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		<isbn>978-85-17-00088-1</isbn>
		<label>60188</label>
		<citationkey>RasconSilvRoch:2017:AnUsCo</citationkey>
		<title>Análise do uso e cobertura do solo na Floresta Nacional de Altamira por meio de imagens binárias geradas a partir de Índices de Vegetação</title>
		<format>Internet</format>
		<year>2017</year>
		<secondarytype>PRE CN</secondarytype>
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		<size>884 KiB</size>
		<author>Rascon, Nilton Junior Lopes,</author>
		<author>Silva, Jonatas Lopes da,</author>
		<author>Rocha, Licio Mota da,</author>
		<electronicmailaddress>niltonrascon@yahoo.com.br</electronicmailaddress>
		<editor>Gherardi, Douglas Francisco Marcolino,</editor>
		<editor>Aragão, Luiz Eduardo Oliveira e Cruz de,</editor>
		<e-mailaddress>daniela.seki@inpe.br</e-mailaddress>
		<conferencename>Simpósio Brasileiro de Sensoriamento Remoto, 18 (SBSR)</conferencename>
		<conferencelocation>Santos</conferencelocation>
		<date>28-31 maio 2017</date>
		<publisher>Instituto Nacional de Pesquisas Espaciais (INPE)</publisher>
		<publisheraddress>São José dos Campos</publisheraddress>
		<pages>3176-3183</pages>
		<booktitle>Anais</booktitle>
		<organization>Instituto Nacional de Pesquisas Espaciais (INPE)</organization>
		<transferableflag>1</transferableflag>
		<abstract>Conservation units have great effectiveness for the maintenance of natural resources in the long term. National Forest - FLONA is one of the categories that make up the National System of Conservation Units - NSCU created in the year 2000. The Altamira National Forest was created with the main objective of maintaining biodiversity at the Tapajós endemism center. In order for these units to fulfill their purpose, it is necessary to understand the temporal evolution of the use and occupation of their territory. Therefore, the objective of this work was to evaluate the dynamics of soil use and cover of the National Forest of Altamira by means of binary images generated from NDVI images. For this, Landsat images of the years of 1999, 2006 and 2016 were pre-processed through radiometric calibration and atmospheric correction. Subsequently, the NDVI images were converted to binary images using as reference values 0.52 for image of 1999 and 2006 and 0.80 for image of 2016. In 2016 the Forest class occupied 99.16% of the conservation unit, a reduction of 0.43% in relation to 2006. In the same period, the Deforestation Rate was 350 hectares and the Natural Regeneration Rate was 121 hectares. The highest pressure is located in the southern region where the deforested areas are concentrated. Considering that, the unit is located in a region under intense land and environmental conflicts, the high percentage of the Forest class in 2016 shows that the unit has been fulfilling its creation objectives.</abstract>
		<area>SRE</area>
		<type>Áreas protegidas</type>
		<language>pt</language>
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