Pub Date : 2024-08-28DOI: 10.1186/s42408-024-00303-w
William Nikolakis, Russell Myers Ross, Victor Steffensen
Indigenous Fire Stewardship (IFS) is contested within settler-colonial contexts, where its development is shaped by complex and dynamic socio-cultural, legal, and political factors. This manuscript draws from the policy sciences to sketch out a “zone of interaction” between IFS and the state’s wildfire policy system. Drawing from the strategies of bureaucracies, our goal is to illustrate the patterns in this “zone of interaction,” and to identify the implications for IFS, as well as for Indigenous Peoples and landscapes. Drawing insights from the Australian and Canadian contexts where governments are restoring lands and reconciling with the laws and governance of Indigenous Peoples, we illustrate how IFS interacts with the state. We do this in two ways. Figure 1 shows that the state has three general strategies for dealing with IFS: avoidance (ignoring IFS), coping strategies (carefully considering and sometimes accommodating IFS), and learning (embracing and accommodating IFS). We document that post-wildfire, there are affective drivers that move the state’s approach from avoidance to learning; however, over time, as public attention shifts away from alternatives, the strategy moves back to either avoidance or coping strategies (where the state is required to engage with IFS, but cannot fully embrace it because of institutional, tenure, or jurisdictional issues, among other constraints). Figure 2 documents the six coping strategies available to bureaucracies in dealing with IFS, which either institutionalize, partially institutionalize, or do not institutionalize IFS. Each of these pathways has implications for IFS, and the manuscript details the effects on IFS practices, and the impacts for people and landscapes. To better support IFS, we must look beyond the institutionalization of IFS within the state, and nest IFS within Indigenous laws and governance. An Indigenous-led IFS approach can operate in parallel with the state, and develop innovative land-access arrangements and Tribal Parks to apply IFS to landscapes. New structures of engagement must be designed for this parallel space, grounded in the principle of free prior and informed consent (FPIC), and with explicit focus on deconstructing power differences.
{"title":"How bureaucracies interact with Indigenous Fire Stewardship (IFS): a conceptual framework","authors":"William Nikolakis, Russell Myers Ross, Victor Steffensen","doi":"10.1186/s42408-024-00303-w","DOIUrl":"https://doi.org/10.1186/s42408-024-00303-w","url":null,"abstract":"Indigenous Fire Stewardship (IFS) is contested within settler-colonial contexts, where its development is shaped by complex and dynamic socio-cultural, legal, and political factors. This manuscript draws from the policy sciences to sketch out a “zone of interaction” between IFS and the state’s wildfire policy system. Drawing from the strategies of bureaucracies, our goal is to illustrate the patterns in this “zone of interaction,” and to identify the implications for IFS, as well as for Indigenous Peoples and landscapes. Drawing insights from the Australian and Canadian contexts where governments are restoring lands and reconciling with the laws and governance of Indigenous Peoples, we illustrate how IFS interacts with the state. We do this in two ways. Figure 1 shows that the state has three general strategies for dealing with IFS: avoidance (ignoring IFS), coping strategies (carefully considering and sometimes accommodating IFS), and learning (embracing and accommodating IFS). We document that post-wildfire, there are affective drivers that move the state’s approach from avoidance to learning; however, over time, as public attention shifts away from alternatives, the strategy moves back to either avoidance or coping strategies (where the state is required to engage with IFS, but cannot fully embrace it because of institutional, tenure, or jurisdictional issues, among other constraints). Figure 2 documents the six coping strategies available to bureaucracies in dealing with IFS, which either institutionalize, partially institutionalize, or do not institutionalize IFS. Each of these pathways has implications for IFS, and the manuscript details the effects on IFS practices, and the impacts for people and landscapes. To better support IFS, we must look beyond the institutionalization of IFS within the state, and nest IFS within Indigenous laws and governance. An Indigenous-led IFS approach can operate in parallel with the state, and develop innovative land-access arrangements and Tribal Parks to apply IFS to landscapes. New structures of engagement must be designed for this parallel space, grounded in the principle of free prior and informed consent (FPIC), and with explicit focus on deconstructing power differences.","PeriodicalId":12273,"journal":{"name":"Fire Ecology","volume":"39 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-27DOI: 10.1186/s42408-024-00315-6
Erica A. H. Smithwick, Hong Wu, Kaitlyn Spangler, Mahsa Adib, Rui Wang, Cody Dems, Alan Taylor, Margot Kaye, Katherine Zipp, Peter Newman, Zachary D. Miller, Anthony Zhao
Prescribed burning is a beneficial fire management practice used by practitioners worldwide to meet multiple land management objectives, including reduction of wildfire hazard, promotion of biodiversity, and management of vegetation for wildlife and human interests. Meeting these objectives can be difficult due to the need for institutional coordination, resource and policy constraints, and community support. We examined these dynamics in the United States’ mid-Atlantic region because prescribed fire use is increasing in the region to meet a broadening set of land management objectives. Managers are at the frontlines of these challenges and hold significant experience and knowledge for enhancing wildland fire management policy and strategy. Towards better leveraging this insight, we conducted focus groups with fire managers in land management agencies in the region to identify managers’ perceived barriers and opportunities for implementing prescribed fire. We found manager perceptions to be hierarchical, with barriers and opportunities expressed across landscape, community, and individual levels. Limited institutional coordination across landscapes was seen by managers as an opportunity for expanding prescribed fire implementation, whereas coping with shared fear or stress about burning among individual managers or individual community members was seen as a significant barrier. Yet, despite different prescribed burning histories and policies at the state level, barriers and opportunities were similar among managers in the mid-Atlantic region. Managers in the mid-Atlantic region confront barriers to prescribed fire use but are also uniquely positioned to recognize opportunities to enhance its implementation. This work sheds light on these barriers and opportunities, revealing that managers desire greater opportunities for landscape-level fire planning and coordination across agencies as well as greater opportunities for community engagement and interpersonal trust-building within complex social-management networks. Manager perspectives from the mid-Atlantic provide lessons for other regions across the globe grappling with new or broadened land-management strategies that include beneficial fire use.
