Jhon Lennon Bezerra Da Silva

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• Doctor in Agricultural Engineering
• Professor at Instituto Federal Goiano

The use of geotechnologies combined with remote sensing has become increasingly essential and important for efficiently and economically understanding land use and land cover in specific regions. The objective of this study was to observe changes in agricultural activities, particularly agriculture/livestock farming, in the North Forest Zone of Per...

Lettuce is among the 10 most valued vegetables for fresh consumption in Brazil. The use of rock powder in lettuce crops for soil acidity correction or fertilization is an option for reducing production costs. In this context, the objective of this study was to evaluate the effects of rock powder rates mica schist and irrigation water depths on the...

The application of machine learning techniques to determine bioparameters, such as the leaf area index (LAI) and chlorophyll content, has shown significant potential, particularly with the use of unmanned aerial vehicles (UAVs). This study evaluated the use of RGB images obtained from UAVs to estimate bioparameters in sesame crops, utilizing machin...

The growing recognition of the importance of ovine meat has strengthened the sector in various parts of the world, as interest in food quality has significantly increased. Thus, this study was conducted to evaluate the biometric and morphometric characteristics of carcasses from confined lambs. A total of thirty-two intact crossbred Dorper lambs, w...

The alteration of the landscape due to urban concentration can bring effects such as “heat islands” that affect human well-being. The objective was to apply mathematical modeling and ambiance methods to build a classifier based on fuzzy logic that represents different levels of human well-being resulting from the peri-urban transitional area. The s...

The objective of this study was to correlate the biophysical parameters of forage cactus with visible vegetation indices obtained by unmanned aerial vehicles (UAVs) and predict them with machine learning in different agricultural systems. Four experimental units were conducted. Units I and II had different plant spacings (0.10, 0.20, 0.30, 0.40, an...

Artificial Intelligence (AI) has changed how processes are developed, and decisions are made in the agricultural area replacing manual and repetitive processes with automated and more efficient ones. This study presents the application of deep learning techniques to detect and segment weeds in agricultural crops by applying models with different ar...

In addition to being an important instrument in the search for increasingly greater productivity, agricultural production with adequate use of irrigation systems significantly minimizes the impact on water resources. To meet high productivity and yield, as well as industrial quality, a series of studies on sugarcane cultivation are necessary. Despi...

Integrating advanced technologies such as artificial intelligence (AI) with traditional agricultural practices has changed how activities are developed in agriculture, with the aim of automating manual processes and improving the efficiency and quality of farming decisions. With the advent of deep learning models such as convolutional neural networ...

Brazil, despite possessing the largest renewable freshwater reserves in the world (8.65 trillion m³ annually), faces growing challenges in water management due to increasing demand. Agriculture, responsible for 68.4% of water consumption, is one of the main drivers of this demand, especially in the São Francisco River Basin, where irrigation accoun...

The increasing demand for water resources has resulted in environmental degradation and conficting interests among diverse users. This research aimed to scrutinize the causes and repercussions of land use exploitation and degradation within the Samambaia River Basin (SRB), focusing on potential environmental impacts linked to the management of irri...

Caatinga is a typical Brazilian biome facing severe threats despite its ecological and socio-economic importance. Conservation strategies are essential in protecting ecosystems and ensuring natural resource sustainability. Mata da Pimenteira State Park (PEMP), launched in 2012, is an example of such a strategy. The current study aims to use orbital...

O aquecimento global e as mudanças climáticas impactam diretamente a produção agrícola, destacando a urgência de soluções sustentáveis para a climatização de instalações. Nesse contexto, a energia geotérmica superficial emerge como alternativa promissora, especialmente em regiões tropicais e subtropicais. Este estudo objetivou avaliar o potencial d...

Variations in rainfall patterns in the Northeast region of Brazil (NEB) are high and multiscalar, increasing susceptibility to extreme drought and/or flood events. The objective of this study was to characterize rainfall patterns and monthly dry-wet periods using the Standardized Precipitation Index (SPI) from 1990 to 2019 in the South Coast of NEB...

