Navegando por Assunto "Semiárido"

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ATER agroecológica para a agricultura familiar no semiárido: do enfrentamento da fome, à abundância promovida pelos sistemas agroflorestais nos municípios de Buíque, Exu e Triunfo em Pernambuco
(2024-02-04) Silva, Raul Brainer; Figueiredo, Marcos Antonio Bezerra; http://lattes.cnpq.br/4886000173439874
I present my academic and professional career in this memorial in an autobiographical approach, where many of the reflections were obtained through experience in different territories, in the daily lives of farmers in different locations in the Semiarid region. The aforementioned document is specific to my understanding and learning in themes related to Education in Agroecology with rural participatory processes, given the knowledge acquired in the Bachelor of Agroecology Peasantry and Popular Education (BACEP) and the experience of “Sertaneja Culture” in the surrounding territory. from PARNA-Vale do Catimbau, Serra do Araripe and Sertão do Pajeú, through Sítio Alcobaça, Association of Farmers and Farmers of Serra dos Paus Dóias (AGRODÓIA) and the Agroecological Development Center (SABIÁ) in the semi-arid region of Pernambuco. Relating Agroecological Scientific Knowledge to the ancestral knowledge of traditional native communities, we highlight here the importance of different integrated cultivation and breeding systems, with low environmental impact arrangements. Presenting the experiences of Mandatory Supervised Internships (ESO's), based on the management practices, implementation and processing of what is produced in Agroforestry Systems (SAF's), bringing SAF as a strategy for generating income, combating climate change and part of the solution to confront the issue of hunger in the Northeast Sertanejo, portrayed in Josué de Castro's work “Geografia da Fome”, published in 1964 and still current in terms of the developmental problems that threatened food security in the semi-arid region.
Avaliação da aplicação de molibdênio e nitrogênio no crescimento do feijão-caupi irrigado com água salina em ambiente semiárido
(2021-12-06) Maciel, Lucas Henrique; Oliveira, Alexandre Campelo de; http://lattes.cnpq.br/8164135937542569; http://lattes.cnpq.br/3063695672625738
Cowpea (Vigna unguiculata (L.) Walp.) has its center of origin located in the African continent, being introduced in Brazil around the 16th century and is still recognized today as one of the most consumed legumes in the North and Northeast regions. Its cultivation is expressive by irrigating farmers, however, the water used is of poor quality and extremely saline. This salinity can affect the absorption of nitrogen, an important macronutrient for the growth and development of the legume and associating with this condition the deficiency of molybdenum, an important micronutrient in nitrogen metabolism, which together can be an important nutritional management strategy to provide the expression of maximum productive potential of cowpea. The objective of this work was to evaluate the behavior of cowpea cv. IPA 207, when subjected to increasing doses of molybdenum associated with nitrogen doses, aiming to establish the treatment that would enable the best increment of the studied variables. The experimental design used was in randomized blocks, generating a factorial scheme, 5x2x4, totaling 40 experimental units, with the following treatments: 5 doses of molybdenum (0, 40, 80, 120 and 160 g/ha) and two doses of nitrogen ( 0, 80 kg/ha) and 4 repetitions. The molybdenum source used was sodium molybdate, and urea was nitrogen. Treatments were applied 23 days after seedling emergence. The variables studied were: plant height (cm), stem diameter (mm), number of pods per plant, number of grains per pod, mass of one hundred grains (g), fresh and dry mass of shoot (g), fresh and dry root mass (g) and the activity of the nitrate reductase enzyme. The data obtained were submitted to analysis of variance and then to polynomial regression analysis. The increasing doses of molybdenum applied via the leaves in association with nitrogen fertilization positively influenced the activity of the nitrate reductase enzyme, as well as the accumulation of fresh and dry matter of cowpea, in addition to the significant increase in the variables number of grains per pod and number of pods per plant.
