Decadal Fire Effects on the Structure, Composition, Diversity, and Aboveground Carbon Stocks of a Neotropical Savanna DOI Open Access

Sarah Cristine Martins Neri,

Bárbara Bomfim,

Reginaldo Sérgio Pereira

et al.

Forests, Journal Year: 2023, Volume and Issue: 14(12), P. 2294 - 2294

Published: Nov. 23, 2023

Fire is a common disturbance in the Brazilian savanna (the cerrado), wherein high-frequency fires drive vegetation structure, composition, function, and dynamics of ecosystems. Under climate change pressure, further understanding fire–vegetation relationships interactions can provide new approaches for establishing integrated fire management strategies promote post-fire recovery. To understand how 15 years annually manipulated burning has affected vertical horizontal structures vegetation, species composition diversity metrics (species richness, Shannon’s diversity, Pielou’s evenness), aboveground carbon stocks, we surveyed all woody plant with diameter greater than three centimeters, plots typical (cerrado stricto sensu) at an experimental research station central Brazil cerrado biome). The (five per treatment) had been differently by events over decade, comprised treatments: (i) annual fire, (ii) legacy (>15 since last event), (iii) control (not burned past 30 years). A non-metric multidimensional scaling (NMDS) analysis indicated that significant effect on among treatments; some benefited from such as Erythroxylum suberosum, whereas other propagated better without Roupala montana Dalbergia miscolobium. Over decade have led to decreases stem density, which were significantly lower treatment treatments. Stem density height size classes (except 1–2 m class above 8 class) was higher treatment, but number dead trees did not differ between treatment. Our results also showed factor changes evaluated parameters, where reduced amount biomass, therefore stocks. This study suggests that, if yearly, savannas become less biodiverse terms negatively affects their resilience. Therefore, practices should focus determining frequency disturbances these ecosystems may benefit most.

Language: Английский

Mechanisms of forest resilience DOI
Donald A. Falk,

Philip J van Mantgem,

Jon E. Keeley

et al.

Forest Ecology and Management, Journal Year: 2022, Volume and Issue: 512, P. 120129 - 120129

Published: March 25, 2022

Language: Английский

Citations

160

Environmental and socioeconomic impacts of forest fires: A call for multilateral cooperation and management interventions DOI Creative Commons
Chandra Prakash Kala

Natural Hazards Research, Journal Year: 2023, Volume and Issue: 3(2), P. 286 - 294

Published: April 13, 2023

Fire is one of the dominant disturbances in forests that widely impacts ecology, environment, and socioeconomics nations across globe. In view setting priorities for combating mitigating adverse forest fires, a review literature was carried out to examine various environmental socioeconomic fires. The G20 were selected present study because together they represent 60 percent world population about 80 GDP, apart from having strategic multilateral platform connecting world's major developed emerging economic countries. illustrates contribution quite significant (69.26%) yet are impacted adversely due fires so environment diverse types possess. on countries should come forward establishing strengthening bilateral or co-operation co-ordination, also share adequate financial resources, technologies training among themselves.

Language: Английский

Citations

34

Contemporary wildfires are more severe compared to the historical reference period in western US dry conifer forests DOI Creative Commons
Sean A. Parks, Lisa M. Holsinger, Kori Blankenship

et al.

Forest Ecology and Management, Journal Year: 2023, Volume and Issue: 544, P. 121232 - 121232

Published: July 3, 2023

Language: Английский

Citations

30

Potential operational delineations: new horizons for proactive, risk-informed strategic land and fire management DOI Creative Commons
Matthew P. Thompson, Christopher D. O’Connor,

Benjamin M. Gannon

et al.

Fire Ecology, Journal Year: 2022, Volume and Issue: 18(1)

Published: Aug. 4, 2022

Abstract Background The PODs (potential operational delineations) concept is an adaptive framework for cross-boundary and collaborative land fire management planning. Use of increasingly recognized as a best practice, are seeing growing interest from federal, state, local, tribal, non-governmental organizations. Early evidence suggests provide utility planning, communication, coordination, prioritization, incident response strategy development, fuels mitigation forest restoration. Recent legislative action codifies the importance by devoting substantial financial resources to their expansion. intent this paper explore new horizons that would help organizations better address risks capitalize on opportunities. Specifically, we focus how natural platform improvement related two core elements risk management: leverage preparation foresight prepare future; learn past understand improve performance its alignment with strategy. Results We organize our exploration around three key areas, suggesting can enable climate-smart inform more agile allocation suppression resources, risk-informed measurement. These efforts be synergistic self-reinforcing, argue expanded application at local levels could enhance broader wildland system. rationales each problem area offer growth opportunities attendant explanations illustrations. Conclusions With commitment careful effort, rich innovation in both backward-looking evaluative forward-looking anticipatory frameworks. In addition continued elements, attention must paid being inclusive participatory building sufficient capacity expand applications meaningful boundary spanning ways, ensure continuity relevance over time through maintenance updating, deliver necessary information responders effective wildfires. Lastly, ongoing monitoring evaluation initiatives essential support organizational learning continual improvement.

Language: Английский

Citations

26

Blending Indigenous and western science: Quantifying cultural burning impacts in Karuk Aboriginal Territory DOI Creative Commons
Skye M. Greenler, Frank K. Lake,

William Tripp

et al.

