Cristiane Nunes Francisco - Academia.edu (original) (raw)
Papers by Cristiane Nunes Francisco
Caderno de Geografia, Jul 3, 2018
Revista Brasileira de Climatologia, Sep 24, 2022
Nature Communications
which incorrectly read. 'We find that humid tropical forest lake sediments are a disproportionate... more which incorrectly read. 'We find that humid tropical forest lake sediments are a disproportionately important global OC sink of~80 Tg C yr −1 with implications for climate change.' The correct version replaces this sentence with 'We find that humid tropical forest lake sediments are a disproportionately important global OC sink of~7.4 Tg C yr −1 with implications for climate change.' The original version of this Article contained an error in the 'Tropical drivers of OC accumulation in lakes' section, which incorrectly read. 'Applying our recent OC burial rates to global lake area 13 resulted in an estimated global sink of 79 Tg C yr −1 , which is equivalent to~27% of estimated global carbon dioxide (CO 2) emissions from lake waters to the atmosphere (i.e., 292 Tg C yr −1) 20 ' The correct version replaces this sentence with 'Applying our recent OC burial rates to global lake area 13 resulted in an estimated global sink of 80 Tg C yr −1 , which is equivalent to~27% of estimated global carbon dioxide (CO 2) emissions from lake waters to the atmosphere (i.e., 292 Tg C yr −1) 20 ' This has been corrected in both the PDF and HTML versions of the article.
OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA
La prevención y el combate de incendios forestales han generado una creciente preocupación en Bra... more La prevención y el combate de incendios forestales han generado una creciente preocupación en Brasil en los últimos años debido a la magnitud de los incendios en regiones como el Pantanal, Amazonas y el Cerrado. Este artículo tiene como objetivo resaltar el papel de la teledetección en la detección de incendios forestales tanto en Brasil como en otros lugares del mundo, con especial interés en las regiones de sabana, basándose en la revisión de publicaciones científicas en este campo. Para llevar a cabo esta revisión bibliométrica, se analizaron 5,397 artículos publicados entre 1978 y 2020 con el objetivo de identificar las áreas del conocimiento donde se concentra la producción científica, los lugares donde ocurren los incendios, los métodos utilizados y los autores o grupos de investigación científica con mayor producción. El análisis se realizó mediante siete enfoques, incluyendo la nube de consistencia a partir de resúmenes de artículos, artículos por año, áreas de estudio, país...
Revista Brasileira de Geografia Física, 2018
The Brazilian Forest Code implemented in 2012 kept the definition of preservation areas establish... more The Brazilian Forest Code implemented in 2012 kept the definition of preservation areas established in the former Forest Code (1965) but changed the delimitation parameters especially for Permanent Preservation Area (PPA) on the top of hills. In Rio de Janeiro, The State Environmental Institute (Inea) established a Resolution in 2014 to guide PPA delimitation in the state. This resolution follows most of the policies implemented by the Brazilian Forest Code of 2012 but defined new parameters for determining the hills bases. This study's goal consists on mapping the PPA on top of hill according to both legal devices and assessing the extension and connectivity of the preservation areas on São João river basin, RJ. Following the Forest Code of 2012, 60 fragments of PPA were delimited, with 553 ha of total area and distributed without any connectivity on higher altitudes. Meanwhile, following Resolution of 2014, 324 fragments of PPA were mapped, totalizing 8,420 ha, situated along the watershed and middles altitudes and enhancing connectivity. We conclude that the alteration of the delimitation parameters has an influence on the extension and connectivity of the PPA on top of hills. Our results suggest the need of deeper evaluations in order to guarantee that methodologies for PPA delimitation on top of hills embodied in legal instruments meet the environment functions clearly established for PPA in the 2012 Brazilian Forest Code.