Monitoring areas susceptible to desertification contributes to the strategic development of regions located in environments of extreme hydric and social vulnerability. Therefore, the objective of this study is to evaluate the process of soil degradation in the Desertification Nucleus of Cabrobó (DNC) over the past three decades using remote sensing...

Soils in areas under grazing undergo physical changes, of greater or lower intensity, by the action of animal trampling. Thus, the objective of this study was to evaluate the spatial dependence of the physical attributes and associated soil functionalities under trampling by cattle on rotational grazing in the region of Pernambuco, Brazil. The rese...

The proposal for a method of identifying the occurrence of desertification that has a strong association with in situ data leads to more assertive results when analysing the contribution of climate and social and economic factors to advancing the process. This study aimed to develop a methodology called the RisDes_Index to evaluate the evolution of...

The applicability of remote sensing enables the prediction of nutritional value, phytosanitary conditions, and productivity of crops in a non-destructive manner, with greater efficiency than conventional techniques. By identifying problems early and providing specific management recommendations in bean cultivation, farmers can reduce crop losses, p...

Northeast Brazil (NEB), particularly its semiarid region, represents an area highly susceptible to the impacts of climate change, including severe droughts, and intense anthropogenic activities. These stresses may be accelerating environmental degradation and desertification of soil in NEB. The main aim of this study was to gain geospatial insights...

Several studies investigated the occurrence of fires in Africa with numerical modeling or applied statistics; however, only a few studies focused on the influence of El Niño on the fire risk using a coupled model. The study aimed to assess the influence of El Niño on wildfire dynamics in Africa using the SPEEDY-HYCOM model. El Niño events in the Ea...

This study analyzed the seasonality of biophysical parameters in the extreme years of precipitation and the relationship with the monthly precipitation of the state of Pernambuco at the regional level (Pernambuco) and homogeneous precipitation zones: zone 1—semiarid, zone 2—transition and zone 3—coastal. For this, the biophysical parameters at the...

This study analyzed the seasonality of biophysical parameters in the extreme years of precipitation and the relationship with the monthly precipitation of the state of Pernambuco at the regional level (Pernambuco) and homogeneous precipitation zones: zone 1-semiarid, zone 2-transition and zone 3-coastal. For this, the biophysical parameters at the...

The detection and monitoring of changes in land use and land cover play a crucial role in understanding land degradation and are fundamental to preserving agroecosystems. Their association with hydrological information allows essential responses to changes in hydrological patterns to be identified, contributing to water security in watersheds. Ther...

A aplicabilidade do geoprocessamento e os conjuntos de técnicas de sensoriamento remoto e imagens de satélites permitem detectar os padrões e as condições de mudanças da cobertura e uso da terra. O diagnóstico da variabilidade quantitativa e espaço-temporal da cobertura vegetal de regiões semiáridas é peça-chave para mitigar as pressões e os impact...

Understanding and characterizing the relationship between soil and environmental temperatures is crucial for developing effective agricultural management strategies, promoting natural resource conservation, and developing sustainable production systems. Despite the direct impact of the thermal properties of Oxisols on global food production and sus...

The objective of this study was to develop and calibrate a photovoltaic-powered soil moisture sensor (SMS) for irrigation management. Soil moisture readings obtained from the sensor were compared with gravimetric measurements. An automated SMS was used in two trials: (i) okra crop (Abelmoschus esculentus) and (ii) chili pepper (Capsicum frutescens)...

Increasing population and demand for animal-derived products has raised the need for improved efficiency in managing and controlling animal production. Given this context, the project aimed to develop a device that aids decision-making in animal production. A hardware system was designed for instant measurement of thermal well-being levels, light i...

