Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional de Colombia
2022
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=49674890004 https://www.redalyc.org/journal/496/49674890004/ https://www.redalyc.org/journal/496/49674890004/html/ https://www.redalyc.org/journal/496/49674890004/49674890004.epub https://www.redalyc.org/journal/496/49674890004/movil |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Table of Contents:
- Vegetation indices for Pontederia crassipes Pellegrini & Horn and multitemporal distribution in the Hydroituango reservoir Mayra Alejandra Allín-Cañas July Andrea Suárez-Gómez Luis Jairo Toro-Restrepo Manuela Andrea Rueda-Trujillo Ingeniería sentinel spread rate Precipitation water hyacinth timely detection Pontederia crassipes Pellegrini & Horn (water hyacinth) is an invasive, world-wide distributed aquatic plant, which has been evinced in the reservoir of the Ituango Hydroelectric Project - IHP (Colombia) since 2018. In this study, the ability of several Vegetation Indices (VIs) to detect P. crassipes was evaluated based on monthly Sentinel-2 images, between September 2018 and March 2020. The invasive capacity of P. crassipes was demonstrated with covered area doubling each month in the IHP reservoir. A maximum 32-fold increase of P. crassipes in just one month was registered during the rainy season and resulted in a 104-ha expansion. Results based on Cl red edge, MSR, and DVI were consistent and had less deviations from normality. Our results highlight the importance of new-generation sensors to discriminate and map the spatial distribution of P. crassipes for the development of efficient monitoring and management strategies at the reservoir scale. 2022 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49674890004 https://www.redalyc.org/journal/496/49674890004/ https://www.redalyc.org/journal/496/49674890004/html/ https://www.redalyc.org/journal/496/49674890004/49674890004.epub https://www.redalyc.org/journal/496/49674890004/movil 10.15446/dyna.v89n223.99137 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.223 Vol.89