Austral Ecology
Reptiles are an understudied group in road ecology, despite evidence of their high vulnerability ... more Reptiles are an understudied group in road ecology, despite evidence of their high vulnerability to road mortality. Recently, trait‐based models have been demonstrated to be valuable tools for explaining and predicting road mortality risks for birds and mammals. The present study aimed to apply such models to reptiles for the first time. We fitted eight random forest regression models, controlling for different survey design variables, to explain 782 empirical road‐kill rates for Brazilian reptiles and selected the best‐performing model to predict road mortality risks for 572 continental species. The results showed that species that are habitat generalists, omnivorous, viviparous, cathemeral, and have intermediate clutch or litter sizes are at a higher risk of being road‐killed. The relationships for other traits included in our models were uncertain, but our findings suggest that population density and species‐specific behavioural responses to roads and traffic may play an importan...
Climate
Natural disasters have been responsible for thousands of deaths in recent decades that, added to ... more Natural disasters have been responsible for thousands of deaths in recent decades that, added to the environmental, social and economic impacts, require the implementation of prevention strategies. The largest share of disasters is of hydrological origin. In this context, hydrological models are potential alternatives for monitoring and preventing events of this nature. The objective of this study was to analyze the applicability of the semi-distributed model SWAT (Soil and Water Assessment Tool) and the concentrated model SMAP (soil moisture accounting procedure) in predicting the extreme flood event that occurred in Brazil in the mountainous region of Rio de Janeiro in 2011. The results showed that the mean relative error in calibration and validation was 12% and 53% for SMAP, and 18.46% and 88.73% for SWAT, respectively. The better performance of SMAP in validation integrated with its ease of data collection, simplicity of execution and semi-automatic calibration included in its ...
diaadiaeducacao.pr.gov.br
Nature Communications
A significant proportion of carbon (C) captured by terrestrial primary production is buried in la... more A significant proportion of carbon (C) captured by terrestrial primary production is buried in lacustrine ecosystems, which have been substantially affected by anthropogenic activities globally. However, there is a scarcity of sedimentary organic carbon (OC) accumulation information for lakes surrounded by highly productive rainforests at warm tropical latitudes, or in response to land cover and climate change. Here, we combine new data from intensive campaigns spanning 13 lakes across remote Amazonian regions with a broad literature compilation, to produce the first spatially-weighted global analysis of recent OC burial in lakes (over ~50-100-years) that integrates both biome type and forest cover. We find that humid tropical forest lake sediments are a disproportionately important global OC sink of ~80 Tg C yr−1 with implications for climate change. Further, we demonstrate that temperature and forest conservation are key factors in maintaining massive organic carbon pools in tropi...
Revista Brasileira de Cartografia
O objetivo deste trabalho é analisar a influência das Unidades de Conservação (UCs) e das comunid... more O objetivo deste trabalho é analisar a influência das Unidades de Conservação (UCs) e das comunidades tradicionais no processo de mudança de uso e cobertura da terra na Baía da Ilha Grande ao longo dos anos de 2013 a 2018, por meio de modelagem dinâmica espacial. Para realizar a modelagem, foi utilizada a plataforma Dinamica EGO, que realiza simulação do uso e cobertura da terra com o método de pesos de evidência e é baseada no paradigma de autômatos celulares. Foi realizada a simulação espacial para doze unidades hidrológicas de planejamento, dando-se ênfase à observação das taxas de transição e aos pesos atribuídos para as variáveis de UCs e comunidades tradicionais. Nas UCs de Proteção Integral, foi observado um padrão de pesos negativos para as transições de desflorestamento e urbanização, ao passo que as UCs de Uso Sustentável indicam pressão antrópica sobre os ambientes naturais costeiros. As comunidades tradicionais apresentam dinâmicas próprias em seus territórios, sendo obs...
Until decade of 1980, the drainage network mapping was done essentially by photo interpretation. ... more Until decade of 1980, the drainage network mapping was done essentially by photo interpretation. Nowadays, with the Digital Elevation Models (DEM), the drainage network can be automatically extracted. Given the availability of DEM generated by various methods and technologies and with different spatial resolutions, this article aims to evaluate the drainage networks generated by automatic extraction using the DEM currently available: SRTM/EMBRAPA, SRTM/TOPODATA, ASTER, Projeto RJ-25/IBGE and DEM generated by the interpolation of contour lines from topographic map of scale 1:50.000. The study area is located in Macacu River basin, RJ. It was identified significant differences in the indicators used to evaluate the drainage networks. The total length of the channels ranged between 112 and 478 km, the drainage density between 0.74 to 3.76 km / km ² and the hierarchical order of the basin from the 4th to 6th order. Regarding to sinuosity of drainage channels, it tends to be close in all...
