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- Title
IDENTIFICACIÓN DE ZONAS CON PRESENCIA DE RETAMO ESPINOSO (Ulex europaeus), UTILIZANDO TELEDETECCIÓN ESPACIAL, EN EL MUNICIPIO DE SIBATÉ [CUNDINAMARCA].
- Authors
Ávila Vélez, Edier Fernando; Herrera Martínez, Luis Alberto; Celis Forero, Álvaro
- Abstract
Contextualization: Invasive plants, such as thorny broom (Ulex europaeus), have a negative impact on biodiversity and on the normal development of the ecosystems in territories where it is present. Also, those plants reduce the area available for cultivation, which leads to decrease of the harvests. Knowledge gap: it is pertinent to develop low-cost and effective methodologies to identify the areas affected by this type of weeds; that way, the obtained information could be used to reduce the impact of those plants on the environment and in the peasant communities of the area. Purpose: To implement a proposal for the identification of the areas affected by the invasive thorny broom plant in the municipality of Sibaté, Cundinamarca. Methodology: First, with the peasant community of the municipality, were identified and georeferenced some areas where the plant is present; next, using a satellite and multispectral image [from PlanetScope] of the identified and georeferenced areas, the spectral intensity values of the image were calculated. Then, statistical analyzes of the percentiles were realized, and the 25th and 75th percentiles were quantified; after that, the pixels with some degree of probability of the presence of the invasive plant were calculated, using the "Hot Spot" algorithm or "hot zones". Finally, the areas with probable presence of thorny brooms were validated, using unmanned aerial vehicles (UAV). Results and conclusions: It was possible to identify points and areas where there is, possibly, presence of thorny brooms in the municipality of Sibaté, Cundinamarca. There are two areas where the proposed methodology was applied in the center of the municipality, with a 99% probability of having the invasive plant; at the same time, eight points with a probability of 95% of presence of the plant were evidenced; finally, were found eight points with a probability of 90% of the presence of the invasive plant. At the end, part of the areas and points with possible presence of the plant were corroborated, implementing unmanned flights. A high spatial correlation was observed between the georeferenced areas and the areas corroborated in the field, which is relevant for ecological restoration processes.
- Subjects
CUNDINAMARCA (Colombia : Dept.); RESTORATION ecology; COMMUNITIES; INVASIVE plants; REMOTE-sensing images; RADIANT intensity; PLANT invasions; CITIES &; towns
- Publication
Revista de Investigación Agraria y Ambiental, 2023, Vol 14, Issue 1, p201
- ISSN
2145-6097
- Publication type
Article
- DOI
10.22490/21456453.5840