Monitoring and assessment of desertification using remote sensing
نویسندگان
چکیده
El análisis de cambio los ecosistemas representa un aspecto clave para evaluar impactos producidos por la desertificación. La desertificación afecta a suelos con gran inestabilidad y, en algunos casos, produce respuestas abruptas e irreversibles. Por ello, evaluación y modelización dinámica espacio-temporal teledetección es una prioridad investigación. Es importante cómo al porcentaje cubierta vegetal. Pero también muy conocer distribución especies su estado funcional. No obstante, existen aún muchos retos que debemos abarcar optimizar información obtenida degradados o tierras secas. Una las principales limitaciones radica baja relación señal/ruido vegetación caracterizada tener alta reflectancia suelo relativamente escasa heterogénea. En este trabajo, identificamos aspectos mejorarían fiabilidad realizados teledetección. concreto recomendamos i) intensificar el estudio indicadores incluyendo cambios estructura, funcionalidad composición, ii) mejorar estimación estructurales funcionales usando modelos físicos avanzados computación, iii) diversidad efecto multiescala muestreo resolución espacial imágenes, iv) analizar procesos composición partir dinámicos contemplen permitan compresión del impacto servicios ecosistémicos.
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ژورنال
عنوان ژورنال: Ecosistemas
سال: 2021
ISSN: ['1697-2473']
DOI: https://doi.org/10.7818/ecos.2240