scholarly journals Spatial Differentiation of Water Quality Between Reservoirs Under Anthropogenic and Natural Factors Based on Statistical Approach

2014 ◽  
Vol 40 (1) ◽  
pp. 41-50 ◽  
Author(s):  
Hülya Boyacioglu
Keyword(s):  
Water Quality ◽  
Management Practices ◽  
Pollution Prevention ◽  
Organic Pollution ◽  
Temporal Variations ◽  
Trend Detection ◽  
Prevention Measures ◽  
Western Turkey ◽  
Natural Factors ◽  
Study Results

Abstract This study illustrates the benefits of statistical techniques to analyze spatial and temporal variations in water quality. In this scope water quality differentiation caused by anthropogenic and natural factors in the Tahtali and Balçova reservoirs in western Turkey was investigated using discriminant analysis-DA, Mann Whitney U techniques. Effectiveness of pollution prevention measures was analyzed by Mann Kendall and Sen’s Slope estimator methods. The water quality variables were divided into three groups as physical-inorganic, organic and inorganic pollution parameters for the study. Results showed that water quality between reservoirs was differentiated for “physical-inorganic” and “organic pollution” parameters. Degree of influence of water quality by urbanization was higher in the Tahtali reservoir and in general, no trend detection at pollution indicators explained by effective management practices at both sites.

scholarly journals 388 Extension Water Quality Training for the Nursery Industry

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 459F-460
Author(s):  
Michael A. Schnelle ◽  
Sharon L. von Broembsen ◽  
Michael D. Smolen
Keyword(s):  
Water Quality ◽  
Best Management Practices ◽  
Management Practices ◽  
Pollution Prevention ◽  
Cooperative Extension Service ◽  
Web Based ◽  
Agricultural Engineering ◽  
Best Management ◽  
Quality Video ◽  
Irrigation Runoff

A comprehensive educational program focusing on water quality protection was developed for the Oklahoma nursery industry. The program focused on best management practices to limit pesticides and nutrients in irrigation runoff and on capture and recycle technology as a pollution prevention strategy. Key professionals from the departments of entomology and plant pathology, biosystems and agricultural engineering, and horticulture formed a multidisciplinary team within the Oklahoma Cooperative Extension Service (OCES). During 1998, water quality workshops were conducted on-site throughout Oklahoma at leading nursery operations. These workshops were designed to highlight best management practices (BMPs) that were already in place as a foundation on which to implement additional BMPs with the assistance of the OCES team. Training workshops were augmented by written publications, by web-based information, and by videotape instruction. These provided for ongoing education beyond the formal grant period. The written materials included a water quality handbook for nurseries and a fact sheet on capturing and recycling irrigation runoff. The water quality handbook was also made available on the web and a website on disease management for nurseries using recycling irrigation was provided. The water quality video, highlighting successful growers, was designed to show aspects of both best management practices and capture and recycle technology. Results of these 3-year extension efforts will be discussed.

Pollution prevention and restoration in the golden horn of Istanbul

1998 ◽  
Vol 37 (8) ◽  
pp. 129-136 ◽  
Author(s):  
Bülent Inanç ◽  
Cumali Kinaci ◽  
Izzet Öztürk ◽  
Mehmet Faik Sevimli ◽  
Osman Arikan ◽  
...  
Keyword(s):  
Water Quality ◽  
Bottom Sediment ◽  
Industrial Wastewater ◽  
Pollution Prevention ◽  
Environmental Problems ◽  
Current Status ◽  
Prevention Measures ◽  
Organic Solids ◽  
Golden Horn

The pollution in the Golden Horn is one of the most important environmental problems of Istanbul. Alluvium carried by Alibey and Kagithane creeks, and domestic and industrial wastewater discharges are the major sources of the pollution. In the upstream, a part of 3 to 4 km long is almost completely filled with debris and organic solids. There is a high anaerobic activity in the sediment resulting in a heavy odor problem. Sea traffic is impossible since the depth of water is less than 10 cm at this part. A restoration feasibility project has been carried out for pollution prevention and evaluation of the restoration alternatives. For this purpose, first, characteristics of water quality and bottom sediment were determined. Second, pollution prevention measures and the alternatives for the dredging and disposal of the bottom sediment were evaluated. Istanbul Metropolitan Municipality has already started the dredging work by early 1997, and has completed the diversion of all domestic and industrial wastewater discharges out of the Golden Horn. This paper summarizes the studies for determining current status, evaluating the restoration alternatives, and also the progress of the on-going dredging work.