This study aims to analyze the environmental zoning as a tool to control urban expansion in envir... more This study aims to analyze the environmental zoning as a tool to control urban expansion in environmentally protected areas using GIS techniques and remote sensing, taking as a test area the case of Itaipu Lagoon Region in Niterói (RJ). The present study was carried out in two parts: preparation of the database and spatial analysis of data in GIS. The first phase was the mapping of land use/land cover the in the years 2000 and 2007 in the region to analyze urban expansion, using aerial photographies and Quickbird data and visual interpretation, and the digitalization of the Environmental Zoning created for the Forest of Itaipu Lagoon by the Urban Plan for the Oceanic Region of Niterói and by the Municipal Decree 9060/03. Finally, in the step of spatial analysis, the intersect between land use/land cover maps and environmental zoning of Itaipu Lagoon Region was performed, creating urban occupation maps for the study area in 2000 and 2007. The environmental zoning of Itaipu Lagoon Reg...
Forest fragmentation is a natural process that increases with the intensification of human activi... more Forest fragmentation is a natural process that increases with the intensification of human activities and affects the vulnerability of the ecosystem. In regards to this process, the Atlantic Forest stands out as one of the most affected biomes. The changes caused by fragmentation can be measured by landscape metrics, while using the software Fragstats 4.1. In this paper, landscape metrics were used to evaluate the vulnerability of the Atlantic Forest in Nova Friburgo County, located on mountainous region in Rio de Janeiro state. 521 forest patches of forest were mapped, corresponding to 56.2 thousand hectares; however 90% of the total patches have an area of less than 50 hectares that represent only 4% of the forest. About 50% of the county is covered by an only single patch of Atlantic Forest, while 10% of the remaining forests are extremely fragmented. In addition, if we only consider the core area and 30 meters as the distance from the edge, the forest area reduces by 20%, and th...
Water Resources Management, 2022
Public policies affecting land use/land cover also have an impact on water resource availability,... more Public policies affecting land use/land cover also have an impact on water resource availability, and hilltop protected areas are a relevant factor in ensuring continued availability of water resources. The legislation ruling the delimitation of protected areas on hilltops has changed at the Brazilian national level in 2012 and in Rio de Janeiro state in 2014. However, these environmental legislation changes did not take into account the feedback effects of restricting protected areas to hilltops on the regularity of hydrological responses in watersheds. As such, this manuscript sought to analyze the contribution of hilltop-only protected areas to continued water availability. We analyzed hydrological responses in the São João river watershed, which provides water for domestic, industrial, and agricultural uses in the Região dos Lagos municipalities of Rio de Janeiro state. Our results show that designating only hilltops as protected areas, as prescribed under the new pieces of legislation, does not prevent abrupt changes in hydrological responses that can lead to changes in streamflow volume and regularity as well as increases in sediment flows, which may compromise drainage systems and continued water supply due to reservoir silting. Therefore, we conclude that protecting hilltops only, as established under current Brazilian legislation, is not sufficient to safeguard the environmental function of maintaining water resource availability.
Revista Brasileira de Recursos Hídricos, 2008
Caderno de Geografia, Jul 3, 2018
Revista Brasileira de Climatologia, Sep 24, 2022
Nature Communications
which incorrectly read. 'We find that humid tropical forest lake sediments are a disproportionate... more which incorrectly read. 'We find that humid tropical forest lake sediments are a disproportionately important global OC sink of~80 Tg C yr −1 with implications for climate change.' The correct version replaces this sentence with 'We find that humid tropical forest lake sediments are a disproportionately important global OC sink of~7.4 Tg C yr −1 with implications for climate change.' The original version of this Article contained an error in the 'Tropical drivers of OC accumulation in lakes' section, which incorrectly read. 'Applying our recent OC burial rates to global lake area 13 resulted in an estimated global sink of 79 Tg C yr −1 , which is equivalent to~27% of estimated global carbon dioxide (CO 2) emissions from lake waters to the atmosphere (i.e., 292 Tg C yr −1) 20 ' The correct version replaces this sentence with 'Applying our recent OC burial rates to global lake area 13 resulted in an estimated global sink of 80 Tg C yr −1 , which is equivalent to~27% of estimated global carbon dioxide (CO 2) emissions from lake waters to the atmosphere (i.e., 292 Tg C yr −1) 20 ' This has been corrected in both the PDF and HTML versions of the article.
OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA
La prevención y el combate de incendios forestales han generado una creciente preocupación en Bra... more La prevención y el combate de incendios forestales han generado una creciente preocupación en Brasil en los últimos años debido a la magnitud de los incendios en regiones como el Pantanal, Amazonas y el Cerrado. Este artículo tiene como objetivo resaltar el papel de la teledetección en la detección de incendios forestales tanto en Brasil como en otros lugares del mundo, con especial interés en las regiones de sabana, basándose en la revisión de publicaciones científicas en este campo. Para llevar a cabo esta revisión bibliométrica, se analizaron 5,397 artículos publicados entre 1978 y 2020 con el objetivo de identificar las áreas del conocimiento donde se concentra la producción científica, los lugares donde ocurren los incendios, los métodos utilizados y los autores o grupos de investigación científica con mayor producción. El análisis se realizó mediante siete enfoques, incluyendo la nube de consistencia a partir de resúmenes de artículos, artículos por año, áreas de estudio, país...
Revista Brasileira de Geografia Física, 2018
The Brazilian Forest Code implemented in 2012 kept the definition of preservation areas establish... more The Brazilian Forest Code implemented in 2012 kept the definition of preservation areas established in the former Forest Code (1965) but changed the delimitation parameters especially for Permanent Preservation Area (PPA) on the top of hills. In Rio de Janeiro, The State Environmental Institute (Inea) established a Resolution in 2014 to guide PPA delimitation in the state. This resolution follows most of the policies implemented by the Brazilian Forest Code of 2012 but defined new parameters for determining the hills bases. This study's goal consists on mapping the PPA on top of hill according to both legal devices and assessing the extension and connectivity of the preservation areas on São João river basin, RJ. Following the Forest Code of 2012, 60 fragments of PPA were delimited, with 553 ha of total area and distributed without any connectivity on higher altitudes. Meanwhile, following Resolution of 2014, 324 fragments of PPA were mapped, totalizing 8,420 ha, situated along the watershed and middles altitudes and enhancing connectivity. We conclude that the alteration of the delimitation parameters has an influence on the extension and connectivity of the PPA on top of hills. Our results suggest the need of deeper evaluations in order to guarantee that methodologies for PPA delimitation on top of hills embodied in legal instruments meet the environment functions clearly established for PPA in the 2012 Brazilian Forest Code.
Austral Ecology
Reptiles are an understudied group in road ecology, despite evidence of their high vulnerability ... more Reptiles are an understudied group in road ecology, despite evidence of their high vulnerability to road mortality. Recently, trait‐based models have been demonstrated to be valuable tools for explaining and predicting road mortality risks for birds and mammals. The present study aimed to apply such models to reptiles for the first time. We fitted eight random forest regression models, controlling for different survey design variables, to explain 782 empirical road‐kill rates for Brazilian reptiles and selected the best‐performing model to predict road mortality risks for 572 continental species. The results showed that species that are habitat generalists, omnivorous, viviparous, cathemeral, and have intermediate clutch or litter sizes are at a higher risk of being road‐killed. The relationships for other traits included in our models were uncertain, but our findings suggest that population density and species‐specific behavioural responses to roads and traffic may play an importan...