{"title":"Barriers and opportunities for implementing prescribed fire: lessons from managers in the mid-Atlantic region, United States","authors":"Erica A. H. Smithwick, Hong Wu, Kaitlyn Spangler, Mahsa Adib, Rui Wang, Cody Dems, Alan Taylor, Margot Kaye, Katherine Zipp, Peter Newman, Zachary D. Miller, Anthony Zhao","doi":"10.1186/s42408-024-00315-6","DOIUrl":"https://doi.org/10.1186/s42408-024-00315-6","url":null,"abstract":"Prescribed burning is a beneficial fire management practice used by practitioners worldwide to meet multiple land management objectives, including reduction of wildfire hazard, promotion of biodiversity, and management of vegetation for wildlife and human interests. Meeting these objectives can be difficult due to the need for institutional coordination, resource and policy constraints, and community support. We examined these dynamics in the United States’ mid-Atlantic region because prescribed fire use is increasing in the region to meet a broadening set of land management objectives. Managers are at the frontlines of these challenges and hold significant experience and knowledge for enhancing wildland fire management policy and strategy. Towards better leveraging this insight, we conducted focus groups with fire managers in land management agencies in the region to identify managers’ perceived barriers and opportunities for implementing prescribed fire. We found manager perceptions to be hierarchical, with barriers and opportunities expressed across landscape, community, and individual levels. Limited institutional coordination across landscapes was seen by managers as an opportunity for expanding prescribed fire implementation, whereas coping with shared fear or stress about burning among individual managers or individual community members was seen as a significant barrier. Yet, despite different prescribed burning histories and policies at the state level, barriers and opportunities were similar among managers in the mid-Atlantic region. Managers in the mid-Atlantic region confront barriers to prescribed fire use but are also uniquely positioned to recognize opportunities to enhance its implementation. This work sheds light on these barriers and opportunities, revealing that managers desire greater opportunities for landscape-level fire planning and coordination across agencies as well as greater opportunities for community engagement and interpersonal trust-building within complex social-management networks. Manager perspectives from the mid-Atlantic provide lessons for other regions across the globe grappling with new or broadened land-management strategies that include beneficial fire use.","PeriodicalId":12273,"journal":{"name":"Fire Ecology","volume":"1 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-27DOI: 10.1186/s42408-024-00297-5
Clare E. Boerigter, Sean A. Parks, Jonathan W. Long, Jonathan D. Coop, Melanie Armstrong, Don L. Hankins
Historical and contemporary policies and practices, including the suppression of lightning-ignited fires and the removal of intentional fires ignited by Indigenous peoples, have resulted in over a century of fire exclusion across many of the USA’s landscapes. Within many designated wilderness areas, this intentional exclusion of fire has clearly altered ecological processes and thus constitutes a fundamental and ubiquitous act of trammeling. Through a framework that recognizes four orders of trammeling, we demonstrate the substantial, long-term, and negative effects of fire exclusion on the natural conditions of fire-adapted wilderness ecosystems. In order to untrammel more than a century of fire exclusion, the implementation of active programs of intentional burning may be necessary across some wilderness landscapes. We also suggest greater recognition and accommodation of Indigenous cultural burning, a practice which Tribes used to shape and maintain many fire-adapted landscapes for thousands of years before Euro-American colonization, including landscapes today designated as wilderness. Human-ignited fire may be critical to restoring the natural character of fire-adapted wilderness landscapes and can also support ecocultural restoration efforts sought by Indigenous peoples.