Spatial and temporal variations of water quality in an artificial urban river receiving WWTP effluent in South China

2015 ◽  
Vol 73 (6) ◽  
pp. 1243-1252 ◽  
Author(s):  
Di Zhang ◽  
Yi Tao ◽  
Xiaoning Liu ◽  
Kuiyu Zhou ◽  
Zhenghao Yuan ◽  
...  
Keyword(s):  
Water Quality ◽  
Reclaimed Water ◽  
Treatment Plant ◽  
Organic Pollution ◽  
Temporal Variations ◽  
Urban River ◽  
Spatial And Temporal Variations ◽  
Pollution Load ◽  
Nitrogen And Phosphorus ◽  
Wwtp Effluent

Urban wastewater treatment plant (WWTP) effluent as reclaimed water provides an alternative water resource for urban rivers and effluent will pose a significant influence on the water quality of rivers. The objective of this study was to investigate the spatial and temporal variations of water quality in XZ River, an artificial urban river in Shenzhen city, Guangdong Province, China, after receiving reclaimed water from WWTP effluent. The water samples were collected monthly at different sites of XZ River from April 2013 to September 2014. Multivariate statistical techniques and a box-plot were used to assess the variations of water quality and to identify the main pollution factor. The results showed the input of WWTP effluent could effectively increase dissolved oxygen, decrease turbidity, phosphorus load and organic pollution load of XZ River. However, total nitrogen and nitrate pollution loads were found to remain at higher levels after receiving reclaimed water, which might aggravate eutrophication status of XZ River. Organic pollution load exhibited the lowest value on the 750 m downstream of XZ River, while turbidity and nutrient load showed the lowest values on the 2,300 m downstream. There was a higher load of nitrogen and phosphorus pollution in the dry season and at the beginning of wet season.

Environmental reform of agricultural policy in 1990 and beyond: Consider the source

1989 ◽  
Vol 4 (3-4) ◽  
pp. 160-166
Author(s):  
Kenneth A. Cook
Keyword(s):  
Water Quality ◽  
Food Safety ◽  
Best Management Practices ◽  
Management Practices ◽  
Pollution Prevention ◽  
Crop Rotations ◽  
Source Reduction ◽  
Farm Bill ◽  
Stewardship Program ◽  
Environmental Reform

AbstractThe environment will be a major issue during the 1990 Farm Bill reauthorization, with environmental reform efforts directed toward strengthening the conservation provisions of the 1985 Farm Bill, and expanding into new areas of water quality and food safety. The process will differ from the 1985 Farm Bill environmental reform experience in several important ways. In 1990, the policy ideas under discussion are more sweeping, the issues are more complex and controversial scientific understanding is more ambiguous, technical capacity in the field is highly limited, and the farm policy environment is more volatile. Key environmental policy issues this year are the future size and purposes of the 1985 Conservation Reserve Program, and the strengthening of sodbuster, swampbuster and conservation compliance provisions enacted in 1985. Commodity program reforms that remove disincentives to crop rotations, and food safety issues will also top the environmental agenda. An Environmental Stewardship Program is proposed as a new approach to source reduction and pollution prevention. An ESP program might consist of 10–15 year contracts under which farmers are compensated to adopt environmentally sound practices such as crop rotations, reduced and more efficient use of agricultural chemicals, integrated pest management systems, and best management practices for water quality and food safety concerns.

