Engineering and water management over time

2010 ◽  
pp. 3-26 ◽  
Author(s):  
Enrique Cabrera
Keyword(s):  
Water Management ◽  
Over Time

scholarly journals Perceptions of Irrigation Water Management Practices in the Mississippi Delta

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 186
Author(s):  
Carson Roberts ◽  
Drew M. Gholson ◽  
Nicolas Quintana-Ashwell ◽  
Gurpreet Kaur ◽  
Gurbir Singh ◽  
...  
Keyword(s):  
Water Management ◽  
Mississippi River ◽  
Irrigation Water ◽  
Management Practices ◽  
Mississippi Delta ◽  
Water Saving ◽  
Irrigation Water Management ◽  
Highly Efficient ◽  
Irrigation Technology ◽  
Over Time

The Mississippi River Valley Alluvial Aquifer (MRVAA) is being depleted, and practices that improve water stewardship have been developed to reduce drawdown. This study assesses how Mississippi Delta producers changed their perceptions of these practices over time. The analysis employs data from two surveys carried-out in 2012 and 2014 of all Mississippi permittees who held an agricultural well permit drawing from the MRVAA. Focusing on water-saving practices, this study found that producer perception of the usability of flowmeters improved over time. About 80% and 90% more producers growing corn and soybeans, respectively, felt that computerized hole selection was highly efficient. In 2014, 38% of corn and 35% of soybean producers believed that shortened furrow length was a highly efficient practice—up from 21% in corn and 24% in soybean producers in 2012. Approval of irrigation automation, moisture probes, and other irrigation technology rose from 75%of producers in 2012 to 88% by 2014. Favorability toward water-saving practices increased overall between the survey years.

scholarly journals The Multi-Pattern Approach for Systematic Analysis of Transition Pathways

2019 ◽  
Vol 11 (2) ◽  
pp. 318 ◽  
Author(s):  
Fjalar De Haan ◽  
Briony Rogers
Keyword(s):  
Water Management ◽  
Functional System ◽  
Systematic Analysis ◽  
Pattern Approach ◽  
Transition Pathways ◽  
Central Notion ◽  
Case Comparison ◽  
High Level ◽  
Over Time

Pathways have become a central notion in various areas of research, amongst which are the studies of transitions to sustainability. Though various typologies and concepts are available, a framework for systematic analysis of transition pathways is lacking. We present the Multi-Pattern Approach (MPA) to fill this lacuna and provide a step-by-step manual for its application. The MPA addresses a range of traditional challenges of transitions’ pathway analysis, such as temporal and functional system demarcation and the unravelling of complex, interrelated systemic storylines. The approach provides an oft-called for rigour which allows a diagrammatic and formulaic representation of transitions’ pathways. Because of these qualities, the approach allows systematic cross-case comparison and provides a bridge between narrative-based and computational transitions research. The approach is demonstrated with an in-depth empirical case study of water management in Melbourne, Australia over the last 180 years. The article first presents a high-level mapping of the system’s evolution over time and a detailed analysis of the uptake and phasing out of specific servicing technologies and practices.

scholarly journals The roles of capitals in building capacity to address urban flooding in the shift to a new water management approach

2017 ◽  
Vol 36 (6) ◽  
pp. 1068-1087 ◽  
Author(s):  
Ryan Plummer ◽  
Steven Renzetti ◽  
Ryan Bullock ◽  
Maria de Lourdes Melo Zurita ◽  
Julia Baird ◽  
...  
Keyword(s):  
Water Management ◽  
Natural Capital ◽  
Flood Management ◽  
Management Approach ◽  
Urban Flooding ◽  
Building Capacity ◽  
Control Structures ◽  
Social Capitals ◽  
Systems View ◽  
Over Time

Stresses on water resources are considerable and will intensify in the future due to climatic and non-climatic drivers. The emerging shift from science-based command and control ‘old’ water management approach to a dynamic and integrative systems view of water—a ‘new’ water management approach—was explored using the concept of capacity, operationalized using the livelihoods capitals approach (i.e. physical, natural, financial, human and social capitals), as a conceptual lens in a multiple case study of notable cases of urban flooding from Canada and Australia. The findings show that there are changing conceptualizations of capacity in both cases over time. Physical and financial capitals have been emphasized for decades and are associated with the old water management approach, responding to major flood events with the construction of large control structures. While the importance of these capital inputs persists, the approach to building capacity under the emergence of the new water management approach places an increasing relative emphasis on social and human capitals. The lack of emphasis on natural capital persisted over time and should be considered explicitly in flood management. This study demonstrates how the capitals approach contributes to the very much needed understanding of how the shift from the old to a new water management approach is being expressed for both present-day decisions and long-term trajectories.