{"title":"Untrammeling the wilderness: restoring natural conditions through the return of human-ignited fire","authors":"Clare E. Boerigter, Sean A. Parks, Jonathan W. Long, Jonathan D. Coop, Melanie Armstrong, Don L. Hankins","doi":"10.1186/s42408-024-00297-5","DOIUrl":"https://doi.org/10.1186/s42408-024-00297-5","url":null,"abstract":"Historical and contemporary policies and practices, including the suppression of lightning-ignited fires and the removal of intentional fires ignited by Indigenous peoples, have resulted in over a century of fire exclusion across many of the USA’s landscapes. Within many designated wilderness areas, this intentional exclusion of fire has clearly altered ecological processes and thus constitutes a fundamental and ubiquitous act of trammeling. Through a framework that recognizes four orders of trammeling, we demonstrate the substantial, long-term, and negative effects of fire exclusion on the natural conditions of fire-adapted wilderness ecosystems. In order to untrammel more than a century of fire exclusion, the implementation of active programs of intentional burning may be necessary across some wilderness landscapes. We also suggest greater recognition and accommodation of Indigenous cultural burning, a practice which Tribes used to shape and maintain many fire-adapted landscapes for thousands of years before Euro-American colonization, including landscapes today designated as wilderness. Human-ignited fire may be critical to restoring the natural character of fire-adapted wilderness landscapes and can also support ecocultural restoration efforts sought by Indigenous peoples.","PeriodicalId":12273,"journal":{"name":"Fire Ecology","volume":"4 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-27DOI: 10.1186/s42408-024-00306-7
Jaekyoung Kim, Junghyeon Ahn, Junsuk Kang
Because the threat of wildfires to global ecosystems and society continues to rise, this study provides an experimental simulation framework that assesses the spread and reduction of wildfires to evaluate the effectiveness of adaptation methods in reducing their impact. The process entails selecting a vulnerable wildfire area and adaptation method, then generating the computational fluid dynamics (CFD) model. Monitoring data are then used to configure the model, set boundary conditions, and simulate the fire. The effectiveness of the adaptation method in minimizing damage in the area of interest is evaluated by comparing simulations with and without the chosen adaptation method. Our focus area was a natural recreational forest in Wonju, Gangwon-do, Korea, and our adaptation method was a water sprinkler system. Our framework provides aims to provide an experimental means of assessing the wildfire spread path and spread area based on exogenous variables of wind speed, wind direction, relative humidity, and more. The sprinkler adaptation had a reduction effect of 20% in the wildfire spread rate for the 10-h period, which refers to the time limit of the simulation after ignition. We revealed that at higher wind speeds, the fire primarily follows the wind direction; whereas at lower wind speeds, the fire is more influenced by the topography. Additionally, 60 min after ignition, the adaptation methods can suppress wildfire spread by > 70%. Notably, sprinklers reduce smoke concentrations by up to 50% (ppm) over the affected area. This study demonstrates the potential effectiveness of a comprehensive CFD model in mitigating wildfire spread using sprinkler systems as an experimental analysis. Key results include a 20% reduction in wildfire within 10 h of ignition, significant influence of wind speed on spread patterns, and a reduction of smoke concentrations, improving air quality. These findings highlight the potential of CFD-based frameworks to enhance wildfire response strategies. However, it is important to note that this study’s limitations include the lack of experimental or measured fire behavior data, which should be considered when interpreting the effectiveness of the CFD model.
{"title":"Adaptive wildfire spread prediction for complex terrain: modeling the effectiveness of sprinkler systems","authors":"Jaekyoung Kim, Junghyeon Ahn, Junsuk Kang","doi":"10.1186/s42408-024-00306-7","DOIUrl":"https://doi.org/10.1186/s42408-024-00306-7","url":null,"abstract":"Because the threat of wildfires to global ecosystems and society continues to rise, this study provides an experimental simulation framework that assesses the spread and reduction of wildfires to evaluate the effectiveness of adaptation methods in reducing their impact. The process entails selecting a vulnerable wildfire area and adaptation method, then generating the computational fluid dynamics (CFD) model. Monitoring data are then used to configure the model, set boundary conditions, and simulate the fire. The effectiveness of the adaptation method in minimizing damage in the area of interest is evaluated by comparing simulations with and without the chosen adaptation method. Our focus area was a natural recreational forest in Wonju, Gangwon-do, Korea, and our adaptation method was a water sprinkler system. Our framework provides aims to provide an experimental means of assessing the wildfire spread path and spread area based on exogenous variables of wind speed, wind direction, relative humidity, and more. The sprinkler adaptation had a reduction effect of 20% in the wildfire spread rate for the 10-h period, which refers to the time limit of the simulation after ignition. We revealed that at higher wind speeds, the fire primarily follows the wind