This research aims to conduct a descriptive and econometric
analysis of the costs functions of rain fed barley in the first, second and
third stabilization zones in Al - Hasakah governorate, and to determine
the optimum sizes for production and th
e profit-maximizing size. Data
were collected through a questionnaire for rain fed barley farmers in the
study area for the average season (2015 / 2016-2016 / 2017).
The research aims to study the effects of the climatic elements, rain, dry heat and drought on
wheat and barley production (irrigated and rain-fed) in al-Hasakah station in the Eastern Province,
In order to achieve the objectives of the research a
series of pen'ds of time extending from 2001 to
2010, was adopted Based on the indexes, rates growth and multiple regression the most important
results were as the Following, relation:
1- There is a very strong and statistically significant between the irrigated wheat production
and rainfall, dry heat and drought index, wch was the most influential, effed followed by
precipitation drought index, and by dry heat.
2- There is no statistically significant relationship between rain-Fed wheat production and
rainfall dry heat or drought index.
3- There is a strong and statistically significant relationship between the production of
irrigated barley and rainfall, dry heat and drought index, The most influential effed was drought
index, followed by dry heat, and precipitation.
4- There is no statistically significant relationship between the production of rain-Fed barley
and rainfall and dry heat or drought index.
The study aimedtoalertthe danger oferosionare three types ofsoilsexposedby
calculatingthe amount ofsoilerodedfromthe impact ofthe
Cascadefiverainstormsequalintensity, thosesoils, has been securedsoilsnecessaryfor the
studyofseveral areas ofdiffere
nt provincesin Syria, where he wasplaced in thebasin,
thenoffered forrainstormsbymobile(Rainfall Simulation),andaftereveryrainstormwas
recordedreadingsfor the loss ofsoilfromeachbasinrunoffandinfiltration.
The results of thisstudy showedthe effectin terms oftexturesin thedrift,
themoremechanicalgroupsdriftingin the threesoilsareprimarilysiltgroup, followed by the
mudpack, thensand, and clay soilswith ahigh percentageofsiltmosterosionofclay soilswith
alowpercentageofsilt, followed bysandyclayloamsoils, wherethe amount ofsoillostfromthe
clay soilreachedwith a high contentofsilt147.7t/ h/y, andthe lowclaycontentofsilt118.5t/
h/y, while the soilwithtexturesLummisandyclay, reaching 90.5t / h/y.And soil erosion that
attaches primarily by college carbonates then dispersion ratio of organic matter and then
finally percentage silt.
Raising number of researches dealt with precipitation properties especially after the recent advances in measurement techniques and devices. It is becoming essential to reach a common understanding of rain event when addressing the relation of rain p
roperties with different climate patterns and its influence on variety of human activities. The aim of this research is to present a suitable rain event definition that would serve future research in this field. Data was acquired in Freising south of Germany in the summer of 2009. Four event definitions were generated then compared according to rain properties obtained by the disdrometer and the rain gauge, These properties included event count per definition, mean event duration, mean event rain intensity, mean event rain amount, total rain amount and total number of drops. One definition proved to be more suitable than the others exploiting the disdrometer precession.
The research aimed to estimate the total cost, medium and marginal
cost, volumes and economic optimization production of rain feed lentil in the
first zone of Aleppo governorate using econometric models. Linear regression
analysis of a single equa
tion was applied to explain the relationship between
amount of production as an independent variable and the value of production
costs as the dependent variable.
Because rainfall in the coastal area is high and water projects are nearly missing, we think it is important to make use of available water resources. In order to predict future rainfalls and suggest proper management of resources, we created a mathe
matical model linking rainfall amounts between demand (population, agricultural and industrial) on water resources during the period (2000-2012). Results show the following:
1. Rainfalls decreased during the period ( 2002-2012) at an annual rate of (1.84%).
2. Demand on water resources increased during the period (2002-2012) at an annual rate of (3.41%) of the population demand, and (3.47 %) of the agricultural demand, and 6.25% for industrial demand.
3. There is a surplus of available water resources and the size of demand for them, with the surplus decreasing during the period (2002-2012) at an annual rate (2.97 %).
4. The estimation of the surplus between the amount of available water resources and the size of the demand for them will decrease in 2023 from what it was like in the year 2013 at an annual rate (-3.23%).
The main objective of this study was to describe economic and econometric
analysis of cost functions of rain-feed barley production in the northern region
from Syria and determine the economically efficient size and the profitmaximizing
size, Prim
ary data collected in (2010) through research interviews
with farmers were used. Farms in the rainfed areas in. the northern region
were divided according to stabilization zones (1, 2, 3 and 4), Through the
descriptive economic analysis of costs of production of Farms in the rainfed
areas in the northern region were divided according to stabilization zones (1, 2,
3 and 4), Through the descriptive economic analysis of costs of production of
Barley, it was shown that the highest average cost of production of one dunum
in the northern region was 1859.3 sp. in zone (1) and the lowest average cost of
production of one dunum was 1694.5 sp. in zone (4), From the analysis of costs
and returns, the results indicated that the highest net return (profit) in the
northern region was 650.43 sp./dunum in zone (1), and the lowest net return
(profit) was 395.2 sp./dunum. in zone (3) Also, the results of the descriptive
economic analysis indicated that the lowest average cost of production of 1 kg
of barley was 8.3 sp. in zone (1 and 2), and the highest average cost of
production of 1 kg of oil was 9.3 sp. in zone (4), Using the econometric models
of cost functions, the economically efficient size and the profit-maximizing size
were computed and determined for each zone, indicating that farmers'
practices were too far from these sizes based on the econometric analysis;
namely the economically efficient size and the profit-maximizing size. Also the
results indicated that the economically efficient acreage size was 35.8 dunum in
zone (4), which was less than the actual area of this region.
The aim of this research is to determine the infiltration values as a basic
hydrogeological factor , which expresses the recharge of the ground water in a
group of wells in the studied area . In order to include a general introduction ,
the geolog
y and hydrogeology of the area and the explanation of the methods
have been used to calculate infiltration and evaporation values . Finally the
obtained results.
