Streamflow, sediment load, and water quality study of Hoseanna Creek Basin near Healy, Alaska: 1992 Progress Report

In this study, we investigated the impact of climate change on streamflow and water quality (TSS, T-N, and T-P loads) in the upper Dong Nai River Basin using the Soil and Water Assessment Tool (SWAT) hydrological model. The calibration and validation results indicated that the SWAT model is a reasonable tool for simulating streamflow and water quality for this basin. Based on the well-calibrated SWAT model, the responses of streamflow, sediment load, and nutrient load to climate change were simulated. Climate change scenarios (RCP 4.5 and RCP 8.5) were developed from five GCM simulations (CanESM2, CNRM-CM5, HadGEM2-AO, IPSL-CM5A-LR, and MPI-ESM-MR) using the delta change method. The results indicated that climate in the study area would become warmer and wetter in the future. Climate change leads to increases in streamflow, sediment load, T-N load, and T-P load. Besides that, the impacts of climate change would exacerbate serious problems related to water shortage in the dry season and soil erosion and degradation in the wet season. In addition, it is indicated that changes in sediment yield and nutrient load due to climate change are larger than the corresponding changes in streamflow.

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Granger Drain subbasin selected for a national water-quality study

Fact Sheet ◽

10.3133/fs08203 ◽

2003 ◽

Cited By ~ 1

Author(s):

Keyword(s):

Water Quality ◽

Quality Study ◽

National Water

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Water quality in the vicinity of Fenton Hill. Progress report 1981 and 1982

10.2172/5595725 ◽

1983 ◽

Author(s):

W.D. Purtymun ◽

R.W. Ferenbaugh ◽

N.M. Becker ◽

W.H. Adams ◽

M.N. Maes

Keyword(s):

Water Quality ◽

Progress Report

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Impacts of Stone Mining and Crushing on Stream Characters and Vegetation Health of Dwarka River Basin of Jharkhand and West Bengal, Eastern India

Journal of Environmental Geography ◽

10.1515/jengeo-2017-0002 ◽

2017 ◽

Vol 10 (1-2) ◽

pp. 11-21 ◽

Cited By ~ 7

Author(s):

Swades Pal ◽

Indrajit Mandal

Keyword(s):

Water Quality ◽

River Basin ◽

Sediment Load ◽

Combination Method ◽

Eastern India ◽

Dust Deposition ◽

Gangetic Plain ◽

Total Dissolved Solid ◽

The Impact ◽

Vulnerable Zones

AbstractDwarka River basin (3882.71 km2) of Eastern India in the Chotonagpur Plateau and Gangetic Plain is highly affected by stone mining and crushing generated dust. In the middle catchment of this basin, there are 239 stone mines and 982 stone crushing units. These produce approximately 258120 tons of dust every year and this dust enters into the river and coats the leaves of plants. On the one hand, this is aggrading in the stream bed, increasing sediment load, decreasing water quality, specifically increasing total dissolved solid, pH, water colour, and it also degrades the vegetation quality. Vegetation quality is also degraded as indicated by decreasing of NDVI values (maximum NDVI in 1990 was 0.70 and in 2016 it was 0.48). Considering all these issues, the present paper intends to identify dust vulnerable zones based on six major driving parameters and the impact of the dust on river morphology, water quality and vegetation quality in different vulnerable zones. Weighted linear combination method (in Arc Gis environment) is used for compositing the selected parameters and deriving vulnerable zones. Weight to the each parameter is assigned based on analytic hierarchy process, a semi quantitative method. According to the results, 579.64 km2(14.93%) of the catchment area is very highly vulnerable: Here 581 rivers have a length of 713 km and these riversare prone to high dust deposition, increased sediment load and water quality deterioration.

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