direction; whereas at lower wind speeds, the fire is more influenced by the topography. Additionally, 60 min after ignition, the adaptation methods can suppress wildfire spread by > 70%. Notably, sprinklers reduce smoke concentrations by up to 50% (ppm) over the affected area. This study demonstrates the potential effectiveness of a comprehensive CFD model in mitigating wildfire spread using sprinkler systems as an experimental analysis. Key results include a 20% reduction in wildfire within 10 h of ignition, significant influence of wind speed on spread patterns, and a reduction of smoke concentrations, improving air quality. These findings highlight the potential of CFD-based frameworks to enhance wildfire response strategies. However, it is important to note that this study’s limitations include the lack of experimental or measured fire behavior data, which should be considered when interpreting the effectiveness of the CFD model.","PeriodicalId":12273,"journal":{"name":"Fire Ecology","volume":"7 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-27DOI: 10.1186/s42408-024-00293-9
Arpit Tiwari, Preethi Nanjundan, Ravi Ranjan Kumar, Vijay Kumar Soni
Wildfires have a substantial impact on air quality and ecosystems by releasing greenhouse gases (GHGs), trace gases, and aerosols into the atmosphere. These wildfires produce both light-absorbing and merely scattering aerosols that can act as cloud condensation nuclei, altering cloud reflectivity, cloud lifetime, and precipitation frequency. Uttarakhand province in India experiences frequent wildfires that affect its protected ecosystems. Thus, a natural resource management system is needed in this region to assess the impact of wildfire hazards on land and atmosphere. We conducted an analysis of a severe fire event that occurred between January and April 2021 in the Kumaun region of Uttarakhand, by utilizing open-source geospatial data. Near-real-time satellite observations of pre- and post-fire conditions within the study area were used to detect changes in land and atmosphere. Supervised machine learning algorithm was also implemented to estimate burned above ground biomass (AGB) to monitor biomass stock. The study found that 21.75% of the total burned area burned with moderate to high severity, resulting in a decreased Soil Adjusted Vegetation Index value (> 0.3), a reduced Normalized Differential Moisture Index value (> 0.4), and a lowered Normalized Differential Vegetation Index (> 0.5). The AGB estimate demonstrated a significant simple determination (r2 = 0.001702) and probability (P < 2.2 10−16), along with a positive correlation (r ≤ 0.24) with vegetation and soil indices. The algorithm predicted that 17.56 tonnes of biomass per hectare burned in the Kumaun forests. This fire incident resulted in increased emissions of carbon dioxide (CO2; ~ 0.8 10−4 kg carbon h−1), methane (CH4; ~ 200 10−9 mol fraction in dry air), carbon monoxide (CO; 2000 1015 molecules cm−2 total column), and formaldehyde (HCHO; 3500 1013 molecules cm−2 total column), along with increased aerosol optical thickness (varying from 0.2 to 0.5). We believe that our proposed operational framework for managing natural resources and assessing the impact of natural hazards can be used to efficiently monitor near-real-time forest-fire-caused changes in land and atmosphere. This method makes use of openly accessible geospatial data that can be employed for several objectives, including monitoring carbon stocks, greenhouse gas emissions, criterion air pollution, and radiative forcing of the climate, among many others. Our proposed framework will assist policymakers and the scientific community in mitigating climate change problems and in developing adaptation policies.
{"title":"A framework for natural resource management with geospatial machine learning: a case study of the 2021 Almora forest fires","authors":"Arpit Tiwari, Preethi Nanjundan, Ravi Ranjan Kumar, Vijay Kumar Soni","doi":"10.1186/s42408-024-00293-9","DOIUrl":"https://doi.org/10.1186/s42408-024-00293-9","url":null,"abstract":"Wildfires have a substantial impact on air quality and ecosystems by releasing greenhouse gases (GHGs), trace gases, and aerosols into the atmosphere. These wildfires produce both light-absorbing and merely scattering aerosols that can act as cloud condensation nuclei, altering cloud reflectivity, cloud lifetime, and precipitation frequency. Uttarakhand province in India experiences frequent wildfires that affect its protected ecosystems. Thus, a natural resource management system is needed in this region to assess the impact of wildfire hazards on land and atmosphere. We conducted an analysis of a severe fire event that occurred between January and April 2021 in the Kumaun region of Uttarakhand, by utilizing open-source geospatial data. Near-real-time satellite observations of pre- and post-fire conditions within the study area were used to detect changes in land and atmosphere. Supervised machine learning algorithm was also implemented to estimate burned above ground biomass (AGB) to monitor biomass stock. The study found that 21.75% of the total burned area burned with moderate to high severity, resulting in a decreased Soil Adjusted Vegetation Index value (> 0.3), a reduced Normalized Differential Moisture Index value (> 0.4), and a lowered Normalized Differential Vegetation Index (> 0.5). The AGB estimate demonstrated a significant simple determination (r2 = 0.001702) and probability (P < 2.2 10−16), along with a positive correlation (r ≤ 0.24) with vegetation and soil indices. The algorithm predicted that 17.56 