Caracterização da ovinocultura de corte em regime de semiconfinamento no município de Belo Jardim – PE
(2024-10-01) Silva, Emanuel Isaque Cordeiro da; Monnerat, João Paulo Ismério dos Santos; http://lattes.cnpq.br/3851426263880079; http://lattes.cnpq.br/8455592829863253
The sheep meat production sector has established itself as an agro-pastoral activity of significant economic and social importance in Brazil, particularly in regions where the adaptability of sheep breeds to climatic conditions is notable. The semi-confinement system, characterized by a combination of grazing and controlled feeding, presents a viable alternative for sheep meat production, enabling better utilization of forage resources and contributing to the sustainability of the activity. In this context, the present study aims to explore the specificities of this practice in the city of Belo Jardim through a questionnaire designed and administered to local sheep producers. The objective is to collect data and characterize the sheep meat production system in semi-confinement, evaluating and discussing the productive and reproductive indices of the herd. Additionally, the study seeks to compare the productive data of one production system in the city to identify the potentials and limitations inherent in the production chain. Employing a methodological approach that includes quantitative data analysis, interviews with local producers, and direct observation, this research aims to understand management practices, adopted production systems, and the key factors influencing the profitability and viability of sheep meat production in Belo Jardim. It is anticipated that the results will contribute not only to strengthening the sheep production chain in the region but also to the formulation of public policies that promote the development of this activity.
Caracterização do regime pluviométrico em roçados agroecológicos no Sertão do Pajeú/PE
(2022-10-14) Moura, Victoria Regina de Souza; Mendonça, Ana Paula Medeiros dos Santos Rodrigues; http://lattes.cnpq.br/9147805649299722; http://lattes.cnpq.br/9506739654872986
Caracterização morfométrica e ocupação do solo como instrumentos de análise da bacia do Açude Cachoeira I
(2019-12-12) Santos, Antonio Genessis Bezerra dos; Bezerra, Alan Cezar; http://lattes.cnpq.br/3690303625468223; http://lattes.cnpq.br/2480364080452279
In large urban centers, with high population density, requires a higher demand for water. Problems generated by the decrease in water quantity and quality, together with climate change, have made the physical and biotic characteristics of the basin more evident, aiming to improve the analysis of these water problems, improving the use for human supply. Thus, the study sought to determine the morphometry and changes in land use and occupation over the watershed. The use of Digital Elevation Models (DEM), processed in Quantum GIS software (QGIS) with the aid of TauDEM hydrological analysis complement provides the calculations of the morphometric parameters: Compactness Coefficient, Form Factor, Drainage Density Index, main river (km / km), Winding Index (%) and Concentration Time (h), plus ground cover obtained from MAPBIOMAS data. The data obtained show that the Cachoeira II reservoir presents no flood risks because it has an elongated shape, the predominance of the relief is wavy and lightly hilly, the main river presents low winding which causes a higher flow velocity. In addition, the natural vegetation has decreased in the basin, which may cause erosion and sediment transport, as well as a decrease in the waters of the reservoir to supply the city of Serra Talhada -PE.
Crescimento de espécies da Caatinga sob diferentes condições de estresses abióticos
(2024-02-15) Moura, Márcia Bruna Marim de; Souza, Luciana Sandra Bastos de; http://lattes.cnpq.br/1186468548787818; http://lattes.cnpq.br/9275493400169999
The Caatinga is the largest tropical dry forest in South America and encompasses enormous biodiversity, playing an essential role in ecosystem services. However, anthropogenic pressure has intensified the degradation of the Caatinga's native vegetation cover and soil salinization. The aim of this study was to evaluate the morphological responses of Handroanthus impetiginosus (Mart. ex DC.) Mattos and Handroanthus spongiosus (Rizzini) S. Grose seedling species to the use of natural resources when subjected to the combined stresses of salinity and water deficit. The work was carried out between July 10 and November 20, 2023, inside a nursery located in the Serra Talhada Academic Unit, in the municipality of Serra Talhada-PE. The seeds were sown in a tray and then transplanted into polyethylene bags with a capacity of 8 kg, which were filled with soil and sand in a 2:1 ratio. The plants were arranged in a completely randomized experimental design, with four replications. The species were subjected to three water regimes (RH) based on reference evapotranspiration (ETo): RH1 -50%, RH2- 75% and RH3-100% of ETo, and four salinity levels: N1 - mains water (0.27 dS/m), N2 - 2.52 dS/m, N3 - 6.35 dS/m and N4 - 7.38 dS/m. Biometric data was obtained at 15-day intervals: height (ALT), number of leaves (NF), collar diameter (DC). At the end of the experiments, information on total plant biomass and its partitioning was acquired. The results showed that H. impetiginosus was more tolerant to the conditions analyzed. The species showed greater sensitivity to salt stress, which negatively influenced growth and dry biomass accumulation by up to 98%. Increased water deficit reduced height, collar diameter, number of leaves, root biomass and total biomass. The best performing water table was 100% for both species.
