Paramos are neotropical alpine grasslands located in the northern Andes of South America. Although they cover important headwater regions, little is known about the hydro-geomorphic characteristics of paramo river systems, which are increasingly being impacted by human use and climate change. The objective of this research is to characterize the geomorphology of the Ningar River, Ecuador, an Amazonian headwater river that drains a 22.7 km2 paramo sub-basin, by (1) classifying the geomorphology based on common geomorphic classifications, (2) deriving downstream hydraulic geometry relationships, and (3) performing a global comparison with mountain river systems. Common geomorphic field surveying techniques were used to acquire the necessary data. Results suggest that the Ningar River has similar form-function characteristics as other known mountain headwater streams and corresponds to commonly known stream classification systems, but displays more of an alluvial character than might be expected for montane headwater streams as a result of a convexity in the stream's longitudinal profile. Additionally, preliminary analyses suggest that other paramo headwater streams may exhibit similar characteristics; thus, the findings of this research are important for future management and protection of these valuable headwater ecosystems.
Appalachian State Univ, Dept Geog & Planning, Boone, NC 28608 USA
Recommended Citation:
Ely, Christopher P.,Martin, Derek J.. Investigating the geomorphic characteristics of an Amazonian headwater stream draining a paramo ecosystem[J]. PHYSICAL GEOGRAPHY,2019-01-01,40(2):164-185