Building Back Better Domestic and Irrigation Water Supply Systems in the Aftermath of Tropical Cyclone Idai

Author(s):  
Godwell Nhamo ◽  
David Chikodzi
2009 ◽  
Vol 58 (1) ◽  
pp. 50-60 ◽  
Author(s):  
Gideon Sinai ◽  
Ben-Zion Dalins ◽  
Daniel Cohen ◽  
Uri Shamir

2006 ◽  
Vol 55 (5) ◽  
pp. 367-381 ◽  
Author(s):  
I. Pulido-Calvo ◽  
J. C. Gutiérrez-Estrada ◽  
R. López-Luque ◽  
J. Roldán

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Do Guen Yoo ◽  
Ho Min Lee ◽  
Ali Sadollah ◽  
Joong Hoon Kim

Water supply systems are mainly classified into branched and looped network systems. The main difference between these two systems is that, in a branched network system, the flow within each pipe is a known value, whereas in a looped network system, the flow in each pipe is considered an unknown value. Therefore, an analysis of a looped network system is a more complex task. This study aims to develop a technique for estimating the optimal pipe diameter for a looped agricultural irrigation water supply system using a harmony search algorithm, which is an optimization technique. This study mainly serves two purposes. The first is to develop an algorithm and a program for estimating a cost-effective pipe diameter for agricultural irrigation water supply systems using optimization techniques. The second is to validate the developed program by applying the proposed optimized cost-effective pipe diameter to an actual study region (Saemangeum project area, zone 6). The results suggest that the optimal design program, which applies an optimization theory and enhances user convenience, can be effectively applied for the real systems of a looped agricultural irrigation water supply.


2020 ◽  
pp. 1-24
Author(s):  
Ruggiero Sardaro ◽  
Piermichele La Sala

Apulia has a considerable demand of irrigation water, however high inefficiency levels of the collective water networks force most of the regional farms to use groundwater, with a consequent worsening of its quality, as well as of soil and crops characteristics. Therefore, the use of sustainable supply methodsfor irrigation water is desirable both through improvements of the collective networks and by appropriate economic tools.However, making the correct choices in these matters requires knowledge concerning the effects of the present water supply systems on the economic performance of farms.The objective of this study is to measure and compare the technical efficiency of winegrowing farms in northern Apulia that use different supply systems for irrigation water: groundwater from private wells, irrigation water from collective networks, and irrigation water from both private wells and collective networks. The results enable to understand if and how different supply systems of irrigation water affect the management of productive factors and inputs. These findings also provide useful information for appropriate policies aimed at preserving groundwater and its externalities, as well as at improving the economic performance of Apulian farms.


Sign in / Sign up

Export Citation Format

Share Document