Cultivo de Helianthus tuberosus L. em solo sob degradação do semiárido em função de fontes de adubação orgânicas e minerais
(2023) Costa, José Roberto Alves da; Freire, Maria Betânia Galvão dos Santos; http://lattes.cnpq.br/2636653493262436; http://lattes.cnpq.br/5232380005589178
Desempenho agronômico de clones de palma forrageira Submetidos a diferentes níveis de potássio
(2019-02-14) Silva, Fábio Heráclito da; Leite, Maurício Luiz de Mello Vieira; http://lattes.cnpq.br/4204641633941814; http://lattes.cnpq.br/1652940323753761
Cactus forage can be used as a food alternative for ruminants in the Semi - arid region of Brazil, however, there are few researches related to potassic fertilization in the semi - arid environment and the morphological and productive responses of the cactus forage submitted to potassium fertilization. The objective was to evaluate the agronomic performance of forage palm clones submitted to different levels of potassium fertilization in a semi-arid environment. The experiment was conducted at the Universidade Federal Rural de Pernambuco / UniversidadeEstadual de Serra Talhada- UAST, in Serra Talhada-PE, during the period from December 2017 to December 2018. The experimental design was a randomized complete block design in a 5x2 factorial system ( five potassium levels and two palm clones) with three replicates. Two genotypes of forage palm, the Orelha de Elefante Mexicana (Opuntia stricta (Haw.) Haw.) And Docemiúda (Nopalea cochenillifera Salm. Dyck), were submitted to different doses of potassium (0, 250, 500, 750, 1000 kg of K2O ha-1). Morphometric evaluations (plant height, cladode number, length, width and thickness of cladodium) and of green and dry matter production were performed at six months and at 12 months of cultivation. The variables, plant height at six and 12 months of age, did not show
Dinâmica espacial do cenário florestal em paisagens do bioma Caatinga no município de Araripina - PE
(2022-05-27) Andrade, Adrielle; Silva, Emanuel Araújo; Melo, Lorena de Moura; http://lattes.cnpq.br/1486808425687522; http://lattes.cnpq.br/2765651276275384; http://lattes.cnpq.br/8750022516521279
Disseminação de técnicas de baixo custo para monitoramento pluviométrico em região semiárida de Pernambuco e fortalecimento da pluviometria social
(2018) Almeida, Thayná Alice Brito; Montenegro, Abelardo Antônio de Assunção; http://lattes.cnpq.br/7947714302950574; http://lattes.cnpq.br/3208512088973806
Distribuição geográfica e status de conservação de espécies de Sebastiania spreng. (Euphorbiacea) endêmicas do Nordeste do Brasil
(2023-09-19) Magalhães, Thais Nunes; Melo, André Laurênio de; http://lattes.cnpq.br/0908553047440221; http://lattes.cnpq.br/6803077394499902
Sebastiania Spreng. is a Neotropical taxon that is part of Hippomaneae, a tribe that has around 33 genera and approximately 300 species. In Brazil, the center of diversity of the genus, it is represented by nine species (S. brasiliensis, S. brevifolia, S. jacobinensis, S. larensis, S. macrocarpa, S. pteroclada, S. riparia, S. subsessilis and S. trinervia of which seven are endemic. The genus is distributed in theextraAmazonian portion of the country, with most species occurring inseasonally dry forests, especially in the caatinga and semi-deciduous forests of the Southeast, Center-West and South, rarely in the Atlantic Forest and, it is common, to be found inthe banks of rivers and streams.The present study aimed to evaluate the geographic distribution of Sebastiania species endemic to Northeast Brazil. This work recorded 3 species distributed across the region's phytophysiognomies, all of which are endemic to the Brazilian Northeast. The species chosen were Sebastiania brevifolia, S. jacobinensis and S. macrocarpa. A data collection was carried out using speciesLink, with the purpose of generating spread sheets with the occurrence data of the selected species. With this data, a map was generated with all the geographic distributions of the selected species using QGIS model 2.18.28. The Northeast regions that presented the highest degree of richness in the number of specimens were Bahia, Pernambuco and Ceará, followed bySergipe, Rio Grande do Norte and Paraíba. Among the species analyzed, S. macrocarpa was the one with the widest distribution, having records in the states of Bahia, Pernambuco, Ceará, Paraíba and Rio Grande do Norte. Sebastiania jacobinensis was distributed in four states (Bahia, Pernambuco, Ceará and Sergipe) and S. brevifolia was distributed in only three states (Bahia, Pernambuco and Ceará). According to their conservation status according to IUCN (2019), S. brevifolia and jacobinensis are considered of little concern due to their range of occurrence and may be considered endangered. S. macrocarpa is now considered tobe of concern, according to IUCN criteria (2019), also presenting it as endangered
Diversidade de aves noturnas na caatinga no estado de Pernambuco, Brasil
(2022-05-26) Boaventura, Angela Maria Mateus; Fernandes, Alexandre Mendes; http://lattes.cnpq.br/0273567197386804; http://lattes.cnpq.br/4028586068332184