The objective was to establish a model for the prediction and characterization of vaginal temperature in Holstein cows, based on environmental predictors and thermal comfort indices, through cluster analysis, validation by the cophenetic correlation coefficient, and multiple regression analysis. The micrometeorological characterization of the site...

Studies have shown that well-managed pastures can reach high productivity. In this sense, tropical forages, such as Bermudagrass, have demonstrated high productive aptitude with the increasing lineares increases throught frequent and fractionated nitrogen-based fertilization. In addition, integrated with water management management through irrigati...

Brazil is one of the largest vegetable producers, which contributes to the creation of jobs for small and medium-sized producers, with emphasis on family farming. The objective of this work was to evaluate the cherry tomato and chili pepper seedlings development adopting the agroindustrial by-product filter cake enriched with rock dust. Two experim...

Hostile climatic conditions, including high water deficit in the soil-atmosphere system characterize regions with arid and semi-arid climates. Local landscapes with climates of low rainfall and relative humidity, and high air temperature, such as regions of sub-humid, semi-arid, and arid zones, cover approximately 45.4% of the entire land surface o...

Changes in land use and land cover in the Brazilian semiarid region have intensified, due to climate change and anthropic activities, amplifying land degradation and the desertification process. In this scenario, the objective of this study is to evaluate the spatio-temporality of the conditions of loss and gain of land use and land cover in the Br...

Simple Summary Heat stress (HS) is a complex phenomenon that triggers multiple animal response mechanisms that negatively impact livestock welfare and production. Thermal comfort is therefore an important subject for limiting performance loss and other adverse effects of heat stress on animal physiology in different production systems; furthermore,...

The spatiotemporal diagnosis of climate variability and environmental changes in arid and semiarid regions is essential to minimize pressures and impacts on natural ecosystems. Remote sensing techniques and satellite images allow the detection of such changes. The study evaluated spatio-temporally the processes of environmental degradation of veget...

Citation: Giongo, P.R.; Oliveira Assis, A.P.A.d.; Silva, M.V.d.; Montenegro, A.A.d.A.; Taveira, J.H.d.S.; Costa, A.R.d.; Silva, P.C.; Giongo, A.M.M.; Pandorfi, H.; Santos, A.J.M.; et al. Land Use and Water-Quality Joint Dynamics of the Córrego da Formiga, Brazilian Cerrado Headwaters. Geographies 2022, 2, 629-641. https://doi.org/10.3390/ geographi...

Land degradation is a major challenge worldwide, limiting socio economical development and jeopardizing biodiversity, being associated to changes in land use and to climate variability. FAO shows that the world's soils have environmental degradation in large scale, particularly in semiarid areas, reducing environmental services, and impacting agric...

Thematic maps of land cover and use can assist in the environmental monitoring of semiarid regions, mainly due to the advent of climate change, such as drought, and pressures from anthropic activities, such as the advance of urban areas. The use of geotechnologies is key for its effectiveness and low operating cost. The objective was to evaluate an...

Due to the scarcity of studies linking the variability of rainfall and population growth in the capital cities of Northeastern Brazil (NEB), the purpose of this study is to evaluate the variability and multiscale interaction (annual and seasonal), and in addition, to detect their trends and the impact of urban growth. For this, monthly rainfall dat...

The chemical composition of groundwater from the Beberibe aquifer located in the Northeast of Brazil (NEB) was assessed using geostatistical, geoprocessing, and multivariate analysis techniques. The data collected came from 34 georeferenced mining and mineral water production units. From this, a Piper diagram was constructed and hydrogeological and...

The objective was to evaluate the Mata da Pimenteira State Park (Parque Estadual da Mata da Pimenteira - PEMP) in the rainy and dry periods, based on Sentinel-2 satellite images. The study area belongs to the municipality of Serra Talhada, Pernambuco. The sets of remote sensing techniques and satellite orbital images were used in Google Earth Engin...