Climate
Natural disasters have been responsible for thousands of deaths in recent decades that, added to ... more Natural disasters have been responsible for thousands of deaths in recent decades that, added to the environmental, social and economic impacts, require the implementation of prevention strategies. The largest share of disasters is of hydrological origin. In this context, hydrological models are potential alternatives for monitoring and preventing events of this nature. The objective of this study was to analyze the applicability of the semi-distributed model SWAT (Soil and Water Assessment Tool) and the concentrated model SMAP (soil moisture accounting procedure) in predicting the extreme flood event that occurred in Brazil in the mountainous region of Rio de Janeiro in 2011. The results showed that the mean relative error in calibration and validation was 12% and 53% for SMAP, and 18.46% and 88.73% for SWAT, respectively. The better performance of SMAP in validation integrated with its ease of data collection, simplicity of execution and semi-automatic calibration included in its ...
diaadiaeducacao.pr.gov.br
Nature Communications
A significant proportion of carbon (C) captured by terrestrial primary production is buried in la... more A significant proportion of carbon (C) captured by terrestrial primary production is buried in lacustrine ecosystems, which have been substantially affected by anthropogenic activities globally. However, there is a scarcity of sedimentary organic carbon (OC) accumulation information for lakes surrounded by highly productive rainforests at warm tropical latitudes, or in response to land cover and climate change. Here, we combine new data from intensive campaigns spanning 13 lakes across remote Amazonian regions with a broad literature compilation, to produce the first spatially-weighted global analysis of recent OC burial in lakes (over ~50-100-years) that integrates both biome type and forest cover. We find that humid tropical forest lake sediments are a disproportionately important global OC sink of ~80 Tg C yr−1 with implications for climate change. Further, we demonstrate that temperature and forest conservation are key factors in maintaining massive organic carbon pools in tropi...
Revista Brasileira de Cartografia
O objetivo deste trabalho é analisar a influência das Unidades de Conservação (UCs) e das comunid... more O objetivo deste trabalho é analisar a influência das Unidades de Conservação (UCs) e das comunidades tradicionais no processo de mudança de uso e cobertura da terra na Baía da Ilha Grande ao longo dos anos de 2013 a 2018, por meio de modelagem dinâmica espacial. Para realizar a modelagem, foi utilizada a plataforma Dinamica EGO, que realiza simulação do uso e cobertura da terra com o método de pesos de evidência e é baseada no paradigma de autômatos celulares. Foi realizada a simulação espacial para doze unidades hidrológicas de planejamento, dando-se ênfase à observação das taxas de transição e aos pesos atribuídos para as variáveis de UCs e comunidades tradicionais. Nas UCs de Proteção Integral, foi observado um padrão de pesos negativos para as transições de desflorestamento e urbanização, ao passo que as UCs de Uso Sustentável indicam pressão antrópica sobre os ambientes naturais costeiros. As comunidades tradicionais apresentam dinâmicas próprias em seus territórios, sendo obs...
Until decade of 1980, the drainage network mapping was done essentially by photo interpretation. ... more Until decade of 1980, the drainage network mapping was done essentially by photo interpretation. Nowadays, with the Digital Elevation Models (DEM), the drainage network can be automatically extracted. Given the availability of DEM generated by various methods and technologies and with different spatial resolutions, this article aims to evaluate the drainage networks generated by automatic extraction using the DEM currently available: SRTM/EMBRAPA, SRTM/TOPODATA, ASTER, Projeto RJ-25/IBGE and DEM generated by the interpolation of contour lines from topographic map of scale 1:50.000. The study area is located in Macacu River basin, RJ. It was identified significant differences in the indicators used to evaluate the drainage networks. The total length of the channels ranged between 112 and 478 km, the drainage density between 0.74 to 3.76 km / km ² and the hierarchical order of the basin from the 4th to 6th order. Regarding to sinuosity of drainage channels, it tends to be close in all...
This study aims to analyze the environmental zoning as a tool to control urban expansion in envir... more This study aims to analyze the environmental zoning as a tool to control urban expansion in environmentally protected areas using GIS techniques and remote sensing, taking as a test area the case of Itaipu Lagoon Region in Niterói (RJ). The present study was carried out in two parts: preparation of the database and spatial analysis of data in GIS. The first phase was the mapping of land use/land cover the in the years 2000 and 2007 in the region to analyze urban expansion, using aerial photographies and Quickbird data and visual interpretation, and the digitalization of the Environmental Zoning created for the Forest of Itaipu Lagoon by the Urban Plan for the Oceanic Region of Niterói and by the Municipal Decree 9060/03. Finally, in the step of spatial analysis, the intersect between land use/land cover maps and environmental zoning of Itaipu Lagoon Region was performed, creating urban occupation maps for the study area in 2000 and 2007. The environmental zoning of Itaipu Lagoon Reg...
