Reyes Peak Forest Health and Fuels Reduction Project Proposal
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Reyes Peak Forest Health and Fuels Reduction Project Project Proposal May 8, 2020 Introduction The Reyes Peak Forest Health and Fuels Reduction Project, on the Ojai and Mt. Pinos Ranger Districts proposes to reduce surface and ladder fuels, reduce potential fire intensities and make the area more resilient to wildfire. The Reyes Peak Project is approximately 755 acres and located on Pine Mountain between Highway 33 and Reyes Peak, directly on the boundary of the Ojai and the Mt. Pinos Ranger Districts of the Los Padres National Forest. The project is located in Ventura County, California (San Bernardino Meridian) and runs from east to west along Pine Mountain and is approximately three miles south of the community of Camp Scheideck, California which has been identified as a community of concern within the 2006 Mt. Pinos Community Wildfire Protection Plan. The legal description for the project is: part of Section 12 in Township 7 North, Range 23 West; parts of Sections 35 and 36 in Township 7 North, Range 24 West; parts of sections 2, 3, 4, 5, 6, 8, 9, 10, & 11 in Township 6 North, Range 23 West; part of sections 1 and 2 in Township 6 North, Range 24 West. Approximately 41 percent of the project lies within the Sespe-Frazier Inventoried Roadless Area. There are no wilderness areas within the project area. However, the Sespe Wilderness lies northeast and adjacent to the project area; the Matilija Wilderness lies to the southwest; and the Dick Smith Wilderness lies northwest of the project area (figure 1). Figure 1. Overview map of the Reyes Peak Project 1 Reyes Peak Proposed Action The Healthy Forest Restoration Act authority (2003, as amended 2018) would be used for this project. The purposes of the act relevant to this project include: • to reduce wildfire risk to communities, municipal water supplies, and other at-risk Federal land through a collaborative process of planning, prioritizing, and implementing hazardous fuel reduction projects; • to reduce risk or extent of, or increase the resilience to, insect or disease infestation; • to enhance efforts to protect watersheds and address threats to forest and rangeland health, including catastrophic wildfire, across the landscape; • to protect California spotted owl habitat to the north of the treated area from the effects of catastrophic wildfire (figure 2). Figure 2 shows the vegetation within a 1,500-foot buffer around the project area in relation to wildlife created by a wildlife suitability module (Zeiner et al. 1998 and 1990). Figure 2. Wildlife suitability habitat map for Reyes Peak Project 2 Reyes Peak Proposed Action Background Information/Existing Condition Fire, Vegetation, and Fuels Fire has played an integral part in defining and shaping vegetation patterns and composition in California for millions of years, both via natural, and more recently, human-caused ignitions (van Wagtendonk et al., 2018). Frequent, low to moderate severity fire in mixed conifer and yellow pine forests played an integral role in maintaining these ecosystems historically. Fire suppression starting in the early 20th century has led to altered fire regimes that affect forest composition, structure and risk of vegetation type conversion following disturbance. Southern California conifer forests have burned very infrequently since the early 1900s, resulting in large and homogenous areas of stand-replacing burns, likely exacerbated even further by recent fire- conducive weather conditions and extended periods of drought. Recovery from large, high severity burns is likely to be impeded by the small and disparate nature of mixed conifer forests and limited seed dispersal capabilities of remaining trees (Nigro and Molinari 2019). Figure 3 represents the time since the last fire in the forested areas that are adjacent or near the project area. Figure 3. Time since the last fire in the project vicinity for conifer forest types 3 Reyes Peak Proposed Action Vegetation Types Current vegetation consists primarily of Jeffrey Pine, Sierra Nevada mixed-conifer, white fir1, with chaparral, and canyon live oak2. The exclusion of fire has allowed biomass to accumulate in forested and chaparral vegetation types. Table 1 illustrates the amount of forested and chaparral areas by slope classes3 within the project area. Table 1. Forested and chaparral areas by slope class Vegetation Type Slope Class – Less than Slope Class – Greater than Total Acres 35 Percent or equal to 35 Percent Conifer 193 230 423 Chaparral 160 156 316 Non-forested 7 9 16 Totals 360 395 755 As a result, many changes associated with the current vegetation composition and structure have occurred, which also changes the fuel profile and subsequent fire behavior characteristics. Surface fuel loading levels, trees that are dead and dying due to insect and disease, and natural forest succession make stand-replacing fire an ongoing risk to the landscape. Preliminary fire behavior modeling results show under dry conditions, 67 percent of the project area displays passive crown fire activity and 76 percent of the project area shows flame lengths greater than four feet in height that would require indirect fire suppression tactics (figure 4). 