scholarly journals Attributes of Neosols associated with agricultural uses in the Semi-arid Region of Rio Grande do Norte, Brazil

2016 ◽  
Vol 7 (11) ◽  
pp. 184-190
Author(s):  
Sonally Jácome Cavalcante Jussiara ◽  
Cruz Portela Jeane ◽  
Bezerra de Melo Stefeson ◽  
Rangel de Souza Melo Mikhael ◽  
Reboucas Cosme Christiano ◽  
...  
Keyword(s):  
Arid Region ◽  
Rio Grande ◽  
Semi Arid Region ◽  
Semi Arid

scholarly journals Group multicriteria model for allocating resources to combat drought in the Brazilian semi-arid region

Water Policy ◽  
2018 ◽  
Vol 20 (6) ◽  
pp. 1145-1160 ◽  
Author(s):  
Thomas Edson Espíndola Gonçalo ◽  
Danielle Costa Morais
Keyword(s):  
Water Scarcity ◽  
Arid Region ◽  
Rio Grande ◽  
Decision Makers ◽  
The Public ◽  
The World ◽  
Multicriteria Model ◽  
Semi Arid Region ◽  
Semi Arid ◽  
Made In

AbstractThe world is facing a growing water scarcity problem in the most diverse regions. The Rio Grande do Norte (RN), a Brazilian semi-arid region, is facing its severest drought in the last 100 years. Given this context, managing water resources and combating the effects of the drought have become even more important. Decisions made in this context may involve multiple criteria established by more than one decision-maker. To tackle this issue, a multicriteria model for group decisions is proposed in order to rank the municipalities of the region and thus guide the public administration's efforts in tackling the drought and mitigating its effects. The applicability of the model is exemplified by studying the Apodi-Mossoró river basin, for which the PROMETHEE GDSS method was selected and the preferences of three decision-makers were calculated.

Avaliação da susceptibilidade à degradação ambiental em um município serrano do semiárido do Brasil (Cerro Corá-RN) / Evaluation of susceptibility to environmental degradation in a mountain municipality at semi-arid region of Brazil (Cerro Corá-RN)

2018 ◽  
Vol 28 (55) ◽  
pp. 880-897
Author(s):  
Henrique Roque Dantas ◽  
Jânio Carlos Fernandes Guedes ◽  
Diógenes Félix da Silva Costa ◽  
Fernando Moreira Da Silva
Keyword(s):  
Environmental Degradation ◽  
Arid Region ◽  
Satellite Images ◽  
Census Data ◽  
Decisive Role ◽  
Rio Grande ◽  
Natural Environments ◽  
Economic Practices ◽  
Semi Arid Region ◽  
Semi Arid

Os processos de ocupação e evolução dos ambientes naturais em decorrência de um processo desordenado de implementação de práticas econômicas agrosilvopastoris, desempenham um papel determinante de degradação da paisagem do semiárido Nordestino. A Serra de Santana apresenta elementos naturais importantes para o estado do Rio Grande do Norte como a nascente do Rio Potengi.  O presente trabalho teve como objetivo analisar o grau de susceptibilidade de degradação no município de Cerro Corá - RN.  Foram utilizadas imagens de satélite Landsat-5 e dados censitários referente ao ano de 2008. Como método fez-se uso da proposta de Karmieczak e Seabra (2007) que contempla uso do solo, NDVI, precipitação, pecuária e erodibilidade na avaliação da degradação ambiental. Os resultados mostraram que em a maioria do município de Cerro Corá apresenta uma susceptibilidade de baixa a média, que juntos representam 63,92% do município. Um sistema de informação Geográfica torna-se indispensável no monitoramento ambiental de Cerro Corá/RN.Palavras-chave: LANDSAT, Indicadores de degradação ambiental, Geoprocessamento, uso do solo.AbstractThe occupation processes and evolution of natural environments due to a disorderly process of implementing agrosilvopastoris economic practices, play a decisive role in degradation of the Northeastern semi-arid landscape. The Serra de Santana presents important natural elements for the state of Rio Grande do Norte as the source of the Potengi River. The present work had as objective to analyze the degree of susceptibility of degradation in the municipality of Cerro Corá - RN. Landsat-5 satellite images were used and census data for the year 2008. As a method made use of the proposed Karmieczak and Seabra (2007) which includes land use, NDVI, precipitation, livestock and erodibility in the evaluation of environmental degradation. The results showed that in most of the municipality of Cerro Cora has a low susceptibility average, which together account for 63.92% of the municipality. A geographic information system becomes indispensable in the environmental monitoring of Cerro Corá/RNKeywords: LANDSAT, Indicators of environmental degradation, Geoprocessing, Use of Soil.