Caatinga biome, located in the Brazilian semi-arid region, is the most populous semi-arid region in the world, causing intensification in land degradation and loss of biodiversity over time. The main objective of this paper is to determine and analyze the changes in land cover and use, over time, on the biophysical parameters in the Caatinga biome...

The cultivation of sugarcane occupies a significant area in the municipality of Juazeiro, BA, affecting the surrounding environment. The use of technologies, such as remote sensing and geoprocessing, has been helping to obtain important information about these agricultural areas. This work aimed to evaluate the spatial distribution of the component...

It is essential to know the dynamics of agricultural areas through surface energy balance components such as radiation balance, evapotranspiration, and soil moisture for the sustainable management of water use in irrigation. In the present study, we undertook to monitor and evaluate the spatiotemporal dynamics of an irrigated area with a center piv...

The objective is to characterize the hydrochemical and qualitative composition of the groundwater of the Beberibe aquifer located in the Northeast of Brazil (NEB) using geostatistical, geoprocessing, and multivariate analysis techniques. The Beberibe aquifer is located in the state of Pernambuco (PE), NEB, and is responsible for supplying water to...

USO DO SOFTWARE AQUACROP PARA SIMULAR A RESPOSTA DO FEIJÃO À DIFERENTES REGIMES DE IRRIGAÇÃO MONALISA SOARES COSTA1*; EVERARDO CHARTUNI MANTOVANI2; FERNANDA LAMEDE FERREIRA DE JESUS3; ARTHUR CARNIATO SANCHES 4; JHON LENNON BEZERRA DA SILVA5 E JANNAYLTON ÉVERTON DE OLIVEIRA SANTOS6 1 Bolsista de longa duração – desenvolvimento tecnológico, Instituto...

Changes in land use and land cover can generate the degradation of ecosystems or can be linked to a recovery of their functions. In this sense, the study of biophysical parameters of the surface helps to identify patterns and quantify the changes that have occurred. The objective was to evaluate the changes in biophysical parameters in the state of...

This study aimed to evaluate the correlation among growing degree-days (GDD), canopy height (CH), and leaf area index (LAI) for irrigated Guinea grass, considering different combinations of nitrogen and boron rates and regrowth cycles. The field experiment was carried out from August/2017 to August/2018, and the regional climate is classified as su...

This study aims to evaluate the correlation among growing degree-days (GDD), canopy height (CH), and leaf area index (LAI) for Guinea grass irrigated, considering the different combinations of the nitrogen and boron rates and cycles of regrowth. The experiment was carried out from August/2017 to August/2018 in a field experiment, and the climate of...

The objective of this research was to use image analysis techniques to extract characteristics of interest and to establish a model of animal thermal comfort, based on the classification of thermal images of 7/8 Holstein-Gir heifers, through geostatistics and multivariate analysis. The thermal images were recorded by an infrared thermographic camer...

Introdução: O Semiárido brasileiro é caracterizado em muitos locais por seu balanço hídrico negativo, precipitação irregular e predominância do bioma Caatinga. As ações antrópicas têm impactado em alterações no uso do solo e ameaçado a Caatinga. Desta forma, o sensoriamento remoto é uma ferramenta chave para investigação dos impactos ambientais, pl...

This study aimed to identify the homogeneous zones, the regimes, and the local trends for annual and seasonal rainfall in the state of Pernambuco, Brazil. We collected seasonal and annual data on monthly rainfall from 45 weather stations in Pernambuco from 1987 to 2019. The data were organized yearly to identify the homogeneous rainfall zones based...

Brazilian cattle production is mainly conducted with the use of cultivated or native forages, which is considered one of the most efficient ways of production. In this sense, this study aimed to evaluate the production and water-use efficiency of Guinea grass under different associations between nitrogen and boron doses, as well as different regrow...

Este trabalho investigou a caracterização de uma bacia hidrográfica do Semiárido de Pernambuco e os efeitos da estiagem nas condições de uso e ocupação do solo por meio da adoção de geotecnologias aplicadas à gestão dos recursos hídricos. Para tanto, foram obtidas as imagens de altimetria pela Embrapa e realizada análise para caracterização morfomé...

