scholarly journals Water use practices, water quality, and households’ diarrheal encounters in communities along the Boro-Thamalakane-Boteti river system, Northern Botswana

2015 ◽  
Vol 33 (1) ◽  
Author(s):  
G. Tubatsi ◽  
M. C. Bonyongo ◽  
M. Gondwe
Keyword(s):  
Water Quality ◽  
Water Use ◽  
River System ◽  
Water Use Practices

scholarly journals Hydrologic Study of Jewel Cave/Wind Cave

1987 ◽  
Vol 11 ◽  
pp. 133-140
Author(s):  
E. Alexander, Jr. ◽  
Marsha Davis
Keyword(s):  
Water Quality ◽  
Human Impact ◽  
Water Use ◽  
Water Distribution ◽  
Cave Environment ◽  
Hydrologic System ◽  
Water Use Practices

The hydrologic study at Wind and Jewel Caves has the following Objectives: 1) to evaluate the water distribution within these two park areas; 2) to determine the effects of human impact upon the natural hydrologic system; 3) to document any detrimental effects to the water quality; 4) to document any instances in which the cave environment is adversely affected by the quality or quantity of the water present; and 5) to suggest options to change present water use practices, if necessary.

scholarly journals Hydrologic Study of Jewel and Wind Cave

1985 ◽  
Vol 9 ◽  
pp. 130-135
Author(s):  
E. Alexander, Jr. ◽  
Marsha Davis
Keyword(s):  
Water Quality ◽  
Human Impact ◽  
Water Use ◽  
Water Distribution ◽  
Cave Environment ◽  
Hydrologic System ◽  
Water Use Practices

The research underway has the following objectives: 1. Evaluate the water distribution within these two park areas; 2. Determine the effects of human impact upon the natural hydrologic system; 3. Document any detrimental effects to the water quality; 4. Document any instances in which the cave environment is adversely affected by the quality or quantity of the water present; and 5. Provide options to present water use practices, if necessary.

scholarly journals Management of Fertilizers and Water for Ornamental Plants in Urban Landscapes: Current Practices and Impacts on Water Resources in Florida

2010 ◽  
Vol 20 (1) ◽  
pp. 94-106 ◽  
Author(s):  
Amy L. Shober ◽  
Geoffrey C. Denny ◽  
Timothy K. Broschat
Keyword(s):  
Water Quality ◽  
Water Use ◽  
Ornamental Plants ◽  
Urban Landscapes ◽  
Rapid Population Growth ◽  
Water Shortages ◽  
Quality Degradation ◽  
Landscape Plants ◽  
Critical Issues ◽  
Water Use Practices

Rapid population growth and urbanization in Florida have increased the number of urban landscapes that receive fertilization and irrigation. Consequently, maintenance of these landscapes may contribute to water shortages and water quality degradation. This article 1) describes the current fertilizer and water use practices that are used by homeowners and landscape professionals; 2) summarizes the research related to nutrient and water use by landscape plants; and 3) provides an overview of the critical issues that should be considered as we evaluate the need for improved management of water and nutrients in urban landscapes.

scholarly journals Effects of Weir Construction on Phytoplankton Assemblages and Water Quality in a Large River System

2018 ◽  
Vol 15 (11) ◽  
pp. 2348 ◽  
Author(s):  
Hae-Jin Lee ◽  
Hae-Kyung Park ◽  
Se-Uk Cheon
Keyword(s):  
Water Quality ◽  
Chlorophyll A ◽  
River System ◽  
Large River ◽  
Anthropogenic Factors ◽  
Centric Diatom ◽  
Nakdong River ◽  
Biological Variables ◽  
Physical Chemical ◽  
The Nakdong River

