Utilizing intensive monitoring and simulations for identifying sources of phosphorus and sediment and for directing, siting, and assessing BMPs: The Genesee River example

Makarewicz, Joseph C.; Lewis, Theodore W.; Winslow, Mellissa J.; Rea, Evan; Dressel, Lindsay; Pettenski, Dale; Snyder, Blake; Richards, P. L.; Zollweg, James A.

doi:10.1016/j.jglr.2015.06.004

Cited by 13 publications

(4 citation statements)

References 18 publications

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“…Considering that discharge characteristics were similar to non-point source pollutants, the additional point sources and were treated the same as the non-point source pollutants in the calculation process. The SWAT model was largely used to simulate the spatiotemporal distribution and source attribution of pollutant loads [31,32] and assess the impacts of management measures on nutrient export rates [33,34], i.e., which hydrologic cycle simulation was based on a water balance equation and used the Green-Ampt method or the Soil Conservation Service (SCS) curve number (CN) technique [35] to calculate surface runoff volume. The SWAT model, however, did not specifically create a systematic solution for file preparation of point source and non-point source.…”

Section: Simulation Of Pollutant Inflowing Loadsmentioning

confidence: 99%

Basin-Scale Pollution Loads Analyzed Based on Coupled Empirical Models and Numerical Models

Zhang

Chen

Yang

et al. 2021

IJERPH

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Pollutant source apportionment is of great significance for water environmental protection. However, it is still challenging to accurately quantify pollutant loads at basin-scale. Refined analytical methods combined the pollution discharge coefficient method (PDCM), field observation, and numerical model (Soil & Water Assessment Tool, SWAT) to make quantitative source appointment in the Tuojiang River, a key tributary of the upper Yangtze River. The chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP), and ammonia nitrogen (N-NH4+) were analyzed. Results showed that the urban sewage treatment plant point source has the largest contribution to COD, TN, and N-NH4+, while TP is mostly from the agricultural sources throughout the year. The total inflowing loads of pollution sources are significantly affected by rainfall. The overall pollution characteristics showed that pollutant loads present in different seasons are as follows: wet season > normal season > dry season. The month with the highest levels of pollutants is July in the wet season. Among the nine cities, the city that contributes the most COD, TN and N-NH4+, is Neijiang, accounting for about 25%, and the city that contributes the most TP is Deyang, accounting for 23%. Among the sub-basins, the Fuxi River subbasin and Qiuxihe River subbasin contribute the most pollutant loads. The technical framework adopted in this paper can be used to accurately identify the types, administrative regions and sub-basins of the main pollution sources in the watershed, which is conducive to management and governance of the environment.

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Section: Simulation Of Pollutant Inflowing Loadsmentioning

confidence: 99%

Basin-Scale Pollution Loads Analyzed Based on Coupled Empirical Models and Numerical Models

Zhang

Chen

Yang

et al. 2021

IJERPH

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“…Monitoring by Monroe County and the local community will carry on, though, with a focus on new contaminants. In recent years, some of the main concerns to researchers interested in the river and the lake are phosphorus and sediment loading (Makarewicz et al 2015 ). Though this may differ from what originally peaked the interest in the pollution of the freshwater resources in and around Rochester, the investigation of potential pollutants and maintenance of clean water has remained critical.…”

Section: Waste Water Treatment and Combined Sewer Overflow Systems Inmentioning

confidence: 99%

Rochester’s rivers, lake, and waste: teaching local environmental history using water case studies

et al. 2020

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In a non-majors upper-level undergraduate environmental history course focused on the Laurentian Great Lakes, students researched and wrote micro-histories of the Rochester, NY area. Many were focused on water—quantity, quality, recreation, and pollution. This article briefly explains the approach and its potential applications to other interdisciplinary water courses. Then five of the original micro-water history cases are presented. It concludes with the lessons learned as a class and for teaching local water history in the future incorporating the previous class’ findings.

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“…In this context, consultation with watershed stakeholders, for instance, watershed specialists and local farmers of the study area, is crucial for the application of sustainable BMPs in the field. The models developed using the data from field monitoring along with the direct involvement of stakeholders [41] can be helpful in better understanding the water and nutrient transport processes [42,43]. Besides modeling, active stakeholder engagement from the onset of project design is equally important for sustainable water quality management to integrate the stakeholder's perceptions of water quality problems, indigenous knowledge, expertise, and rights in the decision-making process [44][45][46].…”

Section: Introductionmentioning

confidence: 99%

Monitoring, Modeling and Planning Best Management Practices (BMPs) in the Atwood and Tappan Lake Watersheds with Stakeholders Engagements

Sharma,

Bijukshe,

Puppala

2023

Water

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This study was conducted in the Atwood and Tappan Lakes watersheds of the Tuscarawas basin of Ohio. The flow, total nitrogen (TN), and total phosphorus (TP) loadings were monitored with the help of local stakeholders for a few years at various locations of the watershed to develop the Soil and Water Assessment Tool (SWAT). The multi-site SWAT model calibration and validation were accomplished with a reasonable model performance. In the next step, the scenario analysis was conducted in the SWAT model using various BMPs, including vegetative filter strips, grass waterways, fertilizer reduction, crop rotation, and cover crops to evaluate their performance in reducing TN and TP from the watershed. While BMPS in many studies are decided based on researchers’ intuition, these BMPs were selected based on active consultation with the local stakeholders, who were engaged in the reduction of TN and TP loadings from the watersheds. Since the SWAT model calibration for TN and TP was not as good as the hydrologic model calibration, various scenarios of TN and TP reduction using BMPs were investigated for several years using both calibrated and uncalibrated SWAT models. We examined all the BMPs in 12 sub-watersheds of the Atwood and 10 sub-watersheds of the Tappan Lake watershed. The analysis indicated that the management practices of cover crops (rye) in combination with grass waterways with a 10% fertilizer reduction could minimize the TN and TP loading by as much as 88%, without significantly compromising the agricultural yield. However, a 10% fertilizer reduction without any BMPs could reduce TN and TP by just 9%. The cover crop (rye) including 10% fertilizer reduction with grass waterways seemed to be the most effective in reducing TN and TP, whereas the implementation of a filter strip led to a 70% reduction and was the next effective BMPs in reducing TN and TP loadings. In general, TN losses were reduced by 8% to 53%, while TP losses were reduced by 7% to 88%, depending on the BMPs used. By and large, the TN and TP reduction achieved through the calibrated model was not significantly different from the uncalibrated model, even though the reduction using the calibrated model was slightly higher for all scenarios than that of the uncalibrated model. The TN and TP loadings were highly sensitive to cattle grazing. When just 50% of the cattle were permitted to graze, the model predicted that there would be a 40% increase in total nitrogen and a 70% increase in total phosphorus in both watersheds. Our investigation revealed that monitoring the watershed at a small sub-watershed scale and calibrating the SWAT model for nitrogen and phosphorus is delicate.

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Utilizing intensive monitoring and simulations for identifying sources of phosphorus and sediment and for directing, siting, and assessing BMPs: The Genesee River example

Cited by 13 publications

References 18 publications

Basin-Scale Pollution Loads Analyzed Based on Coupled Empirical Models and Numerical Models

Basin-Scale Pollution Loads Analyzed Based on Coupled Empirical Models and Numerical Models

Rochester’s rivers, lake, and waste: teaching local environmental history using water case studies

Monitoring, Modeling and Planning Best Management Practices (BMPs) in the Atwood and Tappan Lake Watersheds with Stakeholders Engagements

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