scholarly journals Tuberculosis in bovine slaughtered in the semi-arid region of Rio Grande do Norte, Brazil

2021 ◽  
Vol 42 (5) ◽  
pp. 3047-3056
Author(s):  
Pirajá Saraiva Bezerra Neto ◽  
◽  
Flábio Ribeiro de Araújo ◽  
Taynara Nunes Pasquatti ◽  
Felício Garino Junior ◽  
...  
Keyword(s):  
Nested Pcr ◽  
Arid Region ◽  
Histopathological Examination ◽  
False Negative ◽  
Rio Grande ◽  
Standard Technique ◽  
Epidemiological Surveillance ◽  
Microbiological Culture ◽  
Semi Arid Region ◽  
Semi Arid

Between November 2017 and August 2018, in order to determine the occurrence of tuberculosis in cattle slaughtered in the semi-arid region of Rio Grande do Norte, 11,610 bovine carcasses underwent a routine post-mortem inspection. One animal presented suggestive lesions and samples from lung, spleen and heart were submitted to microbiological culture in Stonebrink medium for 90 days and molecular analysis by nested-PCR. For histopathological examination and Ziehl Neelsen staining, the omentum was used. In the cultured samples, two of them (heart and spleen) showed growth, but were not confirmed as M. bovis by conventional PCR. At nested-PCR, the samples showed amplification for the TbD1 region. The presence of numerous granulomas was detected in the histopathological examination characterized by a necrotic center and areas of mineralization, as well as the presence of acid-fast bacilli (AFB) in the Ziehl-Neelsen stain. Microbiological culture can show false negative results, despite being considered a gold standard technique, although it takes time. Nested-PCR and histopathology show fast and effective results for the diagnosis of the disease. The presence of positive animals represents a public health risk in the studied region. Therefore, one of the essential systems applied to the control of bovine tuberculosis is the epidemiological surveillance of animals in slaughterhouses.

scholarly journals Variation of the water table and salinity in alluvial aquifers of underground dams in the semi-arid region of Rio Grande do Norte, Brazil

2019 ◽  
pp. 477-484
Author(s):  
Alexandre de Oiveira Lima ◽  
Francisco Pinheiro Lima-Filho ◽  
Nildo da Silva Dias ◽  
René Chipana-Rivera ◽  
Miguel Ferreira Neto ◽  
...  
Keyword(s):  
Water Table ◽  
Arid Region ◽  
Rio Grande ◽  
Alluvial Aquifers ◽  
Semi Arid Region ◽  
Underground Dams ◽  
Semi Arid

scholarly journals Índice de Vulnerabilidade Geral para municípios do semiárido brasileiro

2021 ◽  
Vol 14 (1) ◽  
pp. 310
Author(s):  
Jaricélia Patrícia Oliveira Sena ◽  
João Miguel Moraes Neto ◽  
Daisy Beserra Lucena
Keyword(s):  
Arid Region ◽  
Heat Waves ◽  
Rio Grande ◽  
Vulnerability Index ◽  
High Index ◽  
Semiarid Region ◽  
Human Society ◽  
Socioeconomic Vulnerability ◽  
Semi Arid Region ◽  
Semi Arid

