This article aimed to determine a workflow for more efficient large-scale crop mapping using a time series of images from the Sentinel-2 Satellite, statistical methods of attribute selection, and machine learning. The proposed methodology explores the best possible combination of spectral variables related to vegetation (16 vegetation indices in th...
O município de Boa Vista do Tupim é um dos Distritos Agrotecnológicos (DATs) associado ao “Centro de Ciência para o Desenvolvimento em Agricultura Digital –Semear Digital”. O Centro almeja desenvolver tecnologias digitais e suas aplicações, para elevara produtividade agrícola de forma mais sustentável. O objetivo deste estudo inicial foi analisar a...
Published in The Science of the total environment
The global prevalence of mercury (Hg) contamination and its complex biogeochemical cycling has resulted in elevated Hg concentrations in biota in remote and pristine environments. However, there is uncertainty in the relative importance of Hg deposition and landscape factors that control Hg cycling and bioaccumulation. To address this, we measured ...
Published in Catena
The preservation and augmentation of soil organic carbon (SOC) stocks is critical to designing climate change mitigation strategies and alleviating global warming. However, due to the susceptibility of SOC stocks to environmental and topo-climatic variability and changes, it is essential to obtain a comprehensive understanding of the state of curre...
O balanço hídrico (BH) contabiliza os volumes de entrada e saída de água em determinado intervalo de tempo, clima e sistemas de uso e cobertura da terra. Estimar esses volumes ajuda a avaliar a necessidade de implementar estratégias adequadas de gerenciamento dos recursos hídricos superficiais e subsuperficiais, permite obter conclusões estratégica...
To estimate the water volumes of the main components of BH in a Haplic Cambisol in forests and pastures in the Bonfim River basin, mountainous region of RJ. Estimar os volumes de água dos principais componentes do BH num Cambissolo Háplico em florestas e pastagens na bacia do Rio Bonfim, região serrana do RJ. / Também publicado em português. Título...
Serious games have become key tools to study the water management in the presence of stakeholders. Such role-playing sessions bring people around game boards to facilitate discussions beyond traditional positions and (sometimes) to trigger positive changes in both representation and behavior. Usually drawn in a synthetic manner, the board (also cal...
Evaluating how land cover is being transformed is essential to identify patterns necessary to infer the change trajectories and the driving factors. This study considers the case of Nigeria, where various natural ecosystems are being converted and for which a current national scale assessment at high spatial resolution is lacking. Producing 30 m La...
L’objectif de notre étude est d’analyser la dynamique d’occupation des terres. Pource faire, des données primaires et secondaires sont utilisées. Au total 384 ménagesont été enquêtés par des questionnaires afin d’apprécier la perception descommunautés locales cette dynamique. Huit entretiens ont été réalisés avec lesautorités locales. Aussi des ima...
Ponds are key elements for ecosystem functions in urban areas. However, little is known about pond biodiversity changes over time and the drivers underlying such changes. Here, we tested whether past species assemblages, land cover and pond environmental change influence pond macroinvertebrate species richness and temporal beta diversity. We also c...
