Challenges and opportunities for restoration of high-elevation Andean peatlands in Ecuador

Esteban Suarez (), Segundo Chimbolema, Ricardo Jaramillo, Leo Zurita-Arthos, Paul Arellano, Rodney A. Chimner, John S. Stanovick and Erik A. Lilleskov
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Esteban Suarez: Universidad San Francisco de Quito
Segundo Chimbolema: Universidad San Francisco de Quito
Ricardo Jaramillo: Universidad San Francisco de Quito
Leo Zurita-Arthos: Universidad San Francisco de Quito
Paul Arellano: Michigan Technological University
Rodney A. Chimner: Michigan Technological University
John S. Stanovick: USDA Forest Service Northern Research Station
Erik A. Lilleskov: USDA Forest Service Northern Research Station

Mitigation and Adaptation Strategies for Global Change, 2022, vol. 27, issue 4, No 4, 17 pages

Abstract: Abstract Páramo peatlands are a regional reservoir of biodiversity and ecosystem services, accumulating large amounts of carbon and buffering water flows. Despite their importance, they have a long history of use and impacts including drainage for agriculture and grazing, and water withdrawal for human uses. Here we present a preliminary assessment of the conservation status of páramo peatlands in Ecuador and, using a case study, discuss peatland restoration as a tool for mitigation and adaptation to the impacts of current climate change. Through a simple index assessing the cumulative presence of signs of human activities on 163 peatland sites, we found that the level of impact was higher for peatlands located in the Western branch of the cordillera, whereas current human population density, precipitation, and elevation were not significant predictors of the levels of impact. Also, starting in 2017, we implemented a pilot restoration initiative on a 21-ha peatland which had been drained and converted into pasture for at least 150 years. The restoration consisted of two ditch blocking techniques implemented to stop fast-moving water and promote the rewetting of the peatland. During the next 3 years, water table increased from 27 ± 3 cm below the soil surface to 7 ± 1 cm by 2021, while wetland plant communities are colonizing and closing the pools in the blocked ditches. Re-wetting of the peatland has led to an increase in the abundance of native species. This case study suggests that restoration initiatives are an efficient and cost-effective approach to a better management of páramo peatlands, with high potential as a tool for mitigation and adaptation to climate change.

Keywords: Páramo; Peatlands; Ecuador; Restoration; Andes; Human impact (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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DOI: 10.1007/s11027-022-10006-9

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