Ana Paula Dalla Corte

Federal University of Paraná | UFPR · Departamento de Ciências Florestais

Forest cover of the Maringá municipality, located in northern Parana State, was mapped in this study. Mapping was carried out by using high-resolution HRC sensor imagery and medium resolution CCD sensor imagery from the CBERS satellite. Images were georeferenced and forest vegetation patches (TOFs - trees outside forests) were classified using two...

The sources of uncertainty in wall-to-wall AGB maps propagate from the tree to pixel, but uncertainty due to forest cover mapping is rarely incorporated into the error propagation process. This study aimed to (1) elaborate an analytical procedure to incorporate forest-mapping-related uncertainty into the error propagation from plot and pixel predic...

Background The objective of this study was to detect native trees from different flight configurations and smoothing techniques in Canopy Height Models (CHMs) in a native remnant in the municipality of Curitiba, State of Paraná, Brazil. To do so, eight flights were carried out with a Phantom 4, with two flight planning applications (Litchi and Pix4...

p>As alterações no uso e cobertura dos solos florestais podem causar mudanças no balanço de biomassa e carbono dos sistemas, culminando no aumento das emissões de gases de efeito estufa. As áreas com cultivos alternativos, resultantes de alterações na cobertura vegetal, aparentam ser pouco avaliadas. Assim, o objetivo desta pesquisa foi realizar um...

In order to fulfill Brazil’s climate change mitigation goals and uphold its environmental commitments, it is crucial to have knowledge of volume, biomass, and carbon stocks of its native forests. This study aimed to evaluate the potential of the forest hubs from the state of Paraná, Brazil, towards climate change mitigation efforts. The Guarapuava...

________________________________________________________________________________________ Resumo Diversidade de espécies exóticas em dois fragmentos florestais urbanos de Curitiba, Paraná. Os fragmentos florestais urbanos (FFU) enfrentam desafios relacionados à mudança do clima e impactos antrópicos sobre os ecossistemas naturais e sua biodiversidad...

Urban forest patches (UFP) face challenges related to climate change and anthropic impacts on natural ecosystems and their biodiversity, mainly due to the presence of invasive exotic species. The objective of this research was to characterize the invasive flora of two urban forest patches located in Curitiba, Paraná. The research was conducted in t...

O objetivo deste trabalho foi avaliar se o desempenho da estimativa do volume individual para Pinus taeda L. por um estimador por razão apresenta melhores resultados em comparação com a estimativa obtida pelo modelo volumétrico de Schumacher-Hall. Foram utilizados dados de cubagem de 200 árvores, com idades que variaram de 5 a 18 anos, com diâmetro...

Endangered species play an important role in studies on the quantification of biomass and carbon since, as their cutting is prohibited by law, they accumulate an essential stock in the forest. Thus, this work aimed to bring a scenario of the research being carried out with this theme with Araucaria angustifolia and other species of the same genus....

As rodovias da região amazônica constituem um dos principais vetores que impulsionam a ocupação territorial e consequente perda da cobertura florestal. Como forma de monitorar o desflorestamento por corte raso na Amazônia Legal, o Projeto de Monitoramento do Desflorestamento na Amazônia Legal por Satélite (PRODES) tem monitorado desde o ano de 1988...

The morphometric study of forest species contributes to the understanding of an individual's development based on variables such as diameter at breast height (DBH), height and information on the crown of the tree. The main morphometric characteristics of the trees are the Crown Ratio (CR), Degree of Slenderness (DS), Salience Index (SI), Coverage I...

Áreas destinadas à conservação desempenham papel essencial na regulação global do clima, pois, as florestas são o principal sumidouro de carbono terrestre, uma vez que, capturam dióxido de carbono da atmosfera e armazenam o carbono em sua biomassa, principalmente na madeira. O objetivo deste trabalho foi analisar a dinâmica nos estoques de volume,...

The growing interest in integrated agricultural production systems has increased the search for information about the arboreal component, thus, information about the correlations and associations between dendrometric and allometric variables are important. This study investigated the results obtained through simple correlation analysis and its brea...