A aplicabilidade de geotecnologias e conjuntos de técnicas de sensoriamento remoto e imagens de satélites permitem detectar mudanças da cobertura e uso da terra em nível local, regional e global. O diagnóstico espaço-temporal da variabilidade climática e padrões de mudanças ambientais de regiões áridas e semiáridas, especialmente a degradação da ve...

The reference evapotranspiration (ETo) is a complex measure essential to water resources planning and management, irrigation scheduling and rational agricultural water use. This research aimed to evaluate the performance of the empirical methods in estimating reference evapotranspiration based on daily meteorological data of the surface and compari...

O semiárido pernambucano vem sofrendo com diversos processos de degradação ambiental, devido ao avanço das atividades agrícolas, além da atenuante seca que assola o semiárido brasileiro e o bioma Caatinga. O uso do geoprocessamento diante das técnicas de sensoriamento remoto se destaca pela alta aplicabilidade no monitoramento ambiental, na estimat...

As condições de mudanças na cobertura e uso da terra do Semiárido Brasileiro se intensifcam ao longo tempo devido às mudanças climáticas e a variabilidade pluviométrica. O monitoramento ambiental por satélite das condições biofísicas à superfície favorece no planejamento e gestão na tomada de decisão de forma rápida e efciente, para mitigar os impa...

The objective of this work was to characterize the spectral responses of soil and plant indicators utilizing the Soil-Adjusted Vegetation Index (SAVI) and Leaf Area Index (LAI) in areas under the cultivation of ‘Orelha de Elefante Mexicana’ forage cactus (Opuntia stricta (Haw.) Haw.) and ‘Miúda’ (Nopalea cochenillifera (L.) Salm-Dyck) in Brazilian...

Seasonality in tropical forage production is common in tropical and subtropical regions and should be identified for decision making on the stocking rate for each period. This study aimed to evaluate the variability of dry matter production of Megathyrsus maximum cv. Mombaça ‘Guinea grass’ over two years. The experiment was carried out from Februar...

Soil compaction and pasture degradation are often due to the pressure exerted by the animals’ hooves. In this sense, this study aimed to verify possible changes in the soil and changes in the pasture vegetation coverage due to animal trampling. Thus, a study was carried out on a farm in the ‘Agreste’ region of Pernambuco, Brazil. Soil samples were...

Acultura do feijão comum e da mamona, são adotadas por pequenos produ- tores rurais, que precisam otimizar ao máximo o uso de suas terras e imple- mentar estratégias alternativas de produção. Nesse sentido, o consórcio das culturas pode ser uma boa técnica para atender essas demandas. Assim, objeti- vou-se revisar a literatura acerca da produção, o...

Oobjetivo desse trabalho foi avaliar o efeito da irrigação com diferentes doses nitrogenadas no crescimento e produtividade de seis híbridos de milho, ava- liando o crescimento inicial, produtividade de massa úmida da planta (PTMU) e produtividade de massa seca (PTMS) para silagem, porcentual de grãos no milho (%PG) e a produtividade de grãos (PG)....

The assessment of environmental conditions in the creation of dairy cattle in feedlots must be carried out to identify possible causes of stress and assist producers in the decision-making process. The objective was to characterize the abiotic factors and bed temperature, in the comfort conditions of dairy cows, through geostatistics and explorator...

The Brazilian semiarid region is marked by water scarcity, which causes the loss of leaves from native vegetation to reduce transpiration. With the reduction of the Caatinga leaf area, the soil becomes more exposed, which makes it a great ally for environmental degradation. This study aimed to monitor and analyze the spatial-temporal dynamics of th...

The objective of this study was to evaluate the causes and consequences of changes in the water flow of the São Francisco River, on the border between the states of Sergipe and Alagoas, a Brazilian semiarid region. For this, we used images from the Landsat-8 satellite, OLI sensor, with a spatial resolution of 30 m. The results found in this study r...