Birds have an important ecological role, acting as bioindicators of environmental quality, among other aspects. Currently, the Brazilian avifauna is home to 1.971 species, of which about 510 are found in the Caatinga domain and 23 are endemic. In the Caatinga, no studies were found exclusively focused on the diversity of nocturnal birds in this phytogeographic region, and this is the first research of this nature. In this context, the present work aimed to determine the diversity of nocturnal birds in two areas of caatinga in the state of Pernambuco, Brazil: in the Mata da Pimenteira State Park (PEMP), Serra Talhada -PE and in the Sítio Várzea Grande (SITIO), Calumbi – PE. Nocturnal samplings were carried out from April 2019 to December 2021, proceeding to record the species through spontaneous recordings of the birds' vocalization. In addition, the effect of lunar illumination, temperature, precipitation, cloud cover and wind on the detectability of birds' vocalization was evaluated. The diversity of species was obtained through the Shannon Diversity Index (H') and the effectiveness in the collections was analyzed through the rarefaction curve. The richness of eight species of nocturnal birds was found in the evaluated areas, belonging to the Strigiformes, Nyctibiiformes and Caprimulgiformes orders. Of these, six were present at PMPE and seven at SITIO. Also noteworthy is the first occurrence of Aegolius harrisii, for the Caatinga domain, thus expanding the distribution of the species. It was also observed that precipitation presented a positive correlation with detectability, however, no significant differences were found in the correlation tests in relation to the other variables analyzed. Due to this controversy, more studies between nocturnal bird communities and exogenous factors should be done, in order to better understand the biology of nocturnal birds in the Neotropical region.
Diversidade de nematoides em sistema agroecológico na Caatinga
(2025) Morais, Thayná Felipe de; Pedrosa, Elvira Maria Regis; http://lattes.cnpq.br/8905353478054504; http://lattes.cnpq.br/1303449671731706
Estudo do regime de precipitação em áreas do Projeto Algodão em Consórcios Agroecológicos
(2020-12-21) Silva, Juliana Melo da; Ferreira, Ademir de Oliveira; http://lattes.cnpq.br/6485786832294884; http://lattes.cnpq.br/5271108622932745
Evapotranspiração e coeficiente de cultura da palma forrageira: análise comparativa de cultivos sem e com o uso de cobertura morta
(2018) Alves, Hygor Kristoph Muniz Nunes; Silva, Thieres George Freire da; Jardim, Alexandre Maniçoba da Rosa Ferraz; http://lattes.cnpq.br/9981205244282499; http://lattes.cnpq.br/0213450385240546; http://lattes.cnpq.br/4208743875293068
Due to long periods of drought and the effects of climatic changes in the Brazilian semi-arid region, it is of great importance to use management that will circumvent these impacts in the rural environment. The use of plants tolerant to water deficit and the use of supplementary irrigation may be an alternative, where for good irrigation water management practice it is necessary to know the water requirement of the crop, evapotranspiration and the crop coefficient for conditions. Soil water balance is a technique that helps in the measurement of these components. Thus, the objective of this study is to quantify the evapotranspiration and the forage cactus cultivation coefficient in crops without and with the use of mulch in the semi-arid region of Pernambuco. The experiment was carried out at the Experimental Station Lauro Ramos Bezerra, belonging to the Agronomic Institute of Pernambuco - IPA, municipality of Serra Talhada-PE, from November 2014 to November 2015. The clone used was Opuntiastricta, submitted to four slides of irrigation (25, 50, 75 and 100%) based on reference evapotranspiration plus rainfed condition, and two cropping systems (without and with mulch). The experimental design was arranged in randomized blocks, in the factorial arrangement 5x2, in four replications, where the slices represented the plots, and the cropping systems, the subplots. Over time the soil moisture was monitored. The water balance method was applied in 14-day intervals, totalizing 21 periods, which was composed of evapotranspiration (ET), precipitation (P), irrigation (I), runoff (R), vertical flow of water in the soil (Q) and variation of soil water storage (Δh). The components of the water balance were integrated and compared between the treatments within each period, applying them to the tests of normality and homoscedasticity, and once significant, the analysis of variance, if necessary, the Tukey test (5%). The irrigation events added to precipitation during the 21 periods was 764.76 mm, with the months between August and November 2015 presenting the highest values of ETo (6.18 mm). There was no difference in the components of the vertical flow of water in the soil, capillary ascension and deep drainage (CA and DP, in this order) when compared to the systems of cultivation without and with mulch over the soil. When the crop evapotranspiration (ETc) was evaluated, a significant difference was observed only for periods 10, 18, 20 and 21. The ETc accumulated for both systems was -782.01 and -771.19 (SC and CC, in this order). The highest mean ETc value corresponded to periods 6 (10-Apr-2015) for the two SC and CC systems, with averages of (-5.06 and -4.75, respectively). For the crop coefficient (kc) only the periods 10,18, 20 and 21 were significant (p <0.05), the mean values of kc for the two systems were 0.57 and 0.56 (SC and CC, in this order). The use of mulching improved the conditions of forage cactus cultivation, although it did not present a difference in water consumption, providing close kc values.