Ecological Applications, Journal Year: 2024, Volume and Issue: 34(4)

Published: April 15, 2024

Abstract The combined effects of Indigenous fire stewardship and lightning ignitions shaped historical regimes, landscape patterns, available resources in many ecosystems globally. resulting regimes created complex fire–vegetation dynamics that were further influenced by biophysical setting, disturbance history, climate. While there is increasing recognition among western scientists managers, the extent purpose cultural burning generally absent from landscape–fire modeling literature our understanding ecosystem processes development. In collaboration with Karuk Tribe Department Natural Resources, we developed a transdisciplinary Monte Carlo simulation model ignition location, frequency, timing to simulate spatially explicit across 264,399‐ha within Aboriginal Territory northern California. Estimates parameters Tribal members knowledge holders using existing interviews, maps, ethnographies, recent ecological studies, contemporary generational knowledge. Spatial temporal attributes explicitly tied ecology specific resources, fuel receptivity, seasonal movement spiritual practices. Prior colonization, practices extensive study an estimated 6972 annual ignitions, averaging approximately 6.5 per steward year. characteristics document align closely data on vegetation but differ substantially location ignitions. This work demonstrates importance for developing maintaining present at time colonization underscores need collaboratively communities restore ecocultural these systems.

Language: Английский

Citations

5

Forest Fire Prediction with Imbalanced Data Using a Deep Neural Network Method DOI Open Access

Can Lai,

Shucai Zeng,

Wei Guo

et al.

Forests, Journal Year: 2022, Volume and Issue: 13(7), P. 1129 - 1129

Published: July 18, 2022

Forests suffer from heavy losses due to the occurrence of fires. A prediction model based on environmental condition, such as meteorological and vegetation indexes, is considered a promising tool control forest The construction models can be challenging (i) requirement selection features most relevant task, (ii) heavily imbalanced data distribution where number large-scale fires much less than that small-scale ones. In this paper, we propose fire method employs sparse autoencoder-based deep neural network novel balancing procedure. was tested dataset collected Montesinho Natural Park Portugal. Compared best results other state-of-the-art methods, proposed could predict more accurately, reduces mean absolute error by 3–19.3 root squared 0.95–19.3. better benefit management wildland in advance prevention serious accidents. It expected performance further improved if additional information are available.

Language: Английский

Citations

22

A fire deficit persists across diverse North American forests despite recent increases in area burned DOI Creative Commons
Sean A. Parks, Christopher H. Guiterman, Ellis Q. Margolis

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Feb. 10, 2025

Rapid increases in wildfire area burned across North American forests pose novel challenges for managers and society. Increasing raises questions about whether, to what degree, contemporary fire regimes (1984–2022) are still departed from historical (pre-1880). We use the tree-ring fire-scar network (NAFSN), a multi-century record comprising >1800 sites spanning diverse forest types, perimeters ask whether there is surplus or deficit, recent years unprecedented relative regimes. Our results indicate, despite increasing decades, that widespread deficit persists range of types with exceptionally high not when considering perspective offered by fire-scarred trees. For example, 'record' such as 2020 6% NAFSN sites—the average—well below maximum 29% 1748. Although extent many forests, abundant evidence severity driving loss ecosystems adversely impacting human lives, infrastructure, water supplies. Across exceptional Nevertheless, suggests its adverse impacts on humans.

Language: Английский

Citations

0

Quantifying Western US tree carbon stocks and sequestration from fires DOI Creative Commons
Panmei Jiang, Matthew B. Russell, Chad Babcock

et al.

Fire Ecology, Journal Year: 2025, Volume and Issue: 21(1)

Published: April 10, 2025

Language: Английский

Citations

0

Integrating flora, fauna, and indigenous practices into spatial optimization for prescribed burning DOI

Jie Xi,

Wei Fu, Luca Maria Francesco Fabris

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 379, P. 124833 - 124833

Published: March 9, 2025

Language: Английский

Citations

0

Too hot, too cold, or just right: Can wildfire restore dry forests of the interior Pacific Northwest? DOI Creative Commons
Skye M. Greenler, Christopher J. Dunn, James D. Johnston

et al.

PLoS ONE, Journal Year: 2023, Volume and Issue: 18(2), P. e0281927 - e0281927

Published: Feb. 27, 2023

As contemporary wildfire activity intensifies across the western United States, there is increasing recognition that a variety of forest management activities are necessary to restore ecosystem function and reduce hazard in dry forests. However, pace scale current, active insufficient address restoration needs. Managed landscape-scale prescribed burns hold potential achieve broad-scale goals but may not desired outcomes where fire severity too high or low. To explore for alone forests, we developed novel method predict range severities most likely historical basal area, density, species composition forests eastern Oregon. First, probabilistic tree mortality models 24 based on characteristics remotely sensed from burned field plots. We applied these estimates unburned stands four national post-fire conditions using multi-scale modeling Monte Carlo framework. compared results reconstructions identify with highest potential. Generally, found area density targets could be achieved by relatively narrow moderate-severity (roughly 365–560 RdNBR). single events did were historically maintained frequent, low-severity fire. Restorative ranges stand strikingly similar ponderosa pine ( Pinus ) mixed-conifer broad geographic range, part due tolerance large grand Abies grandis white fir concolor) . Our suggest created recurrent readily restored fires landscapes have passed thresholds preclude effectiveness managed as tool.

Language: Английский

Citations

7