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 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 Investigating the prevalence of Bark beetles of Pinus halepensis in the North East semi-arid region of Algeria

2021 ◽  
Vol 22 (7) ◽  
Author(s):  
Lyès Moumeni ◽  
AMANDINE GASTEBOIS ◽  
LOUIZA GILLMANN ◽  
NICOLAS PAPON ◽  
FARIDA BENIA ◽  
...  
Keyword(s):  
Arid Region ◽  
Bark Beetles ◽  
Pinus Halepensis ◽  
Aleppo Pine ◽  
Prevention Measures ◽  
North East ◽  
The North ◽  
Pine Trees ◽  
Semi Arid Region ◽  
Semi Arid

Abstract. Moumeni L, Gastebois A, Gillmann L, Papon N, Benia F, Bouchara J-P, Bounechada M. 2021. Investigating the prevalence of Bark beetles of Pinus halepensis in the North East semi-arid region of Algeria. Biodiversitas 22: 2755-2762. Aleppo pine is the most common tree in the semi-arid forests of Algeria. Despite its high resistance to drought and adaptability to all types of soils, the effects of climate change are affecting it directly and indirectly. Stressed trees indeed are subject to bark beetle attacks. In this study, we sampled the bark beetles directly from the affected pine trees. Six species belonging to the Scolytinae subfamily were identified. Tomicus detruens and Orthotomicus erosus were widely spread and present in the three studied forests, where they were found to colonize living trees while Crypturgus numidicus, Crypturgus mediterraneus, Hylurgus ligniperda and Hylurgus micklitzi colonized only dead trees. Together with future identification of the microfungi associated with these xylophagous insects, these data may help to define prevention measures to fight the decline of Aleppo pine forests observed in some parts of Eastern Algeria.

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 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 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

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