A experiência agroecológica do Sítio do Futuro: um estudo de caso como modelo de desenvolvimento sustentável
(2022-05-27) Silva, Luana Cristine Ferreira da; Oliveira, Maria do Socorro de Lima; http://lattes.cnpq.br/1088572350623888; http://lattes.cnpq.br/6404147255589837
The rural environment formed by farmers, agroecological experimenters is a space rich in experiences, of ancestral knowledge that is passed between generations constituting itself as a territory of resistance and confrontations to the packages provided by the green revolution that in a way caused and causes social, environmental and economic problems. From this perspective, systematizing and describing agroecological experiences is a way of confronting this model of conventional agriculture. The present work is configured as a case study that seeks to portray the profound reality, seeking to reveal the multiple dimensions present in the agroecological experience of Seu Barrim and Dona Marilene. In the methodology, an analysis will be carried out in the agroecosystem with the purpose of shedding light on the agrobiodiversity present in productive backyards, in agricultural, forestry and cultural assets. As well as conversation circles and an analysis of some qualitative variables of the LUME method such as: Autonomy and gender equity. The data obtained in this research demonstrate the importance and contribution of the experience of Seu Barrim and Dona Marilene in the preservation and maintenance of agrobiodiversity, in the sovereignty and food security of the family, helping to combat the processes of climate change, semi-arid desertification, loss of biodiversity and the degradation of ecosystems, as well as their social contribution.
Flechas e punhais: as relações socioculturais entre os indígenas Atikum e os cangaceiros na Serra do Umã no Sertão pernambucano (1922-1938)
(2021-12-15) Cavalcanti, Maria Tereza de Melo; Dantas, Mariana Albuquerque; Bandeira, Élcia de Torres; http://lattes.cnpq.br/4669638328828195; http://lattes.cnpq.br/8568216121012333; http://lattes.cnpq.br/4296981034439802
The current study sought to analyze the relationship between the Atikum Indigenius people and the bandits of the Lampionic Period, betwenn 1922 to 1938, time when Lampião, was heading one of the biggest gangs of ‘social bandits’ in the Northeast Hinterlands. In this way, we seek to understand the processes that built those interactions, pointing the dynamics lived by those two groups, taking in consideration that the social context of the period in question indicates some of the reasons for the establishment of those relationships. The Umã Sierra is a space of privilege to analyze because it’s historically inhabited by indigenous people and, in the begging of the 20th century, it was a refuge to ‘social bandits’.