Nas últimas décadas, estudos científicos que enfatizam a temática da vulnerabilidade e adaptação à mudança do clima vêm crescendo devido aos impactos de alguns eventos extremos como, chuva em excesso, escassez, ondas de calor afetando diretamente a sociedade humana. Neste contexto, o presente estudo objetivou analisar o Índice de Vulnerabilidade Geral (IVG), que se baseia em indicadores socioeconômicos, epidemiológicos e climáticos, em municípios distribuídos nos estados inseridos na região semiárida brasileira. Neste caso, especificamente, o Rio Grande do Norte, Paraíba e Pernambuco. Os dados utilizados para o recorte temporal entre 1995 e 2018 são do Instituto Brasileiro de Geografia e Estatística (IBGE), do Departamento de Informática do SUS (DATASUS) e do Instituto Nacional de Meteorologia (INMET). Em relação aos resultados, eles evidenciam o índice de vulnerabilidade socioeconômica (IVSE) em relação aos demais, destacando as categorias de demografia, educação e saneamento. O município de Campina Grande foi o que apresentou alto índice de vulnerabilidade epidemiológica (IVE), em razão dos altos índices de dengue (0,733), leptospirose (1,000) e esquistossomose (1,000). Já os municípios de Apodi e Cruzeta exibiram alto índice de vulnerabilidade climática (IVC) decorrentes dos elevados números de eventos extremos de chuva.  Ademais, o índice de vulnerabilidade geral (IVG) indicou que as dimensões mais acentuadas para indícios de aumento foram o IVC e o IVSE, com exceção de Campina Grande que apresentou alto IVE. General Vulnerability Index Regarding the Municipalities in Brazilian Semi-Arid Region ABSTRACTIn recent decades, some scientific studies that emphasize the issue of vulnerability and adaptation to the climate change have been growing due to the impacts of some extreme events such as excessive rain, drought, heat waves that directly affect human society. In this context, the aim of this study it is to analyze though means of the General Vulnerability Index (IVG), which is based on socioeconomic, epidemiological and climatic indicators, in municipalities distributed in the states of Rio Grande do Norte, Paraíba, and Pernambuco, all inserted in the semiarid region of Brazil. The data that had been used refers to a period from 1995 to 2018 and they were based on the Brazilian Institute of Geography and Statistics (IBGE), the Department of Informatics of SUS (DATASUS), and the National Institute of Meteorology (INMET). Regarding the results, they show the socioeconomic vulnerability index (IVSE) in relation to the others, highlighting the categories of demography, education and sanitation. According to data Campina Grande was the place that presented high index of epidemiological vulnerability (IVE), as a result of the high rates of dengue (0.733), leptospirosis (1,000) and schistosomiasis (1,000). The municipalities of Apodi and Cruzeta exhibited a high index of climatic vulnerability (CVI) due to the elevated occasions of extreme rains. In addition, the general vulnerability index (IVG) indicated that the most accentuated dimensions for evidence of increase were IVC and IVSE.Keywords: Indicators; Socioeconomic; Epidemiological; Climate

scholarly journals Le « Sertão » du « Nordeste » (Brésil). Essai de définition d’un « pays ».

2005 ◽  
Vol 2 (4) ◽  
pp. 241-248
Author(s):  
Louis-Edmond Hamelin
Keyword(s):  
Arid Region ◽  
Rio Grande ◽  
Triangular Shape ◽  
The North ◽  
Standards Of Living ◽  
Its Regions ◽  
Semi Arid Region ◽  
Semi Arid ◽  
Original Type ◽  
Hydrographic Network

Despite the fact that Brazil is a young and vast country, some of its regions have already acquired a personality of their own. The Sertâo in the Northeast is such a case. Of triangular shape, the Sertâo opens in the North, towards the Atlantic ocean ; it covers 10% of the total area of Brazil and include more than 90% of the states of Rio Grande do Norte, Ceara and Paraiba. It is a semi arid region with a dry climate, chiefly responsible for an original type of vegetation : the caatinga. The fundamental features of the relief are horizontal with depressions and inselbergs. The rare good soils are deteriorated and the hydrographic network is fair. Such a severe country is inhabitated by 7 millions persons of mixed ethnic origins. The dominant occupational types, are the vaqueiro, the garimpeiro, the truck driver , and, during the dry season, the flagellado. It is an « under-developped » country economically , with low standards of living, and a production based on food and cattle. If the Sertao is unsafe foreigners, it remains for the natives, a mystical and attractive country that may become more prosperous with the hydro-electric development of the Sao Francisco River.

