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Authors = Danielle Celentano ORCID = 0000-0003-4888-3693

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17 pages, 3649 KiB  
Article
Forest Fragmentation and Fires in the Eastern Brazilian Amazon–Maranhão State, Brazil
by Celso H. L. Silva-Junior, Arisson T. M. Buna, Denilson S. Bezerra, Ozeas S. Costa, Adriano L. Santos, Lidielze O. D. Basson, André L. S. Santos, Swanni T. Alvarado, Catherine T. Almeida, Ana T. G. Freire, Guillaume X. Rousseau, Danielle Celentano, Fabricio B. Silva, Maria S. S. Pinheiro, Silvana Amaral, Milton Kampel, Laura B. Vedovato, Liana O. Anderson and Luiz E. O. C. Aragão
Fire 2022, 5(3), 77; https://doi.org/10.3390/fire5030077 - 5 Jun 2022
Cited by 20 | Viewed by 8088
Abstract
Tropical forests provide essential environmental services to human well-being. In the world, Brazil has the largest continuous area of these forests. However, in the state of Maranhão, in the eastern Amazon, only 24% of the original forest cover remains. We integrated and analyzed [...] Read more.
Tropical forests provide essential environmental services to human well-being. In the world, Brazil has the largest continuous area of these forests. However, in the state of Maranhão, in the eastern Amazon, only 24% of the original forest cover remains. We integrated and analyzed active fires, burned area, land use and land cover, rainfall, and surface temperature datasets to understand forest fragmentation and forest fire dynamics from a remote sensing approach. We found that forest cover in the Maranhão Amazon region had a net reduction of 31,302 km2 between 1985 and 2017, with 63% of losses occurring in forest core areas. Forest edges extent was reduced by 38%, while the size of isolated forest patches increased by 239%. Forest fires impacted, on average, around 1031 ± 695 km2 year−1 of forest edges between 2003 and 2017, the equivalent of 60% of the total burned forest in this period. Our results demonstrated that forest fragmentation is an important factor controlling temporal and spatial variability of forest fires in the eastern Amazon region. Thus, both directly and indirectly, forest fragmentation can compromise biodiversity and carbon stocks in this Amazon region. Full article
(This article belongs to the Special Issue Vegetation Fires in South America)
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22 pages, 820 KiB  
Article
Ecosystem Responses to Partial Harvesting in Eastern Boreal Mixedwood Stands
by Suzanne Brais, Timothy T. Work, Émilie Robert, Christopher D. O'Connor, Manuella Strukelj, Arun Bose, Danielle Celentano and Brian D. Harvey
Forests 2013, 4(2), 364-385; https://doi.org/10.3390/f4020364 - 22 May 2013
Cited by 29 | Viewed by 8898
Abstract
Partial harvesting has been proposed as a key aspect to implementing ecosystem management in the Canadian boreal forest. We report on a replicated experiment located in boreal mixedwoods of Northwestern Quebec. In the winter of 2000–2001, two partial harvesting treatments, one using a [...] Read more.
Partial harvesting has been proposed as a key aspect to implementing ecosystem management in the Canadian boreal forest. We report on a replicated experiment located in boreal mixedwoods of Northwestern Quebec. In the winter of 2000–2001, two partial harvesting treatments, one using a dispersed pattern, and a second, which created a (400 m2) gap pattern, were applied to a 90-year-old aspen-dominated mixed stand. The design also included a clear cut and a control. Over the course of the following eight years, live tree, coarse woody debris, regeneration and ground beetles were inventoried at variable intervals. Our results indicate that all harvesting treatments created conditions favorable to balsam fir (Abies balsamea) sapling growth and trembling aspen (Populus tremuloides) sapling recruitment. However, balsam fir and trembling aspen regeneration and ground beetles response to gap cuts were closer to patterns observed in clear cuts than in dispersed harvesting. The underlying reasons for these differing patterns can be linked to factors associated with the contrasting light regimes created by the two partial harvesting treatments. The study confirms that partially harvesting is an ecologically sound approach in boreal mixedwoods and could contribute to maintaining the distribution of stand ages at the landscape level. Full article
(This article belongs to the Special Issue Forest Restoration and Regeneration)
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