Characterizing response of total suspended solids and total phosphorus loading to weather and watershed characteristics for rainfall and snowmelt events in agricultural watersheds

Danz, Mari E.; Corsi, Steven R.; Brooks, Wesley; Bannerman, Roger T.

doi:10.1016/j.jhydrol.2013.09.038

Cited by 20 publications

(22 citation statements)

References 22 publications

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“…A total of 16 watershed descriptors (Table 2), which have been commonly used in previous studies exploring the influences of watershed characteristics on specific water contaminant (Johnson et al, 1997;Xiao and Ji, 2007;Danz et al, 2013), were selected as potential factors controlling water contaminant in the statistical analysis. Morphometric variables including slope gradient, basin relief and hypsometric integral were calculated based on the DEM within ArcGIS 10.1.…”

Section: Potential Controlling Factorsmentioning

confidence: 99%

Spatial and seasonal patterns in stream water contamination across mountainous watersheds: Linkage with landscape characteristics

Shi

Yin

et al. 2015

Journal of Hydrology

116

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Section: Potential Controlling Factorsmentioning

confidence: 99%

Spatial and seasonal patterns in stream water contamination across mountainous watersheds: Linkage with landscape characteristics

Shi

Yin

et al. 2015

Journal of Hydrology

116

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“…Events in the fall do not generate as much runoff or erosion because most precipitation infiltrates into the relatively dry soil, rather than contributing to streamflow response (Lana‐Renault et al ., ). Both antecedent baseflow and antecedent precipitation were statistically analyzed as indicators of soil moisture conditions (Merz et al ., ; García‐Ruiz et al ., ; Lana‐Renault and Regüés, ; Danz et al ., ). For Paradise Creek, we found that antecedent baseflow was statistically significant in predicting sediment load while antecedent precipitation was not.…”

Section: Discussionmentioning

confidence: 97%

“…For several Wisconsin watersheds, Danz et al . () calculated that the largest 10% of events in each watershed represented 73‐97% of total sediment load.…”

Section: Introductionmentioning

confidence: 99%

“…Agricultural best management practices (BMPs) for controlling erosion tend to work well for average storms but may not achieve desired results during large storms (Edwards and Owens, ; Larson et al ., ; González‐Hidalgo et al ., ; Danz et al ., ) when hydrologically sensitive areas contribute the greatest amount of runoff and erosion (Walter et al ., ). In order to reduce sediment loads, the conditions that lead to large events need to be identified in order to appropriately target BMPs for the most sensitive time periods and locations.…”

Section: Introductionmentioning

confidence: 99%

“…Danz et al . () statistically analyzed the explanatory power of several weather and watershed conditions on sediment load response in eight Wisconsin watersheds and found that rainfall depth and antecedent baseflow were the most important predictors of sediment load for rainfall events; for snowfall events, load response was predicted by antecedent baseflow combined with variables that indicated an addition of water to the system and melt conditions. Eder et al .…”

Section: Introductionmentioning

confidence: 99%

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On the Role of Spatial, Temporal, and Climatic Forces on Stream Sediment Loading from Rural and Urban Ecosystems

Boll

Brooks

2017

J American Water Resour Assoc

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In this study, we characterize the greatest sediment loading events by their sediment delivery behavior; dominant climate, watershed, and antecedent conditions; and their seasonal distribution for rural and urban land uses. The study area is Paradise Creek Watershed, a mixed land use watershed in northern Idaho dominated by saturation excess processes in the upstream rural area and infiltration excess in the downstream urban area. We analyzed 12 years of continuous streamflow, precipitation, and watershed data at two monitoring stations. We identified 137 sediment loading events in the upstream rural section of the watershed and 191 events in the downstream urban section. During the majority of these events conditions were transport limited and the sediment flush occurred early in the event, generally in the first 20% of elapsed event time. Statistical analysis including two dozen explanatory variables showed peak discharge, event duration, and antecedent baseflow explained most of the variation in event sediment load at both stations and for the watershed as a whole (R2 = 0.73‐0.78). In the rural area, saturated soils combined with spring snowmelt in March led to the greatest loading events. The urban area load contribution peaked in January, which could be a re‐suspension of streambed sediments from the previous water year. Throughout the study period, one event contributed, on average, 33% of the annual sediment load but only accounted for 2% of the time in a year.

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Factors driving nutrient trends in streams of the Chesapeake Bay watershed

Ator¹,

Blomquist²,

Webber³

et al. 2020

J of Env Quality

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Despite decades of effort toward reducing nitrogen and phosphorus flux to Chesapeake Bay, water-quality and ecological responses in surface waters have been mixed. Recent research, however, provides useful insight into multiple factors complicating the understanding of nutrient trends in bay tributaries, which we review in this paper, as we approach a 2025 total maximum daily load (TMDL) management deadline. Improvements in water quality in many streams are attributable to management actions that reduced point sources and atmospheric nitrogen deposition and to changes in climate. Nutrient reductions expected from management actions, however, have not been fully realized in watershed streams. Nitrogen from urban nonpoint sources has declined, although waterquality responses to urbanization in individual streams vary depending on predevelopment land use. Evolving agriculture, the largest watershed source of nutrients, has likely contributed to local nutrient trends but has not affected substantial changes in flux to the bay. Changing average nitrogen yields from farmland underlain by carbonate rocks, however, may suggest future trends in other areas under similar management, climatic, or other influences, although drivers of these changes remain unclear. Regardless of upstream trends, phosphorus flux to the bay from its largest tributary has increased due to sediment infill in the Conowingo Reservoir. In general, recent research emphasizes the utility of input reductions over attempts to manage nutrient fate and transport at limiting nutrients in surface waters. Ongoing research opportunities include evaluating effects of climate change and conservation practices over time and space and developing tools to disentangle and evaluate multiple influences on regional water quality.

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Characterizing response of total suspended solids and total phosphorus loading to weather and watershed characteristics for rainfall and snowmelt events in agricultural watersheds

Cited by 20 publications

References 22 publications

Spatial and seasonal patterns in stream water contamination across mountainous watersheds: Linkage with landscape characteristics

Spatial and seasonal patterns in stream water contamination across mountainous watersheds: Linkage with landscape characteristics

On the Role of Spatial, Temporal, and Climatic Forces on Stream Sediment Loading from Rural and Urban Ecosystems

Factors driving nutrient trends in streams of the Chesapeake Bay watershed

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