scholarly journals Pressões e ameaças em Unidades de Conservação federais da Depressão Sertaneja Setentrional, Nordeste do Brasil

2021 ◽  
Vol 14 (6) ◽  
pp. 3279
Author(s):  
Fátima Aurilane de Aguiar Lima Araripe ◽  
Ramiro Gustavo Valera Camacho ◽  
Diógenes Félix Da Silva Costa ◽  
Ilton Araújo Soares ◽  
Oriel Herrera Bonilla ◽  
...  
Keyword(s):  
Protected Areas ◽  
Arid Region ◽  
Rio Grande ◽  
Management Plan ◽  
Management Effectiveness ◽  
Natural Processes ◽  
Management Plans ◽  
Inspection Work ◽  
Semi Arid Region ◽  
Semi Arid

A Depressão Sertaneja Setentrional caracteriza-se pelas fitofisionomias de Caatinga. Marcada pelas condições de seca, é um ambiente que apresenta diversas fragilidades ambientais. Estas podem ser intensificadas pelas pressões e ameaças aos recursos naturais. As Unidades de Conservação (UCs) são ferramentas importantes para preservação, porém muitas vezes tem sua efetividade reduzida devido à ação antrópica. Dessa forma, o presente estudo objetivou avaliar as pressões e ameaças que permeiam quatro UCs federais da Depressão Sertaneja Setentrional, sendo duas Estações Ecológicas, ESEC de Aiuaba e ESEC de Seridó, e duas Florestas Nacionais, FLONA de Sobral e FLONA de Açu, localizadas no Ceará e no Rio Grande do Norte. Para análise foi aplicado aos gerentes das UC o módulo 2 do método RAPPAM, bem como foram realizadas visitas às unidades para acompanhamento das atividades de monitoramento e registro de tais pressões. Esse módulo avalia a criticidade de pressão e de ameaça, considerando a área de abrangência, impacto e permanência de 16 atividades. Ademais avalia a tendência da pressão e a probabilidade da ameaça. Foi possível observar que as atividades que mais se destacaram quanto as criticidades de pressão e ameaça foram: pastagem, processos seminaturais, presença de espécies exóticas e caça. Destarte, os trabalhos de planejamento, monitoramento e fiscalização podem ser intensificados visando minimizar esses problemas. Sugere-se avaliação e cumprimento do plano de manejo da ESEC de Seridó e FLONA de Açu, e a elaboração dos Planos de manejo das UCs: ESEC de Aiuaba e FLONA de Sobral para auxiliar o gerenciamento dessas pressões.        Pressures and threats in federal Protected Areas of the Setentrional Sertaneja Depression, Northeastern BrazilA B S T R A C TThe Setentrional Sertaneja Depression is a semi-arid region of the Brazilian northeastern characterized by the Caatinga phytophysiognomies. This region is marked by drought conditions and is an environment that presents several environmental weaknesses. These can be intensified by pressures and threats on natural resources. Protected Areas (PA) are important areas of preservation, but their effectiveness is reduced due to anthropic action. Therefore, this research aims to evaluate the pressures and threats that occur in four federal PA of the Setentrional Sertaneja Depression, being two Ecological Stations, ESEC of Aiuaba and ESEC of Seridó, and two National Forests, FLONA of Sobral and FLONA of Açu, located in Ceará and Rio Grande do Norte. For the analysis was apllied the module 2 of RAPPAM method. Visits were made to the PA to following the monitoring and recording of such pressures. This module assesses the criticality of pressure and threat, considering the area of coverage, impact and permanence of 16 activities. In addition, it assesses the pressure trend and the likelihood of the threat. It was observed that the activities that stood out the most in terms of pressure and threat criticisms were: pasture, semi-natural processes, exotic species and hunting. Thus, planning, monitoring and inspection work can be intensified in order to minimize these problems. It is suggested to evaluate compliance with the management plan of ESEC of Seridó and FLONA of Açu, and the creation of PA management plans: ESEC of Aiuabaand FLONA of Sobral to assist in the management of these pressures.Keywords: Protected areas, Caatinga, Criticality, Management effectiveness.