Forest fragmentation is a natural process that increases with the intensification of human activi... more Forest fragmentation is a natural process that increases with the intensification of human activities and affects the vulnerability of the ecosystem. In regards to this process, the Atlantic Forest stands out as one of the most affected biomes. The changes caused by fragmentation can be measured by landscape metrics, while using the software Fragstats 4.1. In this paper, landscape metrics were used to evaluate the vulnerability of the Atlantic Forest in Nova Friburgo County, located on mountainous region in Rio de Janeiro state. 521 forest patches of forest were mapped, corresponding to 56.2 thousand hectares; however 90% of the total patches have an area of less than 50 hectares that represent only 4% of the forest. About 50% of the county is covered by an only single patch of Atlantic Forest, while 10% of the remaining forests are extremely fragmented. In addition, if we only consider the core area and 30 meters as the distance from the edge, the forest area reduces by 20%, and th...
Water Resources Management, 2022
Public policies affecting land use/land cover also have an impact on water resource availability,... more Public policies affecting land use/land cover also have an impact on water resource availability, and hilltop protected areas are a relevant factor in ensuring continued availability of water resources. The legislation ruling the delimitation of protected areas on hilltops has changed at the Brazilian national level in 2012 and in Rio de Janeiro state in 2014. However, these environmental legislation changes did not take into account the feedback effects of restricting protected areas to hilltops on the regularity of hydrological responses in watersheds. As such, this manuscript sought to analyze the contribution of hilltop-only protected areas to continued water availability. We analyzed hydrological responses in the São João river watershed, which provides water for domestic, industrial, and agricultural uses in the Região dos Lagos municipalities of Rio de Janeiro state. Our results show that designating only hilltops as protected areas, as prescribed under the new pieces of legislation, does not prevent abrupt changes in hydrological responses that can lead to changes in streamflow volume and regularity as well as increases in sediment flows, which may compromise drainage systems and continued water supply due to reservoir silting. Therefore, we conclude that protecting hilltops only, as established under current Brazilian legislation, is not sufficient to safeguard the environmental function of maintaining water resource availability.
Revista Brasileira de Recursos Hídricos, 2008
Proceedings - VII Workshop on Biosystems Engineering / WEB 7.0, 2021
The Workshop on Biosystems Engineering (WEB) is an academic event that stated tacking our interna... more The Workshop on Biosystems Engineering (WEB) is an academic event that stated tacking our internal research and students, focused in to present and discuss the research results of the Biosystems Engineering Master Program (PGEB).
Over the years, the event have grown, expanding far over the boundaries of the Fluminense Federal University, bringing close many people and researcher interested in the area of Environmental Sciences. For this 7th edition, bringing invited speakers and lectures from other states. Due to the Worldwide COVID-19 pandemic situation, the event was held on-line been broadcasted on the YouTube platform.
This year’s edition main theme was: “Food safety and the environment: new challenges during and post-pandemic” (Segurança alimentar e meio ambiente: os novos desafios durante e pós-pandemia in Portugese), being held from the 09th up to 10th November 2021.
In total there were 190 inscriptions, been held: 5 lectures, 4 short courses, 2 round tables (“Fires: Consequences on climate variability and the flexibility of Environmental Laws” and “Challenges of Food Production in Face of Climate Change”), all accepted papers were invited to submit an online presentation, available as a playlist as a virtual discussion Forum (39 abstracts accepted) available at the PGEB Youtbe Channel at: https://www.youtube.com/c/PGEBUFF/videos
The WEB, as known, had consolidated itself as one of the main scientific events of UFF, even in time of COVID-19 pandemic, integrating students, from graduated, undergraduate or even alumni; as well as Professors from several different academic areas, from UFF and from other institutions worldwide.
The Organizing Committee