scholarly journals Identifying effective reservoir capacity, water supply, inflow for tradeoff between human and ecological demand

2018 ◽  
Vol 246 ◽  
pp. 01034
Author(s):  
He Shan ◽  
Yin Xin’an ◽  
Zhifeng Yang
Keyword(s):  
Water Supply ◽  
Flow Regime ◽  
Management Strategy ◽  
Management Strategies ◽  
Social Benefit ◽  
Environmental Flow ◽  
Reservoir Capacity ◽  
Flow Management ◽  
Ecological Flow ◽  
Reservoir Inflow

To protect the river ecosystem and sustain ecological flow regime, it’s vital to consider environmental flow management in reservoir operation. Many researches try to use more detailed environmental flow management strategies to improve ecological flow regime. However, ecological flow regime not only is influenced by environmental flow management strategy, but also by three kinds of parameters, including reservoir capacity, reservoir inflow and water supply yield. The aim of this paper is to illustrate how ecological flow regime is affected by different reservoir capacities, reservoir inflows and water supply yields and to find a proper reservoir capacity, reservoir inflow or water supply yield under which the optimal ecological flow regime is the best and could not be improved. In this paper, an environmental flow management strategy, which is Four-period release approach (FP), is developed. Besides, social benefit and ecosystem needs are satisfied simultaneously. The results show that changing reservoir capacity, reservoir inflow or water supply yield could improve ecological flow regime.

scholarly journals Exploration of Cash Flow Management for Enterprise’s Business Performance

2021 ◽  
pp. 97-105
Author(s):  
Emmanuel Makoji Egwu ◽  
Fausat Ibidunni Orugun ◽  
Abosede Adelakun
Keyword(s):  
Cash Flow ◽  
Management Strategy ◽  
Business Performance ◽  
Management Strategies ◽  
Flow Management ◽  
Policy Makers ◽  
Cash Flow Management ◽  
Financial Obligations ◽  
Improved Performance ◽  
Descriptive Method

The study explored cash flow management for enterprise’s business performance. The study specifically investigated SMEs’ fulfilment of financial obligations through cash flow management, and determines the influence of cash flow management strategy on their performance in FCT Abuja. Survey research design was used. Data were gathered and analysed using the descriptive method and regression analysis. Findings showed that cash flow management influences the fulfilment of financial obligations, and that cash flow management strategies influence the performance of enterprises in Abuja. The study concluded that cash flow is critical to the success of enterprises. The study recommended that owners and managers of enterprises in Abuja should improve on their cash flow management, and that policy makers should incorporate strategy in management of cash flow framework to enhance improved performance.

scholarly journals Challenges to Implementing an Environmental Flow Regime in the Luvuvhu River Catchment, South Africa

2019 ◽  
Vol 16 (19) ◽  
pp. 3694 ◽  
Author(s):  
Pfananani Ramulifho ◽  
Esther Ndou ◽  
Reuben Thifhulufhelwi ◽  
Tatenda Dalu
Keyword(s):  
South Africa ◽  
Flow Regime ◽  
Stream Flow ◽  
Literature Search ◽  
Management Strategies ◽  
Environmental Flow ◽  
Catchment Management ◽  
Natural Ecosystem ◽  
River Catchment ◽  
Water Abstraction

Rivers are now facing increasing pressure and demand to provide water directly for drinking, farming and supporting industries as a result of rapidly growing global human population. Globally, the most common practice for catchment managers is to limit water abstraction and changes to stream flow by setting environmental flow standards that guard and maintain the natural ecosystem characteristics. Since the development of the environmental flow concept and methods in South Africa, very few studies have assessed the institutional constraints towards environmental flow implementation. This study determined stream flow trends over time by fitting simple linear regression model to mean daily stream flow data at three selected stations in the Luvuvhu River Catchment (LRC). We also conducted a literature search to review, firstly the response of aquatic organisms (fish and macroinvertebrate) to changes in habitat conditions and secondly on local challenges affecting the sustainable implementation of environmental flow regime and related water resources management strategies. All the three stream flow stations show decreasing stream flow volume of 1 and 2 orders of magnitude faster in some stations with the possibility that flow will cease in the near future. Qualitative analyses from both local and international literature search found that the main challenges facing the implementation of sustainable flow strategies and management are absence of catchment management agency, lack of understanding of environmental flow benefits, limited financial budget, lack of capacity and conflict of interest. Rivers with changing stream flows tend to lose sensitive species. The development of scientifically credible catchment-wide environmental flow and abstraction thresholds for rivers within the LRC would make a major contribution in minimizing the declining stream flow volumes. Monitoring and reporting should be prioritized to give regular accounts of the state of our rivers.

HYDROGEOMORPHIC CLASSIFICATION OF WASHINGTON STATE RIVERS TO SUPPORT EMERGING ENVIRONMENTAL FLOW MANAGEMENT STRATEGIES

2011 ◽  
Vol 28 (9) ◽  
pp. 1340-1358 ◽  
Author(s):  
C. A. Reidy Liermann ◽  
J. D. Olden ◽  
T. J. Beechie ◽  
M. J. Kennard ◽  
P. B. Skidmore ◽  
...  
Keyword(s):  
Management Strategies ◽  
Environmental Flow ◽  
Washington State ◽  
Flow Management ◽  
Hydrogeomorphic Classification

Wastewater management strategies for the black sea coast of Turkey

1999 ◽  
Vol 39 (8) ◽  
pp. 169-176
Author(s):  
I. Ozturk ◽  
E. Yuksel ◽  
A. Tanik
Keyword(s):  
Black Sea ◽  
Management Strategy ◽  
Population Distribution ◽  
Management Strategies ◽  
The Black Sea ◽  
Wastewater Management ◽  
Black Sea Coast ◽  
The Cost ◽  
Solid Waste Landfills ◽  
Sea Coast

The Black Sea, surrounded by six riparian countries, is under the threat of severe pollution, giving rise to the need of taking precautions to protect it from further deterioration. In this paper, an effort putting forth a wastewater treatment and management strategy is outlined for the Black Sea coast of Turkey, including both the technical and financial aspects. The present situation of the coast in terms of land-based pollution and infrastructure is stated, followed by an applicable management strategy. The strategy developed for the coastal settlements involves various stagewise treatment schemes based on population distribution and densities along the coastline, and on the availability of land in a specified period of thirty years. Similar strategies are proposed for the control of pollution originating from industries, for those carried by rivers joining the sea, and for leachate of solid waste landfills. The cost estimations of various treatment schemes are also given in terms of population equivalents.

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