Flow regulation is one of the most common anthropogenic factors affecting rivers worldwide. In Korea, 16 weirs were constructed along four major rivers from 2009 to 2012. This study aimed to elucidate initial changes in physical, chemical, and biological variables after the construction of consecutive weirs on the Nakdong River, a major large river system. Water quality variables and phytoplankton cell densities were investigated at eight representative sites and compared with the data recorded before the weir construction. There were spatial and temporal changes in the hydraulic retention time (HRT), total phosphorus (TP), and chlorophyll a concentrations among the eight weir sections. HRT increased after the weir construction, while TP and chlorophyll a tended to decrease from the middle to lower section of the Nakdong River. Furthermore, differences were observed in the phytoplankton community composition between 2006–2007 and 2013. There was a marginal decrease in the duration of centric diatom (Stephanodiscus hantzschii) blooms after weir construction. However, Microcystis aeruginosa proliferated more extensively during summer and autumn than it did before the weir construction. Our results suggest that changes in hydrological factors, in response to consecutive weir construction, may contribute to greater physical, chemical, and ecological variability.

Wetland Effects on Hydrological and Water Quality Characteristics of a Mid-Michigan River System

2018 ◽  
pp. 273-285
Author(s):  
T. M. Tompkins ◽  
W. W. Whipps ◽  
L. J. Manor ◽  
M. J. Wiley ◽  
C. W. Radcliffe ◽  
...  
Keyword(s):  
Water Quality ◽  
River System ◽  
Quality Characteristics

scholarly journals Blending Satellite Data to Monitor Agricultural Water Use

Eos ◽  
2017 ◽  
Author(s):  
Terri Cook
Keyword(s):  
Water Quality ◽  
Water Use ◽  
Satellite Data ◽  
New Technique ◽  
Agricultural Water ◽  
Agricultural Water Use ◽  
Improve Water Quality ◽  
A New Technique ◽  
Quality Assessments

A new technique that merges data gathered by multiple satellites can be used to monitor agricultural water use and improve water quality assessments around the globe.

scholarly journals Modelling the hydrology and water quality of 3S river system (Sekong, Sesan and Srepok)

2016 ◽  
Vol 19 (2) ◽  
pp. 107-117
Author(s):  
Trang Thi Thuy Nguyen ◽  
Khoi Nguyen Dao
Keyword(s):  
Water Quality ◽  
Swat Model ◽  
Model Performance ◽  
River System ◽  
Water Quality Assessment ◽  
River Basin Management ◽  
Analysis Tool ◽  
Nitrogen And Phosphorus ◽  
Model Soil

The objective of this study was to simulate the hydrologic characteristic and water quality of 3S rivers system (Sekong, Sesan and Srepok) using SWAT model (Soil and Water Analysis Tool). Agriculture and forest are the main land use types in this basin accounting for more than 80 % of the total area. Therfore, nitrogen and phosphorus were selected to be parameters for water quality assessment. SWAT-CUP model was applied to calibrate the model for stream flow and water quality based on SUFI-2 (Sequential Uncertainty Fitting version 2) method. The model performance has been assessed by three statistical indices, including coefficient corellation (R2), Nash-Sutcliffe efficient coefficience (NSE) and percentage Bias (PBIAS). The results showed that SWAT model was well calibrated for simulating the streamflow and water quality with the values of R2 greater than 0.5 except for the Attapeu and Kontum stations, and of PBIAS less than 10 % and 35 % for streamflow and water quality, respectively. The well-calibrated SWAT model can be applied in predicting the hydrology and water quality for other application. Furthermore, it is a tool supporting the policy makers to offer a suitable decisions regarding the sustainable river basin management.

scholarly journals Water Use Special Features under the Water Resources Scarcity Conditions (the Ishim River as a Study Case)

2015 ◽  
pp. 4-19
Author(s):  
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Water Use ◽  
Water Consumption ◽  
Anthropogenic Impact ◽  
General Trend ◽  
Volume Reduction ◽  
Transboundary Basin ◽  
Study Case ◽  
Water Quality Deterioration

Special features of water use within the boundaries of the Ishim River transboundary basin (an area with very scanty water resources) have been analyzed. In spite of the general trend of water consumption volume reduction the water quality deterioration has been found in the basin. The degree of anthropogenic impact upon water resources have been assessed on the basis of direct and indirect indicators.

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