Theoretical framework: Site index cannot be generalized to different eucalyptus clonal stands, since each clone has a distinct growth and yield pattern, in which categorical variables may add site-specific effects to assess model's interregional variability. Objective: This study aimed to assess the statistical performance of site index, as well as...

Urban forests provide direct and indirect benefits to human well-being that are increasingly captured in residential property values. Remote Sensing (RS) can be used to measure a wide range of forest and vegetation parameters that allows for a more detailed and better understanding of their specific influences on housing prices. Herein, through a s...

The use of remote sensing images obtained by unmanned aerial vehicle (UAV) systems enables measuring the morphometry of the tree canopy to estimate the volume stock in the Amazon Forest. In this study, we used RGB images from a low-cost UAV to map tree species and extract volumetric stock estimates in an Amazonian Forest. Individual tree crowns (IT...

Researchers on forest biomass seek to develop or find methods of simple application, whose estimators reveals the best performance and provide the additivity of the biomass parts. Tree biomass normally is obtained by scaling tree parts (stem, branches, and leaves) separately. When the biomass is modeled by parts of the tree, their sum does not matc...

Protecting and enhancing forest carbon sinks is considered a natural solution for mitigating climate change. However, the increasing frequency, intensity, and duration of droughts due to climate change can threaten the stability and growth of existing forest carbon sinks. Extreme droughts weaken plant hydraulic systems, can lead to tree mortality e...

Quantitative data obtained from native forests is costly and time-consuming. Thus, alternative measurement methods need to be developed to provide reliable information, especially in Atlantic Rain Forests. In this study we evaluated the hypothesis that the combination of an Airborne Laser Scanner (ALS) and an Unmanned Aerial Vehicle (UAV) can provi...

Abstract The aim was to determine the productive capacity of a forest site by applying different methods of fitting, combined with geostatistical techniques, to stands of Eucalyptus sp. in a tropical region of Brazil. Data were collected from 845 plots of a continuous forest inventory over four years. The classification of local production capacity...

Understanding how studies have been carried out in the region helps to understand the Amazon rainforest potential in mitigating climate change. In addition, evaluating scientific production is essential to verify the main methods and places researched. Thus, this study objective was to build an overview and identify the main gaps regarding research...

Detailed knowledge of teak stand structure is necessary for sustainable management plans. The integration of remote sensing variables with geostatistical modeling in teak forest stands has not been sufficiently studied and, therefore, the aim was to model the spatial distribution of teak stand variables, adding covariables. The study was carried ou...

Dear Colleagues, This Special Issue aims to promote and support advancements in research activities in the domain of individual tree detection (ITD), which has benefited tremendously from the proliferation of low-cost unmanned aerial vehicles (UAVs) and data science industry in recent years. Currently, ITD finds applications in multiple sub-sector...

AIMS Brain metastases (BMs) are common in lung cancer and carry adverse prognostic significance. Such occurrences should be reviewed through a regional specialist neuro-oncology MDT. Our aim is to highlight which aspects of the pathway could be contributing to delays in the treatment of lung cancer patients with BMs. METHOD All lung cancer patient...

AIMS The aim of this project was to review the outcomes of patients referred via our regional neuro-oncology pathway who received neurosurgery, SRS, whole brain radiotherapy (WBRT), chemotherapy (SACT) or best supportive care (BSC). METHOD All lung cancer patients discussed at our Neuro-Oncology MDT in 2020 were identified. Patient characteristics...

In this paper, we estimated the methane emissions by the disposal of sanitary and domestic-use paper consumed throughout Brazil from 1901 to 2016. The apparent consumption of this type of paper from 1961 to 2016, calculated from the data of the FAOSTAT system, was used to estimate the amount of waste disposed of annually in three site categories: s...

Recognition of landscape configuration is essential to define priority sites most likely to succeed in forest restoration. The research aimed to reduce uncertainties regarding the feasibility of ecological restoration processes by applying landscape metrics to support priority areas for restoration in three watersheds located in the northwest regio...

Este trabalho analisou as distribuições diamétricas antes e após intervenções silviculturais em uma área de floresta tropical úmida da Amazônia no estado do Amapá, Brasil. O objetivo consistiu em entender de que modo a distribuição diamétrica da floresta foi recuperada depois dos tratamentos silviculturais entre 1984 e 2011, um intervalo de 27 anos...

This study analyzes the Amazon rainforest in the Brazilian state of Rondônia from the perspective of the forest regeneration observed from 2008 to 2018. The research examines the regeneration’s contribution to the landscape’s morphological spatial pattern within the state’s geographical limits, conservation units, indigenous lands, and the unprotec...

Understanding the changes in early growth efficiency (GE, growth/leaf area) may improve forest production through the selection of appropriate genotypes at early stages. We inves-tigated different early growth responses of genotypes of Eucalyptus globulus (7), E. nitens(3), and E. nitens × E globulus (E. gloni) (7) in south-central Chile. To evalua...

Remote sensing images obtained by unoccupied aircraft systems (UAS) across different seasons enabled capturing of species-specific phenological patterns of Amazonian trees. The application of UAS multi-season images to classify tropical tree species is still poorly understood. In this study, we used RGB images from different seasons obtained by a l...

This article introduces the Tropical Biomass & Carbon Application-the 'TB&C App', a web application available on the permanent link www.tropicalbiomass.com. The TB&C App requires as input attributes 'the smallest and largest diameters', 'number of trees ha − 1' , basal area ha − 1 , and 'parameters of the diameter (beta) distribution' describing st...

Cattle ranching is the primary land-use of deforested areas in the Brazilian Amazon. Deforestation precedes pasture establishment, implying tremendous amounts of greenhouse gas emissions caused by carbon stock losses. Despite several studies addressing carbon storage in forests, there is a lack of data regarding cultivated pastures. Hence, the esti...

A obra “Aplicações do LiDAR para Inventário Florestal – Enfoque Unidade de Área” trata da utilização de sensoriamento remoto LiDAR para o inventário de florestas plantadas com um amplo conteúdo teórico e prático, exemplos de aplicações, métodos estatísticos avançados e ilustrações didáticas.

Individual tree attributes, such as stem volume and biomass, are usually predicted by using traditional field-derived allometric models. However, these models are derived from data collected from small areas and lack a level of detail of tree components (e.g., stem, branches, and leaves). Remote sensing techniques such as the Quantitative Structure...

Secondary forests are portions of forest areas that were previously deforested. In general, secondary forests are characterized by fast-growing species, an alternative for reducing net carbon emissions and mitigating climate change; However, these forest environments are still poorly studied. In this context, this work aimed to adjust predictive mo...

Lidar point clouds have been frequently used in forest inventories. The higher point density has provided better representation of trees in forest plantations. So we developed a new approach to fill this gap in the integrated crop-livestock-forest system, the sampling forest inventory, which uses the principles of individual tree detection applied...

A significant proportion of deforestation in the Amazon rainforest is for the expansion of agriculture and livestock. Several studies have been dedicated to determining the carbon stock in natural forests, however agricultural areas are still poorly researched. This work aimed to quantify the above and belowground carbon stock (CS) in soybean plant...

Quantifying fuel load over large areas is essential to support integrated fire management initiatives in fire-prone regions to preserve carbon stock, biodiversity and ecosystem functioning. It also allows a better understanding of global climate regulation as a potential carbon sink or source. Large area assessments usually require data from spaceb...

This article introduces the Tropical Biomass & Carbon Application-the 'TB&C App', a web application available on the permanent link www.tropicalbiomass.com. The TB&C App requires as input attributes 'the smallest and largest diameters', 'number of trees ha − 1' , basal area ha − 1 , and 'parameters of the diameter (beta) distribution' describing st...

Geo-technological information is increasingly used to monitor forest stands through analytical techniques and procedures for large-scale plantations. The objective of this study was to evaluate the relationship between spectral variables (through vegetation index) using images from the RapidEye satellite, dendrometric variables and the uniformity i...

A floresta amazônica brasileira concentra um dos maiores estoques de biomassa viva e carbono no planeta. Dada sua importância como sumidouro de carbono, estudos de quantificação de biomassa nesta floresta tropical são imprescindíveis para se buscar um maior entendimento nas questões ligadas às mudanças climáticas. Entretanto, há de se destacar que...

The Brazilian Atlantic Forest is a global biodiversity hotspot and has been extensively mapped using satellite remote sensing. However, past mapping focused on overall forest cover without consideration of keystone plant resources such as Araucaria angustifolia. A. angustifolia is a critically endangered coniferous tree that is essential for suppor...

The critically endangered West Pacific Ocean subpopulation of the leatherback turtles has faced a significant population decline in the past decades. One of the reasons for this is the loss of nesting habitats in the region. In this pilot study, turtle nesting habitats are remotely monitored employing satellite imageries. This methodology has been...

The mathematical models used applying the Nonlinear Seemingly Unrelated Regressions (NSUR) or Weighted Nonlinear Seemingly Unrelated Regressions (WNSUR) methodologies can contribute to generate acceptable and reliable estimates of total aboveground biomass and its constituent parts, which are needed to implement forest management strategies to main...

In this study, we estimate the forest stock volume by multiplying the number of trees detected remotely by the estimated mean individual volume of the population (individual approach). A comparison was made with the conventional inventory method (area approach), which included 100 simulations of a simple random sampling process and a Bootstrap resa...

Remote sensors, onboard orbital platforms, aircraft, or unmanned aerial vehicles (UAVs) have emerged as a promising technology to enhance our understanding of changes in ecosystem composition, structure, and function of forests, offering multi-scale monitoring of forest restoration. UAV systems can generate high-resolution images that provide accur...

Biomass and wood volume estimates in forest ecosystems are fundamental to a variety of studies focusing at forest dynamics. These estimates are usually carried out through forest inventory techniques which rely upon statistical computations. This work aims at providing a new methodological approach to forest inventory processing when data is georef...

Applications of unmanned aerial vehicles (UAVs) have proliferated in the last decade due to the technological advancements on various fronts such as structure-from-motion (SfM), machine learning, and robotics. An important preliminary step with regard to forest inventory and management is individual tree detection (ITD), which is required to calcul...

Forests play an important role in climate change, acting as a source or sink of carbon. There is, however, a lack of data regarding the carbon production from litterfall in tropical forests. The Atlantic Forest is one of the most distinguished forest types in Brazil, encompassing the Araucaria Forest. In this study, we assessed the seasonal carbon...

Forest Management in the Brazilian Amazon has social, economic and environmental relevance, as it allows for the sustainable use of natural resources, while at the same time conserving a majority of the ecological processes of the forest. Among forest operations, the construction of new roads is essential for effective sustainable forest management...

Accurate forest biomass estimates require the selection of appropriate models of individual trees. Thus, two properties are required in tree biomass modeling: (1) additivity of biomass components and (2) estimator efficiency. This study aimed to develop a system of equations to estimate young eucalyptus aboveground biomass and guarantee additivity...

Necromass is crucial to understanding both carbon and nutrient cycling throughout the forest. In this study, we assessed the carbon stock and spatial distribution of necromass components in an Atlantic rainforest, southern Brazil, one hotspot of biodiversity. Necromass comprised: standing dead trees and stumps (SWN), large-sized woody necromass (LW...

Precise assessments of forest species’ composition help analyze biodiversity patterns, estimate wood stocks, and improve carbon stock estimates. Therefore, the objective of this work was to evaluate the use of high-resolution images obtained from Unmanned Aerial Vehicle (UAV) for the identification of forest species in areas of forest regeneration...

Replanting trees helps with avoiding desertification, reducing the chances of soil erosion and flooding, minimizing the risks of zoonotic disease outbreaks, and providing ecosystem services and livelihood to the indigenous people, in addition to sequestering carbon dioxide for mitigating climate change. Consequently, it is important to explore new...

The population growth and the climate changes impose challenges to society, especially regarding food supply and the maintenance of desirable soil conditions. Besides, it is necessary to reduce greenhouse gas emissions. Hence, there is a necessity of studies addressing the understanding of soil conditions under different land uses, as soils can bec...