DIVERSIFICATION OF THE LEVEL OF EXPENDITURES ON FIXED ASSETS FOR ENVIRONMENTAL PROTECTION AND WATER MANAGEMENT IN POLAND

2017 ◽  
Vol XIX (3) ◽  
pp. 161-167 ◽  
Author(s):  
Irena Kropsz-Wydra
Keyword(s):  
Water Management ◽  
Environmental Protection ◽  
National Economy ◽  
Regional Structure ◽  
Structure And Dynamics ◽  
Fixed Assets ◽  
Changes Over Time ◽  
Over Time

The aim of the study was to analyze changes and to assess the diversification of the level of investment expenditures on fixed assets used for environmental protection and water management in Poland. The study period covered the years 2002-2015. Regional structure and dynamics of changes in the level of investment expenditures were analyzed. In addition, the share of investment expenditures on environmental protection and water management in investment expenditures on the national economy was calculated. There was an overall increase in investment outlays on fixed assets for environmental protection and water management in Poland, as evidenced by the increasing dynamics of changes over time.

scholarly journals Rescuing Irrigated Desert Agriculture

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 550A-550
Author(s):  
Russell Clemings
Keyword(s):  
Water Management ◽  
Latin America ◽  
Side Effects ◽  
Fresh Produce ◽  
Green Revolution ◽  
Nile Valley ◽  
British India ◽  
Wetting And Drying ◽  
The Difference ◽  
Over Time

From its birth in British India in 1847, modern irrigated desert agriculture has grown in just more than a century to produce one-third of the world's crops. Until the techniques of civil engineering were wedded to the ancient art of irrigation on the plains of the Punjab, most crops were rain-fed, except in areas such as the Nile Valley, where reliable seasonal floods made irrigation practical. Today, in contrast, we have made the desert bloom, giving ourselves fresh produce yearround and making the difference between survival and starvation in much of the developing world. Without irrigation, it would not have been possible to farm the high-yielding seeds of the Green Revolution, which greatly reduced the threat of famine in Asia and Latin America. But now, after a century of heavy irrigation, serious side effects are beginning to appear. Soils are becoming salinized by the cycles of wetting and drying in an arid climate, and wildlife has been poisoned by toxic drainage pumped from beneath irrigated fields where it has built up over time. These side effects have caused some to predict that the bounty of modern desert agriculture may not be sustainable, but others see hope of reducing the side effects through vastly improved water management.

scholarly journals A History of the Settler-Colonial Freshwater Impure-Ment: Water Pollution and the Creation of Multiple Environmental Injustices Along the Waipaˉ River

2021 ◽  
pp. 181-234
Author(s):  
Meg Parsons ◽  
Karen Fisher ◽  
Roa Petra Crease
Keyword(s):  
Water Management ◽  
Water Pollution ◽  
Clean Water ◽  
Management Planning ◽  
Water Based ◽  
History Of ◽  
State Water ◽  
Planning Processes ◽  
Water Management Planning ◽  
Over Time

AbstractIn this chapter, we outline the history of water pollution in Aotearoa New Zealand’s Waipā River and its tributaries and demonstrate how environmental injustices can accumulate slowly over time. We highlight how Indigenous (Māori) and non-Indigenous (Pākehā) peoples held fundamentally different understandings of what constituted contaminated or clean water based on their different ontologies and epistemologies. We highlight how Māori people and their tikanga (laws) and mātauranga (knowledge) were excluded from settler-state water management planning processes for the majority of the twentieth century. Since 1991 new legislation (Resource Management Act) allows for Māori to participate in decision-making, however Māori values and knowledge continues to be marginalised, and Māori concerns about water pollution remain unaddressed. Accordingly, in the Waipā River environmental injustice continues to accumulate.

scholarly journals Assessing sectoral heterogeneity and leadership in urban water management networks

Water Policy ◽  
2020 ◽  
Vol 22 (5) ◽  
pp. 867-886
Author(s):  
Emily V. Bell ◽  
Adam Douglas Henry ◽  
Gary Pivo
Keyword(s):  
Water Management ◽  
Water Governance ◽  
Integrated System ◽  
Joint Implementation ◽  
Urban Systems ◽  
Urban Water ◽  
Urban Water Management ◽  
Non Profit ◽  
Policies And Programs ◽  
Over Time

