@Article{BroggioSilNasVilAra:2024:QuLaFr,
author = "Broggio, Igor S. and Silva J{\'u}nior, Celso Henrique Leite and
Nascimento, Marcelo T. and Villela, Dora M. and Arag{\~a}o, Luiz
Eduardo Oliveira e Cruz de",
affiliation = "{Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF)}
and {Amazon Environmental Research Institute} and {Universidade
Estadual do Norte Fluminense Darcy Ribeiro (UENF)} and
{Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF)}
and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Quantifying landscape fragmentation and forest carbon dynamics
over 35 years in the Brazilian Atlantic Forest",
journal = "Environmental Research Letters",
year = "2024",
volume = "19",
number = "3",
pages = "e034047",
month = "Mar.",
keywords = "deforestation, degradation, ecosystem services, forest
restoration, land-use change.",
abstract = "The Brazilian Atlantic Forest (AF) covers 13% of Brazil but
retains only 26% of its original forest area. Utilizing a
Morphological Spatial Pattern Analysis (MSPA), we generated 30 m
spatial resolution fragmentation maps for old-growth and secondary
forests across the AF. We quantified landscape fragmentation
patterns and carbon (C) dynamics over 35 years using MapBiomas
data between the years 1985 and 2020. We found that from 1985 to
2020 the forest suffered continuous fragmentation, losing core
(nuclei forest fragments) and bridge (areas that connect different
core areas) components of the landscape. About 87.5% (290 468.4
km2) of the remaining forest lacked core areas, with bridges
(38.0%) and islets (small, isolated fragments) (35.4%) being
predominant. Secondary forests (1986-2020) accounted for 99 450.5
km2 and played a significant role in fragmentation pattern,
constituting 44.9% of the areas affected by edge effects
(perforation, edge, bridge, and loop), 53.7% of islets, and
comprising only 1.4% of core forest. Additionally, regeneration by
secondary forests contributed to all fragmentation classes in
2020. Even with the regrowth of forests, the total forested area
in the biome did not increase between 1985 and 2020. Deforestation
emissions reached 818 Tg CO2, closely paralleled by edge effects
emissions at 810 Tg CO2, highlighting a remarkable parity in C
emissions between the two processes. Despite slow changes, AF
biome continues to lose its C stocks. We estimated that around
1.96 million hectares (19 600 km2) of regenerated forest would be
required to offset the historical C emissions over the analysed
period. Hence, MSPA can support landscape monitoring, optimizing
natural or active forest regeneration to reduce fragmentation and
enhance C stocks. Our study's findings are critical for guiding
land-use policies focusing on minimizing emissions, promoting
forest regrowth, and monitoring its permanence. This study offers
biome scale, spatially explicit information, critical for AF
conservation and management.",
doi = "10.1088/1748-9326/ad281c",
url = "http://dx.doi.org/10.1088/1748-9326/ad281c",
issn = "1748-9326",
language = "en",
targetfile = "Broggio_2024_Environ._Res._Lett._19_034047.pdf",
urlaccessdate = "10 maio 2024"
}