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Keyword: geomorphology

Evaluating controls on nutrient retention and export in wide and narrow valley segments of a mountain river corridor

Publications Posted on: October 04, 2018
Over the past few decades, nitrate-nitrogen (NO3-N) concentrations have increased within streams of the central Rockies, a pattern linked to regional N deposition trends. As NO3-N concentrations increase, in-stream biological demand may become saturated and stream N export may increase. In mountain landscapes, streams generally flow through steep, narrow valleys with limited riparian area and strong stream-hillslope connectivity.

Fraser Experimental Forest

Experimental Forests and Ranges Posted on: September 09, 2015
Established in 1937 by the Forest Service, the Fraser Experimental Forest comprises 23,000 acres. This outdoor research laboratory was first established to study the relationship between forest management and water yield. Today, the Fraser Experimental Forest is a site for research on silviculture, riparian habitats, invasives, insects, soils, and other topics, in addition to water quantity and quality.

Geomorphology influences extent and composition of riparian plant communities at the watershed scale in central Nevada

Datasets Posted on: August 27, 2015
We conducted an observational study of the relationships between watershed-scale geomorphology and riparian vegetation using solely digital datasets. Watershed morphometry and geology were derived from Digital Elevation Models (DEMs) and geologic maps. Riparian corridors were classified into five vegetation types (riparian forest, riparian shrub, wet/mesic meadow, dry meadow, and shrub dry meadow) using high-resolution aerial photography.

Relationships between riparian vegetation and geomorphic process zones in the Toiyabe mountain range in Nevada

Datasets Posted on: August 27, 2015
We conducted a field observational study to investigate the ecological significance of the "process zone" geomorphic classification scheme for riparian ecosystem distribution, composition, and structure. We measured geomorphic characteristics at multiple scales in order to better understand relationships between geomorphology and riparian vegetation, and to suggest improvements to the classification scheme.

Valley confinement algorithm (VCA)

Projects Posted on: January 22, 2015
The Valley Confinement Algorithm (VCA) is a GIS based program that uses NHDPlus data to delineate unconfined valley bottoms. This webpage provides access to the VCA ArcGIS Toolbox script and documentation describing the program.

Information sources [Chapter 12]

Publications Posted on: February 05, 2013
The main information sources for the UVR consist of several web sites with general information and bibliographies. RMRS has publications on its Air, Water, Aquatic Environments (AWAE) Program Flagstaff web site. Another RMRS and University of Arizona website on semi-arid and arid watersheds contains a large, searchable bibliography of supporting information from the Beaver Creek watersheds, in the Middle Verde River area.

Summary and conclusions [Chapter 11]

Publications Posted on: February 05, 2013
Summaries and conclusions of each chapter are compiled here to provide a “Quick Reference” guide of major results and recommendations for the UVR. More detail can be obtained from individual chapters.

Research recommendations [Chapter 10]

Publications Posted on: February 05, 2013
This chapter contains a number of research recommendations that have developed from the 15 years of research on the UVR conducted by the Southwest Watershed Science Team, as well as from insights from key cooperators and contacts. It is meant to be our best insight as to where efforts should go now.

Fish and aquatic organisms [Chapter 9]

Publications Posted on: February 05, 2013
The UVR of central Arizona, from its source at Sullivan Lake to the mouth of Sycamore Creek, 60 km (38 mi) downstream, is rare among the State’s rivers because it still retains some of its native fish fauna.

A preliminary view of water quality conditions of the Upper Verde River [Chapter 8]

Publications Posted on: February 05, 2013
Stream water temperatures are of general interest because of interactive effects among physical, biological, and chemical parameters of water chemistry (Langford 1990). Water temperature regimes dictate the types of aquatic flora and fauna present within the aquatic system, as well as influence the system’s susceptibility to parasites and disease.

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