tonnes of biomass per hectare burned in the Kumaun forests. This fire incident resulted in increased emissions of carbon dioxide (CO2; ~ 0.8 10−4 kg carbon h−1), methane (CH4; ~ 200 10−9 mol fraction in dry air), carbon monoxide (CO; 2000 1015 molecules cm−2 total column), and formaldehyde (HCHO; 3500 1013 molecules cm−2 total column), along with increased aerosol optical thickness (varying from 0.2 to 0.5). We believe that our proposed operational framework for managing natural resources and assessing the impact of natural hazards can be used to efficiently monitor near-real-time forest-fire-caused changes in land and atmosphere. This method makes use of openly accessible geospatial data that can be employed for several objectives, including monitoring carbon stocks, greenhouse gas emissions, criterion air pollution, and radiative forcing of the climate, among many others. Our proposed framework will assist policymakers and the scientific community in mitigating climate change problems and in developing adaptation policies.","PeriodicalId":12273,"journal":{"name":"Fire Ecology","volume":"31 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-26DOI: 10.1186/s42408-024-00301-y
Sara A. Clark, Jenna N. Archer, Scott L. Stephens, Brandon M. Collins, Don L. Hankins
Enactment of the Clean Air Act (CAA), Endangered Species Act (ESA), and National Environmental Policy Act (NEPA), three of the primary federal environmental laws, all coincided with the height of fire suppression and exclusion in the United States. These laws fail to acknowledge or account for the importance of fire in many fire-adapted and fire-dependent ecosystems, particularly in the American west, or the imperative for fire restoration to improve resiliency and reduce wildfire risk as identified by western science and Indigenous knowledge. We review the statutory and regulatory provisions of these federal laws to identify how the existing policy framework misaligns with the unique role of fire in ecosystems and with Tribal sovereignty, identify specific barriers and disincentives to beneficial fire use, and propose specific policy reforms. The CAA, the ESA, and NEPA inhibit the use of beneficial fire as they are founded in a policy framework that treats fire restoration and maintenance as a federal action or human activity, rather than as a natural, baseline, or keystone process. The emergency exceptions in these policies reduce accountability and incentivize the wrong kind of fire, and compliance creates a perverse outcome by disincentivizing fire restoration. Further, these federal policies impede Tribal sovereignty. Modifications to these laws would better enable fire restoration in fire-dependent and fire-adapted ecosystems, reduce wildfire risk, and ultimately meet the statutes’ core purposes. Federal agencies and Congress should reform regulatory frameworks to explicitly recognize fire as a baseline, natural, or keystone process, such that restoring fire in fire-dependent and fire-adapted ecosystems at levels not significantly exceeding pre-1800 fire return intervals is not treated as a federal or agency action. Further, non-Tribal governments should not attempt to regulate cultural burning, as it is a retained right of Indigenous peoples.
{"title":"Realignment of federal environmental policies to recognize fire’s role","authors":"Sara A. Clark, Jenna N. Archer, Scott L. Stephens, Brandon M. Collins, Don L. Hankins","doi":"10.1186/s42408-024-00301-y","DOIUrl":"https://doi.org/10.1186/s42408-024-00301-y","url":null,"abstract":"Enactment of the Clean Air Act (CAA), Endangered Species Act (ESA), and National Environmental Policy Act (NEPA), three of the primary federal environmental laws, all coincided with the height of fire suppression and exclusion in the United States. These laws fail to acknowledge or account for the importance of fire in many fire-adapted and fire-dependent ecosystems, particularly in the American west, or the imperative for fire restoration to improve resiliency and reduce wildfire risk as identified by western science and Indigenous knowledge. We review the statutory and regulatory provisions of these federal laws to identify how the existing policy framework misaligns with the unique role of fire in ecosystems and with Tribal sovereignty, identify specific barriers and disincentives to beneficial fire use, and propose specific policy reforms. The CAA, the ESA, and NEPA inhibit the use of beneficial fire as they are founded in a policy framework that treats fire restoration and maintenance as a federal action or human activity, rather than as a natural, baseline, or keystone process. The emergency exceptions in these policies reduce accountability and incentivize the wrong kind of fire, and compliance creates a perverse outcome by disincentivizing fire restoration. Further, these federal policies impede Tribal sovereignty. Modifications to these laws would better enable fire restoration in fire-dependent and fire-adapted ecosystems, reduce wildfire risk, and ultimately meet the statutes’ core purposes. Federal agencies and Congress should reform regulatory frameworks to explicitly recognize fire as a baseline, natural, or keystone process, such that restoring fire in fire-dependent and fire-adapted ecosystems at levels not significantly exceeding pre-1800 fire return intervals is not treated as a federal or agency action. Further, non-Tribal governments should not attempt to regulate cultural burning, as it is a retained right of Indigenous peoples.","PeriodicalId":12273,"journal":{"name":"Fire Ecology","volume":"1 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-22DOI: 10.1186/s42408-024-00311-w
Charlotte M. Reemts, Carla Picinich, Jinelle H. Sperry
In central Texas, re-sprouting oaks (Quercus spp.) co-occur with non-resprouting Ashe juniper (Juniperus ashei) in a mosaic of fire-dependent (oak savanna) and fire-sensitive (oak-juniper woodland) habitats. The region’s mature woodlands are the only nesting habitat for the endangered golden-cheeked warbler (Setophaga chrysoparia). We studied long-term recovery of woodland structure and species composition after single and repeated crown fires on three soil types (mesa, slope, and deep savanna soils). On once-burned sites, density and basal area of non-juniper trees (all woody species except juniper) reached or exceeded unburned levels after 14–24 years, indicating successful recruitment (24 years vs unburned, mesa: 481 ± 254 vs 155 ± 137 stems ha−1, 2 ± 1 vs 1 ± 2 m2 ha−1; slope: 910 ± 330 vs 251 ± 103 stems ha−1, 5 ± 2 vs 3 ± 2 m2 ha−1). Ashe juniper, however, remained mostly absent from burned woodlands (juniper tree density, 24 years vs unburned, mesa: 6 ± 10 vs 691 ± 410 stems ha−1; slope: 20 ± 17 vs 731 ± 183 stems ha−1) and total basal area was 47–87% lower than in unburned areas. In formerly fire-suppressed savannas, non-juniper tree density exceeded unburned levels and juniper density recovered the most (24 years vs unburned, non-juniper: 679 ± 250 vs 251 ± 103 stems ha−1; juniper: deep: 50 ± 71 vs 317 ± 297 stems ha−1). Juniper trees were still absent from twice-burned sites in year 11 and understory density was recovering more slowly, at least on slopes (one fire: 224 ± 206 stems ha−1; two fires: 26 ± 47 stems ha−1). Juniper recovery was correlated with distance to the wildfire perimeter, suggesting that regeneration is limited in part by dispersal. We found successful recruitment of resprouting hardwood species after one and two crown fires, likely due to the low deer densities at Fort Cavazos. In fire-suppressed oak savannas, a single crown fire did not restore savanna structure and Ashe juniper is slowly re-establishing. Long-term restoration of a savanna on these soils will require additional treatments, like repeated prescribed fire. In oak-juniper woodlands, crown fires removed the fire-sensitive Ashe juniper from canopy co-dominance for decades, making the woodlands unsuitable as habitat for golden-cheeked warblers. Given the long-term consequences of crown fires for golden-cheeked warbler habitat, existing mature oak-juniper woodlands should be protected from crown fire.
{"title":"Crown fires remove a fire-sensitive canopy dominant from oak-juniper woodlands: results from long-term monitoring of wildfires","authors":"Charlotte M. Reemts, Carla Picinich, Jinelle H. Sperry","doi":"10.1186/s42408-024-00311-w","DOIUrl":"https://doi.org/10.1186/s42408-024-00311-w","url":null,"abstract":"In central Texas, re-sprouting oaks (Quercus spp.) co-occur with non-resprouting Ashe juniper (Juniperus ashei) in a mosaic of fire-dependent (oak savanna) and fire-sensitive (oak-juniper woodland) habitats. The region’s mature woodlands are the only nesting habitat for the endangered golden-cheeked warbler (Setophaga chrysoparia). We studied long-term recovery of woodland structure and species composition after single and repeated crown fires on three soil types (mesa, slope, and deep savanna soils). On once-burned sites, density and basal area of non-juniper trees (all woody species except juniper) reached or exceeded unburned levels after 14–24 years, indicating successful recruitment (24 years vs unburned, mesa: 481 ± 254 vs 155 ± 137 stems ha−1, 2 ± 1 vs 1 ± 2 m2 ha−1; slope: 910 ± 330 vs 251 ± 103 stems ha−1, 5 ± 2 vs 3 ± 2 m2 ha−1). Ashe juniper, however, remained mostly absent from burned woodlands (juniper tree density, 24 years vs unburned, mesa: 6 ± 10 vs 691 ± 410 stems ha−1; slope: 20 ± 17 vs 731 ± 183 stems ha−1) and total basal area was 47–87% lower than in unburned areas. In formerly fire-suppressed savannas, non-juniper tree density exceeded unburned levels and juniper density recovered the most (24 years vs unburned, non-juniper: 679 ± 250 vs 251 ± 103 stems ha−1; juniper: deep: 50 ± 71 vs 317 ± 297 stems ha−1). Juniper trees were still absent from twice-burned sites in year 11 and understory density was recovering more slowly, at least on slopes (one fire: 224 ± 206 stems ha−1; two fires: 26 ± 47 stems ha−1). Juniper recovery was correlated with distance to the wildfire perimeter, suggesting that regeneration is limited in part by dispersal. We found successful recruitment of resprouting hardwood species after one and two crown fires, likely due to the low deer densities at Fort Cavazos. In fire-suppressed oak savannas, a single crown fire did not restore savanna structure and Ashe juniper is slowly re-establishing. Long-term restoration of a savanna on these soils will require additional treatments, like repeated prescribed fire. In oak-juniper woodlands, crown fires removed the fire-sensitive Ashe juniper from canopy co-dominance for decades, making the woodlands unsuitable as habitat for golden-cheeked warblers. Given the long-term consequences of crown fires for golden-cheeked warbler habitat, existing mature oak-juniper woodlands should be protected from crown fire.","PeriodicalId":12273,"journal":{"name":"Fire Ecology","volume":"27 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-19DOI: 10.1186/s42408-024-00312-9
Lauren S. Pile Knapp, Daniel C. Dey, Michael C. Stambaugh, Frank R. Thompson, J. Morgan Varner
