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Register a new userEffect of irrigation method on the transfer of polluting elements in soil to groundwater
تأثير طريقة الري على انتقال العناصر الملوثة في التربة إلى المياه الجوفية
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Aِl-Baath University ورقة بحثية
Publication date
2017
fields
Civil Engineering
and research's language is
العربية
Authors
ربا علي الاحمد( باحث )
Created by
Shamra Editor
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إن الغاية من هذا البحث هو تطبيق برنامج رياضي لمعادلة التوازن المائي و الكيميائي في تربة غير مشبعة، تحت تأثير طرق مختلفة للري ، من أجل مراقبة كمية الصرف الشاقولي للمياه داخل التربة ، و اختيار طريقة ري تستطيع الحد من ظاهرة تلوث المياه الجوفية. تم استخدام ثلاث طرق هي ( ري بالراحة و نوعان من الري بالرش ) ، من أجل كل طريقة تسميد معطاة، حيث أجريت الدراسة في القسم الغربي من محافظة حمص (بساتين القصير).
The purpose of this research is to apply a mathematical program to calculate water and chemical balance in unsaturated soils, under the influence of different methods of irrigation, in order to monitor the amount of vertical drainage of water inside the soil and choose a irrigation method that can reduce the phenomenon of groundwater pollution. Three irrigation methods were tested with different fertilization method. The study was conducted in the western part of Homs Governorate (AlQusair orchards).
References used
(CABIBLE, B,1987-Estimation des comportements hydriques et des fluxed seve dans des pommiers en irrigation localisee sur sol fissure. Journees helleniques de l,hydraulique, journees nationales de l,hydrotechnique(GRS
CREAMS,0202 -A field scale model for chemicals ,Runoff and Erosion from agricultural management systems USDA USA
Ahmed,A,2010- Book of physical and chemical pollution of the aquatic environment, Library Scientific House , Cairo
rate research
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Biological Denitrification process in anoxic fluidized bed reactor is a simple
way to eliminate nitrate – nitrogen that pollute the groundwater.
In this method the biofilm (including organic bacteria) was cultured on the
reactor bed particles, whi
ch we chose granular activated carbon (1-3) mm.
The raw water containing Nitrate ions and bacteria nutrients was pumped
into the bottom of the reactor in an adequate velocity to fluidize the bed
particles holding the biofilm.
Ethanol and DeHydrogenated Sodium ortho phosphate was chosen as
bacteria nutrients, Ethanol as carbonic nutrient and DeHydrogenated
Sodium ortho phosphate as phosphoric nutrient.
The experiment carried out to improve the efficiency of drip
irrigation system , based on soil moisture. The indirect measure of
humidity Was used in the experiment, connected with the pointing
device (separator continued), and a control device pr
ogrammed on a
low humidity degree, which is degree the field capacity of the soil and
which value is 25%, and on a high moisture degree which is saturation degree
at 75%..
This research aims at evaluating the effect of fire on the erosion of burned forest soils
after rainfall. The research was carried out during (2010/2011) in a pine forest near the
village of Ein Al-Jaouz at an altitude of 900m, north east Tartous g
overnorate. The forest
had a fire in October 2009.
Ten metal plots (2m2 each plot) were used to evaluate soil erosion, five plots in the
burned part of the forest and another five plots in the unburned part.
The runoff coefficient, soil erosion rate, soil pH and rate of some mineral elements
(Ca++, K+ , Mg++) were estimated and compared in the two parts.
This study showed that the runoff coefficient was three times as great on the burned
part as on the unburned part, and the rate of soil erosion was 7.22 Mg/ha in the burned part
and 0.1Mg/ha in the unburned part. This shows the impact of fire in increasing soil erosion
and runoff. This study also showed the difference in cation concentrations in the runoff
water between the two parts.
The study reveals the importance of protecting forests against fire. This is to limit
soil erosion and its economic and environmental consequences.
This experiment was conducted during ١٩٩٦-١٩٩٨ to ivestigate study the
effect of using different types of irrigation water on some soil properties and its
cotton, corn and wheat productivity under the agroclimatic conditions of Deir
Ezzor.
A large fraction of radiation exposure experienced by individuals through
ingestion of food, is from natural occurring radionuclides such as K40. In order
to find the environmental radioactive background of K40 in Ninevah, Iraq,
governorate and it
s transfer factor from soil to plant and then the effective dose
equivalent from milk ingestion, the concentrations of K40 were measured in soil
, plant and milk collected from 41 agricultural fields in Ninevah governorate in
May/ June 2001.
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