<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2305-0683</journal-id>
<journal-title><![CDATA[Investigación Agraria]]></journal-title>
<abbrev-journal-title><![CDATA[Investig. Agrar.]]></abbrev-journal-title>
<issn>2305-0683</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ciencias Agrarias, UNA.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2305-06832022000200086</article-id>
<article-id pub-id-type="doi">10.18004/investig.agrar.2022.diciembre.2402717</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Discriminação da cobertura vegetal em uma região do Cerrado mato-grossense por meio do índice de vegetação por diferença normalizada]]></article-title>
<article-title xml:lang="en"><![CDATA[Discrimination of vegetation cover in a region of the Cerrado of Mato Grosso through the normalized difference vegetation index]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gomes de Oliveira]]></surname>
<given-names><![CDATA[Pedro Paulo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Scorpioni de Oliveira]]></surname>
<given-names><![CDATA[Deyse]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Costa de Oliveira Filho]]></surname>
<given-names><![CDATA[Paulo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado Martínez]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barúa Acosta]]></surname>
<given-names><![CDATA[Hugo Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vieira dos Santos Laroca]]></surname>
<given-names><![CDATA[Jackeline]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miranda-de-Oliveira]]></surname>
<given-names><![CDATA[Mateus]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Tamaulipas  ]]></institution>
<addr-line><![CDATA[Ciudad Victoria Tamaulipas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade Estadual do Centro-Oeste  ]]></institution>
<addr-line><![CDATA[Irati Paraná]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional de Asunción  ]]></institution>
<addr-line><![CDATA[San Lorenzo Departamento Central]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Faculdade de Ciências Sociais Aplicadas do Vale do São Lourenço  ]]></institution>
<addr-line><![CDATA[Jaciara Mato Grosso]]></addr-line>
<country>Brasil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>24</volume>
<numero>2</numero>
<fpage>86</fpage>
<lpage>94</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2305-06832022000200086&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2305-06832022000200086&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2305-06832022000200086&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO  Nas últimas décadas, a intensificação do processo de substituição da vegetação natural do Cerrado por áreas associadas às atividades antrópicas tem causado grandes impactos nas paisagens, nesse sentido, compreender a dinâmica dos diferentes sistemas ambientais em decorrência dos impactos causados pela variabilidade climática e pela ação humana, tem sido o esforço de vários pesquisadores. Assim, o presente trabalho teve como objetivo avaliar o potencial do índice de vegetação por diferença normalizada (NDVI) aplicado a imagens do satélite LANDSAT 8 para discriminar as classes de vegetação no período úmido e seco em uma região do Cerrado mato-grossense. Os valores de NDVI foram obtidos através da razão entre a diferença das refletividades do infravermelho próximo (&#961;IV) e do vermelho (&#961;V), e os dados foram processados no programa QGIS versão 3.10. Os resultados dessa pesquisa permitem concluir que o índice de vegetação NDVI utilizado permitiu analisar a dinâmica da vegetação no Vale do São Lourenço - MT. A vegetação da área de estudo comportou-se de acordo com a disponibilidade de água no perfil do solo, com maiores valores do índice de vegetação na estação chuvosa e baixa atividade fotossintética na estação seca.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In recent decades, the intensification of the process of replacing the natural vegetation of the Cerrado by areas associated with human activities has caused great impacts on landscapes, in this sense, understanding the dynamics of different environmental systems because of the impacts caused by climate variability and action human, has been the effort of several researchers. Thus, the present work aimed to evaluate the potential of the normalized difference vegetation index (NDVI) applied to LANDSAT 8 satellite images to discriminate vegetation classes in the wet and dry period in a Cerrado region of Mato Grosso. The NDVI values were obtained through the ratio between the difference between the near infrared (&#961;IV) and red (&#961;V) reflectivity&#8217;s, and the data were processed in the QGIS program version 3.10. The results of this research allow us to conclude that the NDVI vegetation index used allowed the analysis of the vegetation dynamics in Vale do São Lourenço - MT. The vegetation of the study area behaved according to the availability of water in the soil profile, with higher values of the vegetation index in the rainy season and low photosynthetic activity in the dry season.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[NDVI]]></kwd>
<kwd lng="pt"><![CDATA[Sensoriamento Remoto]]></kwd>
<kwd lng="pt"><![CDATA[SIG]]></kwd>
<kwd lng="en"><![CDATA[NDVI]]></kwd>
<kwd lng="en"><![CDATA[Remote sensing]]></kwd>
<kwd lng="en"><![CDATA[GIS]]></kwd>
</kwd-group>
</article-meta>
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