Abstract Many urban systems worldwide face increasing complexity and uncertainty in water governance. As a result, integrated urban water management (IUWM) has become increasingly common. The IUWM paradigm conceptualizes water supply, conveyance, and treatment as an integrated system to improve water management efficiency and sustainability. This approach often presents new responsibilities that require coordinated efforts and leadership, but factors such as professional protocols, limited time, legal mandates, and budgetary constraints may limit joint implementation. To understand how policy stakeholders translate goals into action, we ask: How do sectoral affiliation of governance stakeholder organizations and leadership influence patterns of joint implementation of programs and policies over time? Using inferential social network analysis, this paper examines how coordination and leadership play a role in the implementation of IUWM. We find that the presence of leaders has a significant effect on joint implementation of integrated programs and policies over time. Counter to our expectations, however, organizations from the same sector (e.g., local government, non-profit, private, etc.) tend to implement IUWM policies and programs together.

A brief history of water filtration/sedimentation

2013 ◽  
Vol 13 (3) ◽  
pp. 735-742 ◽  
Author(s):  
Larry W. Mays
Keyword(s):  
Water Management ◽  
20Th Century ◽  
19Th Century ◽  
Potable Water ◽  
Pure Water ◽  
Water Filtration ◽  
History Of ◽  
Ancient Times ◽  
The 19Th Century ◽  
Over Time

For millennia the search for ‘pure’ water has been pursued by humans. Criteria for purity have become more complex, more rigid, and more quantitative over time; however, the principles, methods, and material for purifying water have remained remarkably similar from the earliest recorded information of 2000 BC. The scope of this paper is to present a brief history of water filtration and sedimentation practices for potable water management extending from the ancient times to the 19th century. It is not an exhaustive presentation, but instead presents some of the most important advances in water supply since the beginning of human's quest for pure water. M. N. Baker and M. J. Taras in 1981 presented an excellent overview of this quest, especially during the 17th to the 20th century.

scholarly journals Evaluasi Kinerja Tampungan Waduk Selorejo Menggunakan Perangkat Lunak HEC-HMS

2021 ◽  
Vol 21 (01) ◽  
pp. 11-20
Author(s):  
Christian Cahyono ◽  
Dhanny Susetyo ◽  
Henny Herawati ◽  
Juliastuti
Keyword(s):  
Water Management ◽  
Water Level ◽  
River Water ◽  
Return Period ◽  
Management Problem ◽  
Initial Water ◽  
Reservoir Storage ◽  
Flood Discharge ◽  
Probable Maximum Flood ◽  
Over Time

[ID] Permasalahan banjir merupakan permasalahan pengelolaan air yang sering terjadi di Indonesia. Untuk mengatasi permasalahan tersebut dibuat sebuah struktur yaitu waduk yang berfungsi sebagai pengendali banjir. Namun seiring waktu tampungan waduk akan semakin menurun akibat adanya akumulasi sedimen yang terbawa oleh air sungai yang masuk ke dalam waduk dan mengendap. Sehingga diperlukan evaluasi kinerja tampungan waduk tersebut, Permasalahan ini juga dialami oleh Waduk Selorejo yang terletak di Kabupaten Malang. Untuk melakukan evaluasi kinerja tampungan waduk digunakan bantuan perangkat lunak HEC-HMS yang dapat mensimulasikan debit banjir yang masuk beserta elevasi tampungan waduk. Berdasarkan hasil analisis tampungan Waduk Selorejo mampu untuk mengendalikan banjir periode ulang desain awal nya yaitu periode ulang 1000 tahun. Selain itu Waduk Selorejo juga mampu menampung debit banjir Probable Maximum Flood (PMF) apabila muka air awal waduk diturunkan sampai elevasi +605 m. [EN] Flood problem is a water management problem that often occurs in Indonesia. To overcome this problem, a structure is created, namely DAM that functions as a flood controller. However, over time the reservoir storage will decrease due to the accumulation of sediment carried by river water that enters the reservoir. So it is necessary to evaluate the performance of the Rervoir storage. This problem is also experienced by the Selorejo DAM which is located in Malang Regency. To evaluate the performance of the reservoir storage, the help of HEC-HMS software is used which can simulate the incoming flood discharge along with the elevation of the reservoir. Based on the analysis, the Selorejo DAM is able to control the flood of  its initial design period which is the 1000-year return period. In addition, the Selorejo Reservoir is also able to accommodate the Probable Maximum Flood (PMF) flood discharge if the initial water level of the reservoir is lowered to an elevation of +605 m.

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