Integrated watershed management efforts: case study from Melen Watershed experiencing interbasin water transfer

2013 ◽  
Vol 13 (5) ◽  
pp. 1272-1280 ◽  
Author(s):  
I. Ozturk ◽  
A. Erturk ◽  
A. Ekdal ◽  
M. Gurel ◽  
E. Cokgor ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Supply ◽  
Action Plan ◽  
Pollution Prevention ◽  
Water Transfer ◽  
Wastewater Management ◽  
Prevention Measures ◽  
Watershed Protection ◽  
Interbasin Water Transfer ◽  
The Government

Istanbul is a megacity with a population of over 13 million. Due to experienced droughts and population growth in the city, interbasin water transfer from Melen Watershed was considered as the most feasible alternative to supply water that can compensate for water demand in the future. This decision changed the beneficial use of the Melen Watershed from irrigation water supply to drinking water supply and necessitated extensive pollution prevention measures to comply with the new water quality requirements. A Watershed Protection Action Plan was developed for the sustainable management of Melen Watershed. The action plan included measures concerning wastewater management, diffuse pollution management, solid waste management and water quality monitoring. In this paper, proposed protection actions in the plan are provided together with the activities realized so far. In addition, the changes made by the authorities during implementation of the plan are presented. The proposed Watershed Protection Action Plan as approved by the government is one of the first examples in Turkey, where watershed-based planning of water resources is implemented instead of administrative boundary-based management.

scholarly journals Evaluation of nutrient retention in vegetated filter strips using the SWAT model

2017 ◽  
Vol 76 (10) ◽  
pp. 2742-2752 ◽  
Author(s):  
Alper Elçi
Keyword(s):  
Water Quality ◽  
Best Management Practices ◽  
Management Practices ◽  
Swat Model ◽  
Assessment Model ◽  
Septic Tank ◽  
Nutrient Loads ◽  
Western Turkey ◽  
Discharge Data ◽  
The Impact

Abstract Nutrient fluxes in stream basins need to be controlled to achieve good water quality status. In stream basins with intensive agricultural activities, nutrients predominantly come from diffuse sources. Therefore, best management practices (BMPs) are increasingly implemented to reduce nutrient input to streams. The objective of this study is to evaluate the impact of vegetated filter strip (VFS) application as an agricultural BMP. For this purpose, SWAT is chosen, a semi-distributed water quality assessment model that works at the watershed scale, and applied on the Nif stream basin, a small-sized basin in Western Turkey. The model is calibrated with an automated procedure against measured monthly discharge data. Nutrient loads for each sub-basin are estimated considering basin-wide data on chemical fertilizer and manure usage, population data for septic tank effluents and information about the land cover. Nutrient loads for 19 sub-basins are predicted on an annual basis. Average total nitrogen and total phosphorus loads are estimated as 47.85 t/yr and 13.36 t/yr for the entire basin. Results show that VFS application in one sub-basin offers limited retention of nutrients and that a selection of 20-m filter width is most effective from a cost–benefit perspective.

Talented Employees in Russian and Foreign Companies

2013 ◽  
pp. 147-156 ◽  
Author(s):  
M. Latukha ◽  
T. Tsukanova
Keyword(s):  
Management Practices ◽  
Management Practice ◽  
Talent Management ◽  
Foreign Companies ◽  
Study Results ◽  
Practice Development

The study investigates talent management practices in Russian and foreign companies. The inquiry of Russian and foreign companies (working in Russia) showed that perceived and dedicated talent management practices contribute to better companies performance. The study results can be used in talent management practice development.

Spatio-temporal Variations in Water Quality Parameter Trends in River Waters

2018 ◽  
Vol 69 (10) ◽  
pp. 2940-2952 ◽  
Author(s):  
Martina Zelenakova ◽  
Pavol Purcz ◽  
Radu Daniel Pintilii ◽  
Peter Blistan ◽  
Petr Hlustik ◽  
...  
Keyword(s):  
Water Quality ◽  
Chemical Oxygen Demand ◽  
Quality Indicators ◽  
Water Resource Management ◽  
Oxygen Demand ◽  
Temporal Variations ◽  
Water Quality Parameter ◽  
Agricultural Activity ◽  
Water Quality Indicators ◽  
Nitrite Nitrogen

