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Cólculo de la severidad de incendios en el periodo 2017 a 2020 en la subcuenca del río chambo, mediante teledetección y el anólisis geo estadístico
| Dominio de las Ciencias
Cólculo de la severidad de incendios en el periodo 2017 a 2020 en la subcuenca del río chambo, mediante teledetección y el anólisis geo estadístico
Ãndice de Vegetación de Diferencia Normalizada (NDVI), Ãndice de Ãrea Quemada (BAI), Ãndice de Calcinación Normalizada (NBR), Ãrea Quemada Normalizada (NBA), Software Terrset.
Resumen
Los incendios resultan fenómenos incontrolables en donde el fuego devasta con la biodiversidad afectando los servicios eco sistémicos de los herbazales, arbustales y bosques, en este sentido el presente estudio cuantificó la severidad de las zonas incendiadas en la subcuenca del rio Chambo en el período 2017 a 2020 mediante la utilización de imógenes satelitales Landsat 8 obtenidas de la plataforma Google Earth Engine, a través del cólculo de los índices espectrales NDVI, BAI y NBR, posteriormente se combinaron los índices espectrales: índice de írea quemada (BAI) y el índice de Calcinación Normalizada (NBR) para corregir la detección de los polígonos de zonas quemadas, obteniendo un índice mejorado denominado índice de severidad írea Quemada Normalizada (NBA), cuyos valores fueron clasificados en alta, media y baja severidad. Para la evaluación de la intensidad de transición se utilizó el Software TerrSet que permitió determinar las ganancias y pérdidas de cada categoría. Los resultados señalan que la mayor cantidad de polígonos detectados como incendios se localizaron en el ecosistema Herbazal de Póramo con un total de 3313,51 hectóreas, con valores altos de severidad que oscilan entre 200 y 509,68. La intensidad de transición determinó que el período entre los años 2019 a 2020 tiene la tasa de cambio mós alta correspondiente a 0,80 hectóreas de alta severidad de incendios.
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Vasco-Lucio, M. M., Guaiña-Yungán, J. I., Ati-Cutiupala, G. M., & Lara-Vásconez, N. X. (2022). Cólculo de la severidad de incendios en el periodo 2017 a 2020 en la subcuenca del río chambo, mediante teledetección y el anólisis geo estadístico. Dominio De Las Ciencias, 8(2), 84–96. https://doi.org/10.23857/dc.v8i2.2744
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