Ecosystem management, community restoration, and managing for climate resilience have become major priorities of land management in recent decades. For woodlands and savannas (i.e., “open forests”), this transition has meant moving fire-deprived, closed-canopy forests to structures and compositions characteristic of natural communities that are rare today: open-grown, wide-spreading trees, and endemic flora and fauna associated with frequent, low to moderate intensity fires. Open forest restoration is complex; its approach and operational prescriptions are dependent on a multitude of factors. Reopening forests to achieve ecological objectives associated with open forests is hampered by site histories, novel species compositions, and structures that resist fire. Fire histories shed light on fire regimes that promote open forests, informing prescriptions at stand and landscape levels, but due to many social and environmental factors, managers are challenged to recreate those fire regimes. As fire was removed from these ecosystems, successional processes led to changes in species compositions concomitant with changes in woody structure and fuel complexes further inhibiting restoration without active management. As active management aims to transition residing fine fuels from mesophytic hardwood-shrub litter to herbaceous dominant fuels with canopy openness, fire effects, and prescriptions also change. Silvicultural prescriptions have been developed to aid in the process of transition but maintaining mature, continuous canopy open forests through the regeneration and recruitment phase of predominantly shade intolerant of oaks and pines remains speculative. Further, as a legacy of woody densification, contemporary fire practices may result in undesirable increases in sprouting woody species impacting objectives for herbaceous cover and diversity. Invasive plants and depauperate seed banks may further limit successful outcomes. Even with these formidable challenges, transitioning closed forests to open structures and compositions is critically important for wildlife that depend on them, especially at the size, scale, and connectivity necessary to sustain their populations. Many birds and pollinators of conservation concern require open forests and early successional forests may not serve as surrogates for mature, open forest habitat. In this review, we outline the advances, challenges, and importance for reopening closed canopied forests to open forests in the central and midsouth, USA. Further, we set the stage for new approaches and learned outcomes from the papers of the 7th Fire in Eastern Oak Forests Conference in Tyler, TX, included in this special collection of Fire Ecology.
{"title":"Managing forward while looking back: reopening closed forests to open woodlands and savannas","authors":"Lauren S. Pile Knapp, Daniel C. Dey, Michael C. Stambaugh, Frank R. Thompson, J. Morgan Varner","doi":"10.1186/s42408-024-00312-9","DOIUrl":"https://doi.org/10.1186/s42408-024-00312-9","url":null,"abstract":"Ecosystem management, community restoration, and managing for climate resilience have become major priorities of land management in recent decades. For woodlands and savannas (i.e., “open forests”), this transition has meant moving fire-deprived, closed-canopy forests to structures and compositions characteristic of natural communities that are rare today: open-grown, wide-spreading trees, and endemic flora and fauna associated with frequent, low to moderate intensity fires. Open forest restoration is complex; its approach and operational prescriptions are dependent on a multitude of factors. Reopening forests to achieve ecological objectives associated with open forests is hampered by site histories, novel species compositions, and structures that resist fire. Fire histories shed light on fire regimes that promote open forests, informing prescriptions at stand and landscape levels, but due to many social and environmental factors, managers are challenged to recreate those fire regimes. As fire was removed from these ecosystems, successional processes led to changes in species compositions concomitant with changes in woody structure and fuel complexes further inhibiting restoration without active management. As active management aims to transition residing fine fuels from mesophytic hardwood-shrub litter to herbaceous dominant fuels with canopy openness, fire effects, and prescriptions also change. Silvicultural prescriptions have been developed to aid in the process of transition but maintaining mature, continuous canopy open forests through the regeneration and recruitment phase of predominantly shade intolerant of oaks and pines remains speculative. Further, as a legacy of woody densification, contemporary fire practices may result in undesirable increases in sprouting woody species impacting objectives for herbaceous cover and diversity. Invasive plants and depauperate seed banks may further limit successful outcomes. Even with these formidable challenges, transitioning closed forests to open structures and compositions is critically important for wildlife that depend on them, especially at the size, scale, and connectivity necessary to sustain their populations. Many birds and pollinators of conservation concern require open forests and early successional forests may not serve as surrogates for mature, open forest habitat. In this review, we outline the advances, challenges, and importance for reopening closed canopied forests to open forests in the central and midsouth, USA. Further, we set the stage for new approaches and learned outcomes from the papers of the 7th Fire in Eastern Oak Forests Conference in Tyler, TX, included in this special collection of Fire Ecology.","PeriodicalId":12273,"journal":{"name":"Fire Ecology","volume":"43 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-12DOI: 10.1186/s42408-024-00299-3