Evaluating trends in water quality indicators is a crucial issue in integrated water resource management in any country. In this study eight chemical and physical water quality indicators were analysed in seven river profiles in the River Laborec in eastern Slovakia. The analysed water quality parameters were biochemical oxygen demand (BOD5), chemical oxygen demand (CODCr), pH, temperature (t), ammonium nitrogen (NH4+-N), nitrite nitrogen (NO2--N), nitrate nitrogen (NO3--N), and total phosphorus (TP). Data from the monitored indicators were provided by the Ko�ice branch of the Slovakian Water Management Company, over a period of 15 years from 1999 to 2013. Mann�Kendall non-parametric statistical test was used for the trend analysis. Biochemical and chemical oxygen demand, ammonium and nitrite nitrogen content exhibit decreasing trends in the River Laborec. Decreasing agricultural activity in the area has had a significant impact on the trends in these parameters. However, NO2--N was the significant parameter of water quality because it mostly exceeds the limit value set in Slovak legislation, Regulation No. 269/2010 Coll. In addition, water temperature revealed an increasing trend which could be caused by global increase in air temperature. These results indicate that human activity significantly impacts the water quality.

A Survey of Nursery Water Quality Best Management Practices

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 501e-502
Author(s):  
Cody J. White ◽  
Michael A. Schnelle ◽  
Gerrit W. Cuperus
Keyword(s):  
Water Quality ◽  
Best Management Practices ◽  
Management Practices ◽  
Cultural Practices ◽  
Plant Materials ◽  
Best Management ◽  
Employee Safety ◽  
Current Water ◽  
Management Approaches ◽  
Environmentally Sound

A survey was designed to assess high-risk areas with respect to environmental contamination, specifically how it relates to water quality. Oklahoma growers of all economic levels, retail and/or wholesale, were queried at their place of business for their current state of implementing best management practices (BMPs) and other strategic actions that could potentially affect current and future water quality standards. Specific areas such as the physical environment of the nursery, primary pesticides and fertilizers used, Integrated Pest Management (IPM) practices, and employee safety training were covered as well as other aspects germane to preserving and protecting current water quality and related environmental issues. More than 75 nurseries were surveyed and given the opportunity to participate in future training at Oklahoma State Univ. Results indicated that nurseries have not fully implemented many BMPs, but have adopted fundamental IPM approaches. The stage is set for the implementation of the next phase of expansion and refinement into ecologically based programs such as propagation and sale of low pesticide input plant materials, improved cultural practices, and the integration of environmentally sound management approaches. As an example, many growers are in the process of phasing out calendar-based pesticide application programs in favor of aesthetic and/or economic threshold-driven pesticide spray programs.

Applying the Soil Water Assessment Tool to 5th Canadian Division Support Base Gagetown

2014 ◽  
Vol 49 (4) ◽  
pp. 372-385
Author(s):  
Shawn Burdett ◽  
Michael Hulley ◽  
Andy Smith
Keyword(s):  
Water Quality ◽  
Soil Water ◽  
Land Management ◽  
Management Practices ◽  
Assessment Tool ◽  
Anthropogenic Activities ◽  
Quality Model ◽  
Sediment Yields ◽  
Soil Water Assessment Tool ◽  
Water Assessment

A hydrologic and water quality model is sought to establish an approach to land management decisions for a Canadian Army training base. Training areas are subjected to high levels of persistent activity creating unique land cover and land-use disturbances. Deforestation, complex road networks, off-road manoeuvres, and vehicle stream crossings are among major anthropogenic activities observed to affect these landscapes. Expanding, preserving and improving the quality of these areas to host training activities for future generations is critical to maintain operational effectiveness. Inclusive to this objective is minimizing resultant environmental degradation, principally in the form of hydrologic fluctuations, excess erosion, and sedimentation of aquatic environments. Application of the Soil Water Assessment Tool (SWAT) was assessed for its ability to simulate hydrologic and water quality conditions observed in military landscapes at 5th Canadian Division Support Base (5 CDSB) Gagetown, New Brunswick. Despite some limitations, this model adequately simulated three partial years of daily watershed outflow (NSE = 0.47–0.79, R2 = 0.50–0.88) and adequately predicted suspended sediment yields during the observation periods (%d = 6–47%) for one highly disturbed sub-watershed in Gagetown. Further development of this model may help guide decisions to develop or decommission training areas, guide land management practices and prioritize select landscape mitigation efforts.

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