The objective of this solution is to promote a socio-environmental and multi-scale approach for long-term monitoring of the Claro River Basin, Colombia.
The high Andean ecosystems of Colombia, extending from high Andean forests and paramos to glacier ice caps, constitute dynamic landscapes because of the interaction of climate and land use change in a complex socioeconomic and political context, including new demographic dynamics and policies associated with the peace process and strict regulations for economic activities in the paramos. They are also considered to be among the most exposed and vulnerable socio-ecosystems to the impacts of climate change. There is substantial experience in environmental monitoring of Colombia’s high mountain ecosystems, including programs addressing biodiversity, carbon stocks, hydrology, glaciers, and land use dynamics. However, a conceptual and institutional framework for integrating these diverse initiatives was required (see IDEAM et al. 2018; Llambí et al. 2019).
The strategy for integrated monitoring of high Andean ecosystems in Colombia (EMA) constitutes a national framework to promote a socio-environmental and multi-scale approach for long-term monitoring of the different socio-ecosystems that make up high mountain areas in the country. The objectives of the EMA are:
- Evaluate the dynamics of variables and indicators linked with the ecological integrity, biodiversity, ecosystem services and the wellbeing of the population in high Andean socio-ecological systems in Colombia.
- Relate these dynamics with the main drivers of change operating at different spatiotemporal scales, including climate change and demographic, socioeconomic, and land use change processes.
- Evaluate the effectiveness of the main biodiversity conservation, ecosystem management and restoration strategies, and territorial governance schemes in the country to guide the decision-making process on local, regional, and national scales.
The Claro River Basin, located in the municipality of Villamaría (Caldas), has been selected as a pilot area for the implementation of the EMA, coordinated by the Institute of Hydrology, Meteorology and Environmental Studies (IDEAM) and the Humboldt Institute (IAvH) in collaboration with CONDESAN. The proposed work consists of generating a synthesis analysis of the state and trend of the socio-ecosystems of the area, which include the glacier (Nevado Santa Isabel), the páramo (Los Nevados complex) and the high Andean forest. Likewise, it contemplates the construction of a comprehensive protocol proposal for the monitoring of high mountain socio-ecosystems at the landscape or micro-basin scale. The selection of the Rio Claro basin as a pilot site is due to the extensive experience accumulated in research and long-term monitoring in this basin, where initiatives to monitor the dynamics of climate, glaciers, hydrology, carbon, biomass and biodiversity coincide with land use and ways of life of the local population.
The Rio Claro basin is located inside Los Nevados Natural Park, which has been declared an area of natural interest in 1974. It has an area of 58,300 ha and has heights ranging from 2,600 to 5,321 meters above sea level. In addition to having three of the six remaining glaciers in Colombia (Nevado del Ruiz, Nevado de Santa Isabel and Nevado del Tolima), the park constitutes the most important water reserve in the coffee region, since it supplies 38 municipalities and provides water to more than 3 million inhabitants. The páramo located within the Park has lost part of its territory due to cattle ranching and other changes in land use such as mining.
There are two areas in the basin: 1) the protected area with absolute restriction of uses where only ecotourism, preservation and research are allowed; 2) the complementary conservation strategy with criteria of ecosystem care in the páramo area.