A gestão eficiente dos recursos hídricos no Nordeste Brasileiro torna-se fundamental diante do regime hidrológico dos rios intermitentes, dos quais muitos são extremamente críticos, pois dependem de um regime pluviométrico irregular, tanto em escala de tempo mensal, quanto anual. Objetivou-se determinar a variabilidade espaço-temporal da precipitaç...

The objective of this study was to evaluate the causes and consequences of changes in the water flow of the São Francisco River, on the border between the states of Sergipe and Alagoas, a Brazilian semiarid region. For this, we used images from the Landsat-8 satellite, OLI sensor, with a spatial resolution of 30 m. The results found in this study r...

The objective of this study was to evaluate the causes and consequences of changes in the water flow of the São Francisco River, on the border between the states of Sergipe and Alagoas, a Brazilian semiarid region. For this, we used images from the Landsat-8 satellite, OLI sensor, with a spatial resolution of 30 m. The results found in this study r...

The objective of this study was to evaluate the causes and consequences of changes in the water flow of the São Francisco River, on the border between the states of Sergipe and Alagoas, a Brazilian semiarid region. For this, we used images from the Landsat-8 satellite, 8 OLI sensor, with a spatial resolution of 30 m. The results found in this study...

A cultura da cana-de-açúcar no Estado de Pernambuco, Brasil, apresenta algumas dificuldades de produtividade. Geralmente, as plantações estão em áreas com solos tabuleiros costeiros, que apresentam baixa disponibilidade de água para as plantas, e ainda, quando o preparo do solo é inadequado, restringe-se a infiltração, reduzindo, todavia, mais essa...

The Brazilian semiarid suffers from the reflex of high rainfall variability, with rainfall concentrated over time, with little spatial distribution. In this sense, presenting a highly dynamic vegetation cover, which requires constant monitoring of the changing conditions of different land uses and the utilization of water resources. The objective w...

Degradation of Caatinga biome has created desertification processes in several areas, inducing big microclimate and surface changes. Therefore, it is fundamental develop research methods capable of identifying areas under degradation process. Satellite images in different spatial, temporal, radiometric and spectral resolutions are being used to mon...

The objective of this work was to find the best predictor variables through canonical correlation analysis in trade winds, Sea Surface Temperature (SST), Atmospheric pressure at the surface in the Equatorial Pacific Ocean and SST in the Tropical Atlantic (Dipole area), that models for forecasting rainfall (rainy season) in the eastern sector of nor...

The Caatinga biome is one of the most threatened in Brazil because most of the native forest has been deforested for land use, mainly with pasture, for animal production. The objective of this research was to evaluate the changes caused by agricultural and livestock activities in a region with a predominance of the Caatinga biome, using remote sens...

Regiões de clima tropical, como no Brasil, tem predominância de temperaturas mais elevadas, com condições de estresse. Objetiva-se neste trabalho determinar por meio da análise de componentes principais, quais, dentre as variáveis ambientais, fisiológicas e parâmetros comportamentais têm influência sobre a produção e qualidade do leite de vacas em...

Objetivo: Identificar núcleos de índice de semiaridade, associados à cobertura do sensor MODIS (MOD12Q1), bem como a falta de amostragem do solo. Buscou-se, ainda, analisar os efeitos dos parâmetros biofísicos sem índice de umidade do solo (IUS) usados pelo NDVI (MOD13Q1) e pelos Ts (MOD11A2) para 2006 e 2012 no município de Ouricuri, Pernambuco, B...

The objective was to verify possible modifications of the soil structure and the pattern of the spectral response of pasture vegetation cover to animal trampling. The study was carried out on a farm in the Agreste region of Pernambuco, Brazil in an area with continuous grazing by heifers. Soil samples were collected at 36 regular points, before and...