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Ecosystem

Displaying 1041 - 1060 of 6011 results

Fire whirls are a particular case of flame behaviour characterized by a rotating column of fire driven by intense convective heating of air close to the ground. They typically result in a substantial increase in burning rate, temperature, and flame…
Author(s): Maryam Ghodrat, Farshad Shakeriaski, David James Nelson, Albert Simeoni
Year Published:

With the increasing frequency and severity of fire, there is an increasing desire to better manage fuels and minimize, as much as possible, the impacts of fire on soils and other natural resources. Piling and/or burning slash is one method of…
Author(s): William J. Massman
Year Published:

In 2020, people's health suffered a great crisis under the dual effects of the COVID-19 pandemic and the extensive, severe wildfires in the western and central United States. Parks, including city, national, and cultural parks, offer a unique…
Author(s): Anni Yang, Jue Yang, Di Yang, Rongting Xu, Yaqian He, Amanda Aragon, Han Qiu
Year Published:

1. Spatial connections between habitats are important to allow movement of organisms across heterogeneous landscapes with diverse disturbances and management. Similarly, species providing functional connections between subnetworks of species…
Author(s): Laura A. Burkle, Laura J. Heil, R. Travis Belote
Year Published:

The spatial overlap of multiple ecological disturbances in close succession has the capacity to alter trajectories of ecosystem recovery. Widespread bark beetle outbreaks and wildfire have affected many forests in western North America in the past…
Author(s): Robert A. Andrus, Sarah J. Hart, Niko Tutland, Thomas T. Veblen
Year Published:

Native grasslands have been vastly transformed with the expansion of human activities. Applied fire regimes offer conservation-based management an opportunity to enhance remaining grassland biodiversity and secure its persistence into the future.…
Author(s): Paul J. Gordijn, Timothy G. O'Connor
Year Published:

Every year forest fires destroy millions of hectares of land worldwide. Detecting forest fire ignition in the early stages is fundamental to avoid forest fires catastrophes. In this approach, Wireless Sensor Network is explored to develop a…
Author(s): Beatriz Azevedo, Thadeu Brito, José Lima, Ana Pereira
Year Published:

Formal regulation of private property and exploration of 'risk transmission' across ownerships are two popular means for addressing wildfire management at landscape scales. However, existing studies also indicate that a number of barriers exist for…
Author(s): Travis B. Paveglio, Amanda M. Stasiewicz, Catrin Edgeley
Year Published:

In recent years, the importance of soil health for ecosystem functions has come further into the scientific focus (Lehmann et al., 2020). Especially after severe ecosystem disturbances, soil formation has to start anew. Such disturbances, which…
Author(s): Maik Veste, Vincent John Martin Noah Felde, Steven D. Warren, Nicole Pietrasiak
Year Published:

Wildfires are known to be one of the main causes of soil erosion and land degradation, and their impacts on ecosystems and society are expected to increase in the future due to changes in climate and land use. It is therefore vital to mitigate the…
Author(s): Antonio Girona-García, Diana C.S. Vieira, Joana Silva, Cristina Fernández, Peter R. Robichaud, Jan J. Keizer
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Effective wildland fire management increasingly entails fostering shared stewardship of the landscape across ownership boundaries, and enacting collaborative strategies that require management responsibilities distributed among public agencies,…
Author(s): Alex W. Kirkpatrick
Year Published:

We celebrate the 50th anniversary of the Canadian Journal of Forest Research by reflecting on the considerable progress accomplished in select areas of Canadian wildland fire science over the past half century. Specifically, we discuss key…
Author(s): Sean C. P. Coogan, Lori D. Daniels, Den Boychuk, Philip J. Burton, Michael D. Flannigan, Sylvie Gauthier, Victor G. Kafka, Jane Park, B. Mike Wotton
Year Published:

Tower-mounted camera-based wildfire detection systems provide an effective means of early forest fire detection. Historically, tower sites have been identified by foresters and locals with intimate knowledge of the terrain and without the aid of…
Author(s): Andries Heyns, Warren du Plessis, Kevin M. Curtin, Michael Kosch, Gavin Hough
Year Published:

It is difficult to detect forest fires in complex backgrounds owing to the many interfering factors in forest fire smoke. In this paper, a novel method that combines Time Domain Robust Principal Component Analysis (TRPCA) and a Two-Stream Composed…
Author(s): Xiaohu Qiang, Guoxiong Zhou, Aibin Chen, Xin Zhang, Wenzhuo Zhang
Year Published:

Lightning‐caused wildfires are a significant contributor to burned areas, with lightning ignitions remaining one of the most unpredictable aspects of the fire environment. There is a clear connection between fuel moisture and the probability of…
Author(s): Ruth Coughlan, Francesca Di Giuseppe, Claudia Vitolo, Christopher Barnard, Philippe Lopez, Matthias Drusch
Year Published:

A methodology to quantify uncertainty in wildfire forecast using coupled fire-atmosphere computational models is presented. In these models, an atmospheric solver is coupled with a fire-spread module. In order to maintain a low computational cost,…
Author(s): Umberto Ciri, Martand Mayukh Garimella, Federico Bernardoni, R. L. Bennett, Stefano Leonardi
Year Published:

Violent fire-driven convection can manifest as towering pyrocumulus (pyroCu) or pyrocumulonimbus (pyroCb) clouds, which can have devastating impacts on the environment and society. Their associated fire spread is erratic, unpredictable and not…
Author(s): Rachel Badlan, J. Sharples, Jason P. Evans, Richard H. D. McRae
Year Published:

We present an analysis of the spatio-temporal trends derived from long-term burned area (BA) data series. Two global BA products were included in our analysis, the FireCCI51 (2001-2019) and the FireCCILT11 (1982-2018) datasets. The former was…
Author(s): Gonzalo Otón, Jose M. C. Pereira, João M. N. Silva, Emilio Chuvieco
Year Published:

A conceptual model based on the balance of energy in a system composed of a burning cigarette, ambient flow and a porous fuel bed is proposed to study the burning of a single cigarette and the process of fuel bed dehydration, pyrolysis and its…
Author(s): Domingos Xavier Viegas, Ricardo Oliveira, Miguel Almeida, Donghyun Kim
Year Published:

Changing climatic conditions prompt concerns about vegetation response to disturbance under future compared to past conditions. In this long‐term study, we examined soil climate and vegetation differences at lower, mid, and upper elevations in two…
Author(s): Bruce A. Roundy, Jeanne C. Chambers
Year Published: