Spreadsheet Tools for River Evaluation, Assessment, and Monitoring: The STREAM Diagnostic Modules

Powell, George E.; Mecklenburg, Dan; Ward, Alexandra M.

doi:10.1061/40856(200)349

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…Directly measured (e.g., bankfull width, D 50 ) and calculated (e.g., shear stress, estimated bankfull discharge) hydrogeomorphic variables were compiled or calculated using the Reference Reach Spreadsheet 4.3L (Powell et al, 2006) in Microsoft Excel (2019. This spreadsheet tool was developed to calculate second-order variables using first-order variables as well as standards derived from regional curves for central Ohio (Supplementary Table 2).…”

Section: Hydrogeomorphic Featuresmentioning

confidence: 99%

Ecological Impacts of Altered Stream Hydrogeomorphic Characteristics Extend Beyond the Channel Boundary: Evidence From Urban Streams of Columbus, OH, United States

Rieck

Sullivan

2022

Front. Ecol. Evol.

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Urbanization in stream catchments can have strong effects on stream channel hydrogeomorphic features including channel dimensions, channel-floodplain connectivity, and flood regime. However, the consequences of hydrogeomorphic alterations on aquatic-terrestrial subsidy dynamics are largely unexplored. We examined the associations among hydrogeomorphic characteristics, emergent aquatic insect assemblages, and the density and trophic dynamics of riparian spiders of the family Tetragnathidae at 23 small urban stream reaches in the Columbus, OH (United States) Metropolitan Area. Naturally abundant stable isotopes of 13C and 15N were used to quantify the relative contribution of aquatically derived energy (i.e., nutritional pathways deriving from algae) to tetragnathid spiders and their trophic position. Bankfull discharge was negatively related to both emergence rate and family richness. On average, tetragnathid spiders relied on aquatically derived energy for 36% of their nutrition, with the greatest reliance found for spiders next to channels with wider flood-prone widths and proportionally fewer emergent insects of the family Chironomidae. Mean emergent aquatic insect reliance on aquatically derived energy was 32% and explained 44% of the variation in tetragnathid aquatically derived energy. A positive relationship between δ13C of tetragnathid spiders and emergent insects provides additional evidence of tetragnathid reliance on emergent insects. Mean tetragnathid trophic position was 2.85 and was positively associated with channel sinuosity and negatively associated with aquatic insect emergence rate. Sinuosity was also positively related to aquatically derived energy of emergent aquatic insects; as well as emergent insect family richness; % Ephemeroptera, Plecoptera, and Trichoptera (EPT); and aquatic insect emergence rate; implicating instream habitat-mediated shifts in emergent aquatic insect communities as an indirect mechanistic link between hydrogeomorphic processes and spiders. Our findings underscore that the impacts of stream hydrogeomorphic alterations can cascade into terrestrial food webs. These results suggest that monitoring and restoration of fluvial geomorphic form and function (e.g., sinuosity, slope, and hydrology) confer benefits to both aquatic and terrestrial riparian ecosystems in urban catchments.

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Section: Hydrogeomorphic Featuresmentioning

confidence: 99%

Ecological Impacts of Altered Stream Hydrogeomorphic Characteristics Extend Beyond the Channel Boundary: Evidence From Urban Streams of Columbus, OH, United States

Rieck

Sullivan

2022

Front. Ecol. Evol.

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“…Data collected from the stream geomorphology surveys were entered into the Reference Reach Spreadsheet (Powell, 2006b). This tool provided a graphical plot of the profile, pattern, dimensions, and particle distribution.…”

Section: Discharge Versus Recurrence Intervalmentioning

confidence: 99%

Beyond the Field: A Look at Agricultural Ditch Floodplains as a Water Quality BMP

Kallio¹,

Ward²,

D’Ambrosio³

et al. 2010

9th International Drainage Symposium Held Jointly With CIGR and CSBE/SCGAB Proceedings, 13-16 June 2010, Québec City Convention

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Agricultural fields, subsurface drainage, and a network of modified headwater systems dominate the landscape in the Midwest region of the United States. These systems are often the main conduits that export sediment and nutrients downstream, but very little is known about how these systems function. While most agricultural Best Management Practices (BMPs) focus on landscape measures to reduce sediment loss and water pollution little research has been performed on in-stream processes and channel system floodplains as agricultural BMPs. An important step in quantifying nutrient reduction capacities on floodplains is to predict discharges occurring on floodplains. This paper evaluates methods to predict the recurrence interval of discharges at ungaged sites and the annual exceedances of different discharge thresholds. Also presented is a study to evaluate the benefits of modifying channels to two-stage geometries that provide connection to floodplains and more bank storage. Preliminary results indicate that benches (small floodplains) should be located at elevations associated with about 25-35% of the 2-year discharge and they will usually flood about 10-60 days annually. Nitrate-N removal, in systems with flooded width ratios of 4 to 5 times the bankfull width, might be 5-20% of exports from fields if the treatment area (surface of the benches and inset channel) is about 1% of the watershed area. Results of this study are being used to develop a tool that quantifies the reduction in nitrate exports associated with different floodplain geometries and linear extent of the floodplains.

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“…Colorado State University's GeoTools offers an FDC computation focusing on the geomorphic implications of hydrology (Bledsoe et al 2007). Powell et al (2006) also provide FDC computation in a suite of spreadsheet tools known as the STREAM diagnostic modules.…”

Section: Discharge (Cfs) Percent Of Time Less Than or Equal To (%)mentioning

confidence: 99%

Development and Application of Flow Duration Curves for Stream Restoration

McKay¹,

Fischenich²

2016

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Spreadsheet Tools for River Evaluation, Assessment, and Monitoring: The STREAM Diagnostic Modules

Cited by 7 publications

References 24 publications

Ecological Impacts of Altered Stream Hydrogeomorphic Characteristics Extend Beyond the Channel Boundary: Evidence From Urban Streams of Columbus, OH, United States

Ecological Impacts of Altered Stream Hydrogeomorphic Characteristics Extend Beyond the Channel Boundary: Evidence From Urban Streams of Columbus, OH, United States

Beyond the Field: A Look at Agricultural Ditch Floodplains as a Water Quality BMP

Development and Application of Flow Duration Curves for Stream Restoration

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