1 Jeffrey pine, Sierra mixed conifer and white fir areas are aggregated to make up the conifer vegetation types. 2 Canyon live oak and chaparral areas are aggregated to make up the chaparral vegetation types. 3 Per the Forest plan standard S2: Ground based harvest systems will normally operate on slopes up to 35 percent, and on short steep pitches up to 50 percent. 4 Reyes Peak Proposed Action Figure 4. Potential fire behavior (modeled flame lengths) for the project area Chaparral cover almost two million acres of National Forest System land in southern California (USDA Forest Service 2005). Being prone to infrequent large, high intensity wildfires is the natural condition of chaparral (California Chaparral Institute). Chaparral often grows in a continuous stand of dense vegetation, creating a potentially flammable landscape. Some chaparral have flammable characteristics such as small fine leaves, lots of litter, and peeling bark. Fires in chaparral are usually high intensity and spread rapidly through the system. Wind driven, chaparral-fueled fires often burn hot and produce tall flames and copious embers (University of California). Most homes lost in the recent fires resulted from high-intensity fires spreading into urban areas from surrounding chaparral (USDA Forest Service). 5 Reyes Peak Proposed Action Fire Regime Groups4 Fire has played an important ecological role in the history of the ecosystems of the Los Padres National Forest. Approximately 8 million lightning strikes occur globally each day, and lightning starts more than 6,000 fires in the United States each year (Pyne 1982). Since the beginning of the early 20th century, the frequency of natural fire has decreased dramatically. This decrease has corresponded with an increased demand for wildland fire suppression to protect life and property. The natural or historic fire regime is a general classification of the role fire plays in an ecosystem. The concept of a fire regime provides an integrated way of classifying the impacts of these diverse spatial and temporal patterns of fire and impacts of fire at an ecosystem or landscape level (Hardy et al. 1998). Coarse scale definitions for natural (historical) fire regimes have been developed and interpreted for fire and fuels management. The five natural (historical) fire regimes are classified based on average number of years between fires (fire frequency) combined with the severity (amount of replacement) of the fire on the dominant over story vegetation (Hann and Bunnell 2001) and are displayed in table 2. Table 2. Fire regime groups Fire Regime Group Frequency/Severity Severity Description Fire Regime Group I 0-35 years, low/mixed Generally low-severity fires replacing less severity than 25% of the dominant over story vegetation; can include mixed-severity fires that replace up to 75% of the over story. Fire Regime Group II 0-35 years, replacement High-severity fires replacing greater than severity 75% of the dominant over story vegetation. Fire Regime Group III 35 – 200 years, mixed/low Generally mixed-severity; can also include severity low-severity fires. Fire Regime Group IV 35 – 200+ years, replacement High-severity fires severity Fire Regime Group V 200+ years, replacement/ any Generally, replacement-severity; can include severity any severity type in this frequency range. Approximately 89 percent of the Reyes Peak project area is classified as Fire Regime Group I with a less than 35-year fire return interval and a low/mixed fire severity. The proportion of vegetation types by acre and percentage are contained within each fire regime group and displayed in table 3. In table 3, LANDFIRE data fire regime group data was intersected with vegetation types to show the distribution of vegetation types within mapped Fire Regime Groups in the project area. The natural fire return interval for chaparral is 30 to 150 years. Today, there are more fires than the chaparral ecosystem can tolerate (Chaparral Institute). As displayed in table 1, there are approximately 272 acres of the project area that is characterized as chaparral within Fire Regime Group I. Fire Regime Group I is defined as having a 0- to 35-year frequency with a low/mixed fire severity. The Chaparral Institute noted, chaparral has a high-intensity, crown fire regime, 4 LANDFIRE (2010) version 1.2.0 data was used to conduct an assessment