ver. 4.0, March 2025)</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://landfire.gov/bps.php' rel='nofollow ugc noopener noreferrer'><span style='color:rgb(5,99,193); font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'><u>2020 LANDFIRE Biophysical Settings</u></span></span></a><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> (BPS) [LF 2.2.0]; </span></span><a style='color:inherit; margin:0px; padding:0px; text-decoration:none;' target='_blank' href='https://landfire.gov/data/FullExtentDownloads' rel='nofollow ugc noopener noreferrer'><span style='color:rgb(5,99,193); font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'><u>access the data</u></span></span></a><span style='color:rgb(5,99,193); font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>LANDFIRE All Years Annual Disturbance (</span><span style='background-image:url("data:image/svg+xml;base64,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"); background-position:0px 100%; background-repeat:repeat-x; border-bottom:1px solid transparent; font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Dist</span><span style='background-image:url("data:image/svg+xml;base64,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"); background-position:0px 100%; background-repeat:repeat-x; border-bottom:1px solid transparent; font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>)[</span><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>CONUS 1999-Present];</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:rgb(102, 102, 102); font-kerning:none; font-style:normal; margin:16px 0px 5.33333px; padding:0px; text-align:left; text-indent:0px;'><span style='color:rgb(102,102,102); font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:12pt;'><span style='font-variant-ligatures:none !important; line-height:19.425px; margin:0px; padding:0px;'><strong>Mapping Steps</strong></span><span style='line-height:19.425px; margin:0px; padding:0px;'><strong> </strong></span></span></p></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Start by formatting 10 years of annual disturbance </span><span style='background-image:url("data:image/svg+xml;base64,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"); background-position:0px 100%; background-repeat:repeat-x; border-bottom:1px solid transparent; font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>rasters</span><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> from LANDFIRE (2015-2024). For each annual disturbance raster, combine fire types (DIST_TYPE IN ('Fire', 'Prescribed Fire', 'Wildfire', 'Wildland Fire Use')). Then combine those </span><span style='background-image:url("data:image/svg+xml;base64,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"); background-position:0px 100%; background-repeat:repeat-x; border-bottom:1px solid transparent; font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>rasters</span><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> into a single raster so the value of each pixel is the time since last burn starting in 2024.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Combine the integrated LANDFIRE time since last burn raster with the USGS time since last burn metric (conus_1984_2024_TSLB.tif) by taking the minimum value across both </span><span style='background-image:url("data:image/svg+xml;base64,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"); background-position:0px 100%; background-repeat:repeat-x; border-bottom:1px solid transparent; font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>rasters</span><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>. Indicator reviewers identified multiple recent fires that were missing from the USGS Landsat-based fire data. Incorporating 10 years of data from LANDFIRE, which uses many data sources that don’t rely on remote sensing, helps improve coverage of recent fires.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Now estimate current departure from the historical fire regime. For fire return intervals greater than 5 years, test whether the integrated raster of time since last burn is greater than the LANDFIRE BPS historical fire return interval (FRI_ALLFIR) +33%. We include the extra 33% because that is still considered within the historical range of variation (low departure) in the fire regime condition classFor fire return intervals of 5 years or </span><span style='background-image:url("data:image/svg+xml;base64,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"); background-position:0px 100%; background-repeat:repeat-x; border-bottom:1px solid transparent; font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>less, use</span><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> historical fire return interval (FRI_ALLFIR) + 2. The percentage-based departures over-estimate departure in these more frequent intervals. For example, a 33% departure from a </span><span style='background-image:url("data:image/svg+xml;base64,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"); background-position:0px 100%; background-repeat:repeat-x; border-bottom:1px solid transparent; font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>3 year</span><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> interval is less than 1 year. That is less than the historic range of variation for many of those ecosystems in the Southeast.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div></div><div style='background-color:rgb(255, 255, 255); color:rgb(0, 0, 0); font-family:"Segoe UI", "Segoe UI Web", Arial, Verdana, sans-serif; font-size:12px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; margin:0px; padding:0px; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;'><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Next estimate departure from historical fire regime from 1984-2024. Calculate the percent departure from historic fire regime using the USGS fire frequency data (conus_1984_2024_FRQ) and the expected number of fires over the 40-year period from LANDFIRE BPS historical fire return interval (40/FRI_ALLFIR). For historical fire regimes of 5 years or less, use 40/(FRI_ALLFIR+2). Convert the percent departure into categories based on the U.S. Forest Service fire regime condition classes (≤33%, 33-66%, >66%) (USFS 2010).</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Classify as zero any pixel where the historical fire return interval is >20 years. These pixels receive the lowest indicator score because regular fire is less important in the function of these ecosystems and they are therefore not the focus of this indicator.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Combine the current departure from historical fire regime and departure from historical fire regime from 1984-2024 calculated above to generate the indicator categories as shown below. </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Rebuild the 2024 NLCD raster attribute table and calculate statistics. This fixes ESRI software problems with reclassifying based on land cover types.