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Open AccessArticle

Synthesis of Vegetation Indices Using Genetic Programming for Soil Erosion Estimation

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Facultad de Ingeniería, Universidad Autónoma de San Luis Potosí, Dr. Manuel Nava 8, Zona Universitaria Poniente, 78290 San Luis Potosí, Mexico
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EvoVisión Laboratory, CICESE Research Center, Carretera Ensenada-Tijuana 3918, Colonia Playitas, 22860 Ensenada, B.C., Mexico
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Instituto Pirenaico Ecología (CSIC), Av. Montañana apdo, 13034 Zaragoza, Spain
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Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(2), 156; https://doi.org/10.3390/rs11020156
Received: 17 December 2018 / Revised: 9 January 2019 / Accepted: 9 January 2019 / Published: 15 January 2019
(This article belongs to the Section Remote Sensing Image Processing)
Vegetation Indices (VIs) represent a useful method for extracting vegetation information from satellite images. Erosion models like the Revised Universal Soil Loss Equation (RUSLE), employ VIs as an input to determine the RUSLE soil Cover factor (C). From the standpoint of soil conservation planning, the C factor is one of the most important RUSLE parameters because it measures the combined effect of all interrelated cover and management variables. Despite its importance, the results are generally incomplete because most indices recognize healthy or green vegetation, but not senescent, dry or dead vegetation, which can also be an important contributor to C. The aim of this research is to propose a novel approach for calculating new VIs that are better correlated with C, using field and satellite information. The approach followed by this research is to state the generation of new VIs in terms of a computer optimization problem and then applying a machine learning technique, named Genetic Programming (GP), which builds new indices by iteratively recombining a set of numerical operators and spectral channels until the best composite operator is found. Experimental results illustrate the efficiency and reliability of this approach to estimate the C factor and the erosion rates for two watersheds in Baja California, Mexico, and Zaragoza, Spain. The synthetic indices calculated using this methodology produce better approximation to the C factor from field data, when compared with state-of-the-art indices, like NDVI and EVI. View Full-Text
Keywords: vegetation indices; RUSLE; image synthesis; C factor; evolutionary computation; genetic programming vegetation indices; RUSLE; image synthesis; C factor; evolutionary computation; genetic programming
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MDPI and ACS Style

Puente, C.; Olague, G.; Trabucchi, M.; Arjona-Villicaña, P.D.; Soubervielle-Montalvo, C. Synthesis of Vegetation Indices Using Genetic Programming for Soil Erosion Estimation. Remote Sens. 2019, 11, 156.

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