scholarly journals Histomoniasis in Peacock (Pavo cristatus) in the Potiguar Semiarid

2021 ◽  
Vol 49 ◽  
Author(s):  
Ana Caroline Freitas Caetano de Sousa ◽  
Gabriela Rebouças de Oliveira ◽  
Hélio Noberto de Araújo Júnior ◽  
Fabiano Rocha Prazeres Júnior ◽  
Caio Sérgio Santos ◽  
...  
Keyword(s):  
Weight Loss ◽  
Arid Region ◽  
Rio Grande ◽  
Northeastern Brazil ◽  
Economic Losses ◽  
Microbiological Analysis ◽  
Pavo Cristatus ◽  
History Of ◽  
Semi Arid Region ◽  
Semi Arid

Background: Histomoniasis is a disease caused by Histomonas meleagridis, a flagellated protozoan that can cause severe necrotizing hepatitis and typhlitis in several bird species. The disease has a cosmopolitan distribution. In experimental infection, peacocks (Pavo spp.) showed susceptibility to histomoniasis, however there are few reports on natural histomoniasis in this species. In northeastern Brazil, reports about its occurrence in avian species are scarce and nonexistent in peacocks. Therefore, this report aims to describe the epidemiological and clinicopathological aspects of a histomoniasis case in a peacock (Pavo cristatus) in the Brazilian semiarid region.Case: A 3-month-old male peacock with a history of apathy and anorexia was attended in the Veterinary Hospital of the Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, RN, Brazil. The animal was raised extensively in a farm without basic sanitary measures, also with a history of living with animals of different species. After clinical examination, in which intense apathy and weight loss were confirmed, the bird was submitted to emergency therapeutic measures, however there was no clinical improvement and the bird died. At necropsy, intense diffuse bilateral necrotizing typhlitis and multifocal to coalescent necrotizing hepatitis were observed. Fragments of the organs were collected in 10% formaldehyde buffered with phosphate-saline buffer for histopathological analysis and cecal content were collected for microbiological analysis. Histopathology of the cecum revealed transmural necrotizing typhlitis associated with myriads of trophozoites morphologically compatible with Histomonas meleagridis. The same microorganisms observed in association with necrotizing hepatitis lesions, which allowed the diagnosis of histomoniasis. Also, the bacterium Pantoea agglomerans was isolated from the cecal content.Discussion: The macroscopic and microscopic findings allowed the diagnosis and the first recording of histomoniasis in peacock in the semi-arid region of Rio Grande do Norte. The bird was raised in an extensive breeding and without sanitary management, such as the use of anthelmintics, which may favor infection by the nematode Heterakis gallinarum, that’ transmits the protozoan Histomonas meleagridis. The contamination, which begins by the orofecal route, happens through the ingestion of eggs of the nematode contaminated with H. meleagridis that pass through the gastrointestinal tract, reaching the ceca and causing intense lesions in the organ, such as the bilateral transmural typhlitis that we observed in this case. From ceca, the protozoan has access to the bloodstream and reaches the liver, where it causes necrotic hepatitis, also present in the peacock. Both cecal and hepatic lesions were associated with myriads of microorganisms morphologically compatible with H. meleagridis, which allowed the diagnosis of the disease. The challenge in diagnosing this disease occurs mainly due to nonspecific clinical signs, such as apathy and weight loss, the only signs reported by the breeder and observed in this peacock. Confirmation of the occurrence of histomoniasis in any region is important to establish the disease among the differential diagnoses for the species, as in this case. Since this is the first report of peacock histomoniasis in the semi-arid region of Rio Grande do Norte, it is evident the need to consider the disease among possible diagnoses in cases of nonspecific symptoms and it also demonstrates the need to implement control and prophylaxis measures in peacock breeding aiming to avoid losses of birds and economic losses to the breeders and to promote quality of life to the animals.

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