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Reclassify to a value of 0 the burned areas that are most likely to be false positives. </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Assign a value of 0 to pixels classified in the 2024 NLCD as one of the following landcover types: Open water (11), all urban (21, 22, 23, 24), barren (31), and cultivated crops (82). Fire in these pixels was often either not natural or likely misclassified. Clusters of pixels in barren landcover were often industrial sites and quarries. </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Assign a value of 0 to floodplain inundation indicator categories with likely misclassifications: “2 = inundation index of 91-100 (persistent inundation)”, “3 = inundation index of 6-20 (regular inundation)”, and “4 = inundation index of 21-90 (frequent inundation)”. Inundated vegetation is often misclassified as burned area since they have similar spectral signatures in remote sensing.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>As a final step, clip to the spatial extent of Southeast Blueprint 2026.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:rgb(102, 102, 102); font-kerning:none; font-weight:normal; margin:16px 0px 5.33333px; padding:0px; text-align:left; text-indent:0px;'><span style='color:rgb(102,102,102); font-family:"Source Sans Pro SemiBold", "Source Sans Pro SemiBold_EmbeddedFont", "Source Sans Pro SemiBold_MSFontService", sans-serif; font-size:11pt;'><i><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Final indicator values</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></i></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 8px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>Indicator values are assigned as follows:</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>6 = Fire-adapted area, currently in historical fire regime, low departure from historical fire </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 72px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>regime from 1984-2024</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>5 = Fire-adapted area, currently in historical fire regime, medium departure from historical fire </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 72px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>regime from 1984-2024</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>4 = Fire-adapted area, currently in historical fire regime, high departure from historical fire </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div></div><div style='background-color:rgb(255, 255, 255); color:rgb(0, 0, 0); font-family:"Segoe UI", "Segoe UI Web", Arial, Verdana, sans-serif; font-size:12px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; margin:0px; padding:0px; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;'><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 72px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>regime from 1984-2024</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>3 = Fire-adapted area, currently not in historical fire regime, low departure from historical fire </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 72px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>regime from 1984-2024</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>2 = Fire-adapted area, currently not in historical fire regime, medium departure from historical </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 72px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>fire regime from 1984-2024</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>1 = Fire-adapted area, currently not in historical fire regime, high departure from historical fire </span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 72px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>regime from 1984-2024</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px 0px 0px 48px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>0 = Urban, row crop, or not fire-adapted area (>20-year fire regime)</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></div><div style='clear:both; margin:0px; overflow:visible; padding:0px;'><p style='background-color:transparent; color:rgb(102, 102, 102); font-kerning:none; font-style:normal; margin:16px 0px 5.33333px; padding:0px; text-align:left; text-indent:0px;'><span style='color:rgb(102,102,102); font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:12pt;'><span style='font-variant-ligatures:none !important; line-height:19.425px; margin:0px; padding:0px;'><strong>Known Issues</strong></span><span style='line-height:19.425px; margin:0px; padding:0px;'><strong> </strong></span></span></p></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>This indicator does not include fires less than 10 acres in size. 10 acres is the minimum mapping unit in the fire history metric data.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>The Landsat-based fire history metrics overestimate fire frequency in open areas with wet soils. Wet soils can be much darker than dry soils and may be misclassified as burned areas. This misclassification was improved by removing areas classified as cultivated crops. A mask built on floodplain inundation frequency was also used to reduce misclassifications.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>The Landsat-based fire history metrics underestimate fire frequency in places with major impediments to burned area detection/mapping. Impediments include rapid green-up following a burn, cloud cover and shadows obscuring burn signatures, difficulty detecting or differentiating a low intensity burn signature beneath tree canopies, and the satellite product resolution often being too coarse to capture fine-scale differences or small burns.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div><div style='margin:0px; padding:0px;'><ul><li><p style='background-color:transparent; color:windowtext; font-kerning:none; font-style:normal; font-weight:normal; margin:0px; padding:0px; text-align:left; text-indent:0px;'><span style='font-family:"Source Sans Pro", "Source Sans Pro_EmbeddedFont", "Source Sans Pro_MSFontService", sans-serif; font-size:11pt;'><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>The indicator slightly underestimates areas currently within historic fire regimes in private lands when compared to public lands. While adding in LANDFIRE annual disturbance data reduced underestimates on public lands </span><span style='background-image:url("data:image/svg+xml;base64,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"); background-position:0px 100%; background-repeat:repeat-x; border-bottom:1px solid transparent; font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'>it’s</span><span style='font-variant-ligatures:none !important; line-height:18.3458px; margin:0px; padding:0px;'> coverage isn’t as good on private lands.</span><span style='line-height:18.3458px; margin:0px; padding:0px;'> </span></span></p></li></ul></div></div>
提供机构：
U.S. Fish & Wildlife Service
