Repositorio Digital Marítimo, Fluvial y Costero

Perea Ardila, Mauricio Alejandro and Murillo Sandoval, Paulo J.. (2022). Monitoring mangrove change in the Colombian Pacific: Mangrove gain in the Sanquianga National Park. Virtual y Asunción, Paraguay: AmeriGEO Week 2022.

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Abstract

Sanquianga National Natural Park (PNNS) holds the most extensive mangrove area in the Colombian Pacific and South America. Anthropogenic changes associated with the detour of the Patía River into the Sanquianga River in 1972. In this study, we determine mangrove cover gains and losses using JERS 1 SAR and ALOS-PALSAR imagery over two time periods 1996-2007 and 2007-2017. Additionally, we estimated aboveground biomass (AGB) and C contents and calculated avoided emissions from deforestation. The results reflected a net increase in 21 years of mangrove cover of 243.97 ha and estimated losses of 122.30 ha where 68.48% of these were focused on the Guacama mouth. The PNNS recorded an average AGB of 393.15 Ton/ha and an average C of 196.58 TonC/ha for 2017. Total avoided potential emissions from deforestation were estimated at 28 277 944.8 GgCO2eq. The PNNS is a potential area for the development of Blue Carbon projects.

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Item Type:	General
Number of pages::	1
Additional Information:	Poster presentation
Uncontrolled Keywords:	Mangrove. River. Satellites
Geographical coverage :	Colombia. Pacífic. Nariño. La Tola. Sanquianga National Park
Depositing User:	Dirección General Marítima
Official URL:	https://2022amerigeoweek.amerigeo.org/

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