Carolyn A. Stephen, Dan G. Drees, Jamie H. Ladner, Lauren L. Sullivan
Decades of fire suppression caused drastic changes to community structure and composition across ecosystems, including in Ozark woodlands in Missouri, USA. Reintroducing fire can restore ground flora by reducing midstory tree density, increasing ground layer light, and reducing leaf litter accumulation, but we lack a clear understanding of how these effects vary across time and space. We investigated the effects of repeated prescribed fire on ground flora species richness, floristic quality, abundance, community composition, and stand structure over 20 years in a landscape matrix of dry-mesic woodlands, dry woodlands, and glades using data collected from the Ozark National Scenic Riverways Fire Effects Monitoring program in the Current River Watershed in the Missouri Ozarks. We found that fire plays a key role in driving community structure and dynamics across community types, although with varying levels of intensity. Herbaceous species richness, abundance, and floristic quality index increased across all community types, while mean coefficient of conservatism decreased. Abundance and floristic quality effects were stronger in drier sites. Community composition changed with successive burns, resulting in several indicator species for post burn treatments. The density of midstory trees declined across community types with repeated fire. The number of burns significantly affected overstory tree density overall, but overstory tree density only declined in dry woodlands and glades and not in dry-mesic woodlands. Our results suggest that landscape fire shapes plant community structure and dynamics. Specifically, these findings show that fire effects vary among community types and suggest that land managers should consider landscape heterogeneity in fire application for restoration. Separate community types imbedded in the same landscape may respond to fire differently. Understanding repeated fire effects over several decades across multiple community types is critical to informing fire-driven woodland restoration across landscape scales.
{"title":"Fire effects on plant communities in Ozark woodlands and glades","authors":"Carolyn A. Stephen, Dan G. Drees, Jamie H. Ladner, Lauren L. Sullivan","doi":"10.1186/s42408-024-00299-3","DOIUrl":"https://doi.org/10.1186/s42408-024-00299-3","url":null,"abstract":"Decades of fire suppression caused drastic changes to community structure and composition across ecosystems, including in Ozark woodlands in Missouri, USA. Reintroducing fire can restore ground flora by reducing midstory tree density, increasing ground layer light, and reducing leaf litter accumulation, but we lack a clear understanding of how these effects vary across time and space. We investigated the effects of repeated prescribed fire on ground flora species richness, floristic quality, abundance, community composition, and stand structure over 20 years in a landscape matrix of dry-mesic woodlands, dry woodlands, and glades using data collected from the Ozark National Scenic Riverways Fire Effects Monitoring program in the Current River Watershed in the Missouri Ozarks. We found that fire plays a key role in driving community structure and dynamics across community types, although with varying levels of intensity. Herbaceous species richness, abundance, and floristic quality index increased across all community types, while mean coefficient of conservatism decreased. Abundance and floristic quality effects were stronger in drier sites. Community composition changed with successive burns, resulting in several indicator species for post burn treatments. The density of midstory trees declined across community types with repeated fire. The number of burns significantly affected overstory tree density overall, but overstory tree density only declined in dry woodlands and glades and not in dry-mesic woodlands. Our results suggest that landscape fire shapes plant community structure and dynamics. Specifically, these findings show that fire effects vary among community types and suggest that land managers should consider landscape heterogeneity in fire application for restoration. Separate community types imbedded in the same landscape may respond to fire differently. Understanding repeated fire effects over several decades across multiple community types is critical to informing fire-driven woodland restoration across landscape scales.","PeriodicalId":12273,"journal":{"name":"Fire Ecology","volume":"39 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141946265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Retraction Note: Shapley-based interpretation of deep learning models for wildfire spread rate prediction","authors":"Faiza Qayyum, Nagwan Abdel Samee, Maali Alabdulhafith, Ahmed Aziz, Mohammad Hijjawi","doi":"10.1186/s42408-024-00307-6","DOIUrl":"https://doi.org/10.1186/s42408-024-00307-6","url":null,"abstract":"This article has been retracted. Please see the Retraction Notice for more detail: https://doi.org/10.1186/s42408-023-00242-y.","PeriodicalId":12273,"journal":{"name":"Fire Ecology","volume":"41 1","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141946262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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