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		<isbn>978-85-17-00088-1</isbn>
		<label>59858</label>
		<citationkey>TramontinaVieSalRosSil:2017:AnErSu</citationkey>
		<title>Análise da erosão superficial na área de influência indireta da Usina Hidrelétrica Dona Francisca-RS</title>
		<format>Internet</format>
		<year>2017</year>
		<secondarytype>PRE CN</secondarytype>
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		<size>1077 KiB</size>
		<author>Tramontina, Juliana,</author>
		<author>Viel, Jorge Antônio,</author>
		<author>Saldanha, Dejanira Luderitz,</author>
		<author>Rosa, Kátia Kellem da,</author>
		<author>Silva, Tatiana Silva da,</author>
		<electronicmailaddress>tramontina.ju@gmail.com</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>3600-3607</pages>
		<booktitle>Anais</booktitle>
		<organization>Instituto Nacional de Pesquisas Espaciais (INPE)</organization>
		<transferableflag>1</transferableflag>
		<abstract>The Universal Soil Loss Equation (USLE) mathematically describes the contribution of the most important factors in the soil loss process, and is the largest reference for estimating soil loss in Brazil. The objective of this article is to analyze the superficial erosion in the area under the influence of Dona Francisca hydroelectric power plant using a GIS-based model integrating USLE. According to the model results, the study area experienced a average soil loss of 935 kg/ha/year, which is considered low, when compared to other results. About 83% of the study area presented soil loss values between 0 and 1t/ha/year, and only 2% of the area showed loss soil values higher than 4t/ha/year. The areas covered by agriculture and/or livestock, were the ones that contributed most to the formation of sediments (laminar erosion), due to the agricultural practices developed in areas of high slopes, as is the case of the cultivation of tobacco in hillsides. Regarding the cumulative effects of the variables composing the model, it is worth mentioning that the lack of vegetation cover associated with high slopes and intense precipitation are the conditions leading to higher soil loss values, which is worsen when combined to inadequate management related to non-conservationist practices.</abstract>
		<area>SRE</area>
		<type>Monitoramento e modelagem ambiental</type>
		<language>pt</language>
		<targetfile>59858.pdf</targetfile>
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