Índice de salinidade do solo por sensoriamento remoto em bacia hidrográfica no submédio São Francisco
(2023) Dias, Maria Caroline da Silva; Lopes, Pabrício Marcos Oliveira; http://lattes.cnpq.br/0703321303981408; http://lattes.cnpq.br/0183881695413526
Influência de granitos anorogênicos (Tipo A) na geoquímica de elementos terras raras em solo no semiárido brasileiro
(2023-02-24) Santana, Laura Mariana Nascimento de; Silva, Ygor Jacques Agra Bezerra da; Nascimento, Rennan Cabral; http://lattes.cnpq.br/5916790861002578; http://lattes.cnpq.br/0904824873761236; http://lattes.cnpq.br/5352138228552126
The global demands for rare earth elements (REEs) are continuously increasing and, consequently, the accumulation of these elements in the soil and the environment has caused adverse effects on human and environmental health, causing growing concern not only in the scientific community, but throughout society. The geochemistry of REEs in soils remains poorly understood, particularly in semi-arid environments. Studies on the dynamics of REEs in different geological, pedological and climatic contexts are necessary to understand the different biogeochemical behaviors of these elements. However, there are still no studies on the effect of type A granites on the physical, chemical and mineralogical attributes of soils located in different environmental conditions. Thus, the present work aimed to evaluate the influence of the mineralogy of anorogenic granites (A Type) on the mineralogy and geochemistry of rare earth elements in the Brazilian semi-arid region. The soil profile was selected based on the geological map of Pernambuco. A Type granite was analyzed using a petrographic microscope, scanning electron microscopy and energy-dispersive X-ray spectroscopy. Soil morphology was described based on the Soil Description and Collection Manual in the Field and the soil profile classification was according to the Brazilian Soil Classification System. REEs readings were made by optical emission spectrometry. An X-ray diffractometer was used to identify the minerals in the soil fractions. The soil profile derived from type A granite in the semi-arid region was classified as CAMBISSOLO HÁPLICO Ta Eutrófico Típico, defined by the presence of an incipient B diagnostic horizon (Bi), being deep, not stony, not gravelly and not rocky. Based on the fertilizer recommendation manual for the state of Pernambuco, the natural fertility of the soil profile originating from type A granite was considered moderate. A Type granite showed a high proportion of mafic and accessory minerals, mainly biotite, hornblende, allanite, garnet, opaque minerals and apatite. Bastnasite and monazite weathering were the main sources of REEs in the soil. The average total concentration of REEs in the soil profile originating from A type granite was very high (394.2 mg kg-1), being higher than the average of soils derived from other granite types (I and S Types), as well as from average of the soils of Europe, China, Japan, Sweden and the reference soils of Brazil. Soil derived from A type granite showed REE enrichment, with slight fractionation between LREEs and HREEs. The LaN/YbN ratio slightly higher than one also confirmed the slight fractionation between LREEs/HREEs. There was no fractionation between LREEs (LaN/SmN ratio <1). However, there was a slight fractionation among the HREEs (GdN/YbN ratio > 1) due to these metals being more mobile than the LREEs. The positive cerium (Ce) anomaly is explained by the oxidizing condition of the profile, in which Ce3+ transforms into Ce4+, presenting low solubility and a greater tendency to enrichment. The positive europium (Eu) anomaly is explained by the substitution of Eu by strontium (Sr2+) in plagioclase. Therefore, the positive Eu anomaly in the soil reflects the same geochemical signature in its parent material. The mineralogical composition of A type granite, as well as the mineralogy of the soil, had a strong influence on the geochemistry of REEs in the soil. This study provides evidence of the influence of A type granite on the geochemistry of REEs in soil located in the Brazilian semi-arid region.
Inteligência artificial na classificação de uso e cobertura da terra no semiárido de Pernambuco
(2020-11-03) Almeida, Gabriela Costa de; Silva, Emanuel Araújo; Moreira, Giselle Lemos; http://lattes.cnpq.br/6171199372079024; http://lattes.cnpq.br/2765651276275384
The Brazilian Tropical Dry Forest, known as Caatinga, is located in Brazil's northeastern region and has severe climatic characteristics, with dry weather and poorly distributed rainfall. Those climatic characteristics make Remote sensing analysis difficult due to its large vegetation differences between the dry and rainy periods. In order to help the remote sensing analysis in this biome, this work aims to test different Artificial Intelligence algorithms through supervised classification and to identify land use and land cover patterns in the city of Petrolina, in Pernambuco. Three algorithms were tested: Random Forest, Artificial Neural Networks, and K-Nearest Neighbors using QGIS and RStudio software based on Landsat 8 images from the dry period. Twenty samples from the classes were selected: Water, Agriculture, Urban Area, Forest, and Exposed Soil, and these samples served as a basis for training the algorithms for the classification of images. Occupancy data and precision quality assessment were obtained using Mapping Accuracy and Kappa Index, respectively: 0.9878706 and 0.9653555 for Random Forest; 0.9199973 and 0.9454833 for Artificial Neural Networks, 0.9873741 and 0.9598640 for K-Nearest Neighbors, all being considered excellent. These values were higher than those found in the most commonly used algorithms, as in the Maximum Likelihood algorithm. It was observed that the use of artificial intelligence algorithms could generate better results in the classification of land use in semiarid regions.