الفهرس 
المقدمهيوجد فقط 14 صفحة متاحة للعرض العام
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المستخلص
Agriculture is considered the main first consumer of water. The
irrigation water requirements nearly about 95% of Egypt yearly Nile
water share and about 80% of Egyptian water source . Government of
Egypt has performed many programs, and special projects for horizontal
and vertical e .pansion to rise agricultural production, and producti vity and relies the economical de elopments. The essence of problem which
limit performing this programs and projects in agriculture sector that the
Egyptian waters resources is relatively rear. Above all, the exce sive use
of water by farmers in old lands that represent about 85% of total
irrigation practice . Irrigation improvement project (TIP) is one of those projects that the ministry of public work & water resources in cooperates with ministry of agriculture ha e performed to improve that practices. Improved
systems don by substitute the under ground pip line P.V.C.) or raised
concrete mesqa (I.Sec.) for ordinary one. This study aimed to economically evaluate the improved irrigation systems in Egypt, and specially test the theoretical hypothesis
that water use efficiency under traditional surface irrigation system with rdinary mesqa deviate from economical u e. All above, achieve study
goals that: l-Detecting the main irrigation systems in Egypt, and explain features of irrigation management systems project (I.M.S.), Egypt water use &
management project (E.W.V.P.), and rotation system improvement
project in Egypt, that engender the (lIP) national project.
2- Perform the comparative economical analyses between improved
irrigation systems and traditional one according to mesqa type and farm
location at it. 3-E timate some economical measures which reported about preferable of irrigation y tems. 4-1aunching the feasibility study for improved
discounted measures to estimate their profit as person point of view.
That means using the financial (not economical) evaluation technique.
Also, study used some methods for evaluation procedures as,
economical efficiency measures, analyses of variant method, economical
analyses of production function and financial evaluation technique.
Study depended mainly on raw data that collected from
stratified represented sample of fanners under both improved and
traditional irrigation systems and came out four parts, dealing with
theoretical and statistical issues related to research.
Part one, detect the main irrigation systems in Egypt like
sprinkler, DROP, and surface irrigation systems with a brief explanation of
their concepts, and focus the main issues, strategies and scale of
irrigation improvement project which col-LIdbe summarized as:
l-Improve main irrigation system by replacing water continues flow in
main canal instead of rotational sy tem.
2-Improve on farm irrigation system by using the raised concrete mesqa
(J.Sec.) or the under ground pipeline (p.V.C.)and all has one point lifting
pump at upper point of it.
3-setting up the irrigation advisory serves (LA.S.) to be one of the
ministry agencies.
4- forming the water use association (W.U.A.) to realize farmers
cooperation in operate and maintain mesqa, and also in water distribution
along users. 5- Improve peoples efficiency and skills especially ministry stuff.
Review of literature in Part two e plain that some few of
previous study related to the research was concerned about improved
irrigation systems economics .It is obviously that there is no study
perform the economical efficiency concepts, analysis of variance method,
or launch financial evaluation technique. So, this study perform analytical
methods above trying to economically evaluate improved irrigation
systems, and it could be a new entry for evaluate such project.
Part three concerned about sample and its character. Sur e_ of
farmers erved by El-Saidia canal, Sharkia governate reveals ubstantial
deviation of actual applied water quantity comparing with ration d limit.
Value of water deviation under (P.V.C.) mesqa was bigger than under
(lSec.) mesqa type .abo e all, water de iation value wa the biggest
under ordinary mesqa, and it estimated to be about half of actual applied
water quantity in vain.Part four introduce procedure of irrigation system evaluation using four deferent methods every one in a chapter. Chapter one discus’ the efficiency concepts and focus efficiency of using irrigation water.Result of data calculation show that the raised concrete mesqa (lSec.)
has a grate efficiency of water use-and high cost of lifting water unit. The
pipeline (P. V.C.) system prove its efficiency of using irrigation water,
decline water unit lifting cost and raise gross and net return of water unit
too. Chapter two launched the analyses of variance between irrigation
systems, and farm location along mesqa in three sections upper, middle,
and end tail. Data analyses manifest significant differences between
improved systems (lSec. & P.V.C.) and traditional one in average
irrigation cost, net return, and productivity of aria unit, also in water unit net return and actual applied water quantity.
Chapter three introduces production functions and analyses of its
parameters. Data formed into two-function type using multi regression
and stepwise technique. One function represents unit aria production
under different irrigation system and make a comparison using elasticity
and marginality concepts. Chapter four illustrates financial evaluation using discounted measures also current prices. Finally, sensitivity analyses of improved irrigation systems to make sure of project capability if market condition had been changed to be worse. Result show that both improved systems are visible to be applied but (lSec.) could be preferable than (P.V.C.)
irrigation system.Accounting all above, study could recommends that:
I-Acceleration in applying irrigation improvement national project step
by step with allowing continuous water flow in the main canal.
2-filling up the ordinary mesqa as an integral step for improving.
3-Govemment must develop a program to get back systems installation
costs.