Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/87609
Type: Artigo de periódico
Title: The Use Of Alos/palsar Data For Estimating Sugarcane Productivity
Author: Picoli M.C.A.
Lamparelli R.A.C.
Sano E.E.
Rocha J.V.
Abstract: Some models have been developed using agrometeorological and remote sensing data to estimate agriculture production. However, it is expected that the use of SAR images can improve their performance. The main objective of this study was to estimate the sugarcane production using a multiple linear regression model which considers agronomic data and ALOS/PALSAR images obtained from 2007/08, 2008/09 and 2009/10 cropping seasons. The performance of models was evaluated by coefficient of determination, t-test, Willmott agreement index (d), random error and standard error. The model was able to explain 79%, 12% and 74% of the variation in the observed productions of the 2007/08, 2008/09 and 2009/10 cropping seasons, respectively. Performance of the model for the 2008/09 cropping season was poor because of the occurrence of a long period of drought in that season. When the three seasons were considered all together, the model explained 66% of the variation. Results showed that SAR-based yield prediction models can contribute and assist sugar mill technicians to improve such estimates.
Editor: Sociedade Brasileira de Engenharia Agricola
Rights: aberto
Identifier DOI: 
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84924102946&partnerID=40&md5=d4f1f85aae0598c719a89fba0a8b8f53
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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