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Register a new userتأثير المجارير في الخصائص الفيزيائية الكيميائية و البيوكيميائية و التلوث البكتيري في مياه نهر الكبير الشمالي
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Damascus University ورقة بحثية
Publication date
1999
fields
Biology
and research's language is
العربية
Authors
أسمهان زينب( باحث )
Created by
Shamra Editor
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استمرت هذه الدراسة عامًا كاملا قمنا خلالها بإجراء بعض القياسات الفيزيائية الكيميائية و البيوكيميائية للمياه بالإضافة إلى تعداد البكتيريا متباينة التغذية، الكوليفورم الكلية، الكوليفورم البرازية (الايشرشيا كولي)، المكورات المعوية لموقعين على نهر الكبير الشمالي مع مصبه و بحيرة سد ١٦ تشرين.
No English abstract
References used
مديرية الأحواض المائية، ١٩٧٩ . التحريات والدراسات الهيدروجيولوجية والهيدرولوجية في أربع مناطق في الجمهورية العربية السورية، مديرية الري العامة لحوض الساحل، الجمهورية العربية السورية.
زينب، أسمهان وكبيبو، عيسى، ١٩٩٦ . دراسة ميكروبيولوجية وتحليلية لعدد من مصادر مياه الشرب والمسطحات المائية في محافظة اللاذقية، اطروحة ماجستير، كلية العلوم، جامعة تشرين.
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This study was conducted to determine the chemical and physical analysis of
two important water sources in the coastal erea, namely: Northern Elkabeer
river and Balloran Dam. The study took a year and a half starting from June
١٩٩٩.
The temperatu
re the cations and the anions were periodically
determined in three sites selected along the river bed.
Results showed, that there are a large variations in the concentrations of the
studied elements, in both water sources. The same variations were also
observed among the three defined sites of the same source according to the
ruling climatic factors during the year. The increase in the concentrations of
most of chemical elements in water source was observed when the temerature
increased. These concentrations generally reach the highest value in the latest
Summer and the beginning of Autumn.
It was shown that the impact of the biogeochemical factors namely: rainfall
and floods, the water drianing from soils and the effect of agricultural and in
dustrial waste - water became clear .
According to the international and Syrian standards of water chimical
qualities, the water of Balloran Dam and ١٦ Tishreen Dam can be used for
drinking and irrigation purposes. While water of the tow studied sites on the
Elkabeer river can only be used for irrigoation.
This study deals with the determination of total mercury concentration in the water
taken from three sites on Al-Kabeer Al-Shemaly River ( near the industrial area and Al-
Damat Lake, and 16 Tishreen Lake), also the effect of some physio-chemical p
arameters
including: DO, pH, T °C. of water in the three sites was studied.
Results showed that the total mercury concentration was low in general, where the
medium concentration in the three studied sites was 0.29 ppb and it was less than the
permission level of total mercury in the surface water(> 10 ppb), the higher value of the
medium concentration of total mercury(0.35, 0.31, 0.21)ppb was recorded in the Industrial
Area, Damat Lake, then 16 Tishreen Lake, respectively. For the changes in the total
concentration of mercury in the three studied sites during seasons of a year, was higher in
Summer comparing with other seasons. The results showed positive correlation coefficient
between the total mercury concentration and temperature, pH value, but it was negative
with DO in Summer.
Al-Kabeer Al-Shemale river rises from Aqraa Mountain and coastal mountains, it is considered one of the largest rivers in the coastal area.Its catchment area is 1097 km2, and empties into the sea to the southern of Lattakia.The study aims to determin
e the impact of climate change on the river discharge. Since the rainfall is the major factor in the runoff formation in the river catchment, the rainfall changes have been studied in climatic stations located within the catchment and its surroundings, and for a period of time exceeding thirty years. The study found that the general trend of rainfall change and runoff with time is decreasing, declining rainfall values ranged in the studied stations between (0.4-12.5) mm per year, and the runoff reached 0.08m3/s in the year. A mathematical equation, predict river discharge after knowing the values of daily precipitation, has been concluded.
This study deals with spatial and temporal distributions of organic and inorganic
phosphorus in sedimentary columns from Al-Kabir Al-Shimaliand Al-Hussain estuaries,
during the period March 2013- February 2014.
Organic phosphorus concentrations ra
nged between (2.0 - 207.6) μg/gin sediments
from Al-Kabir Al-Shimali estuary, and from (1.7 –130.9) μg/gin sediments from
Al-Hussainestuary. Sediment content from inorganic phosphorus ranged between
(12.4 – 371.2)μg / g at sediments from Al-Kabir Al-Shimali estuary, and from
(2.0 - 242.6)μg /g at Al-Hussain estuary. Granular composition of sediments did not play
a significant role in the temporal and spatial distributions of organic and inorganic
phosphorus.
In general, organic and inorganic phosphorus concentrations decreased gradually
from winter to summer, and from surface layers of the sedimentary column towards the
deeper layers.
The ratiobetween inorganic and organic phosphorus increasedfrom river into marine
sediments. In addition, this ratio increased gradually as the sedimentdepthincreased, and
was high in winter and low in summer.
The aim of this research is to identified the tectonic evolution of
Naher Al-Kabir Al-Shimaly Basin from tectonic subsidence curve
witch calculated from Lattakia1 well data. Tectonic subsidence
was identified in lower-middle Jurassic en relation o
f opening of
East Mediterranean basin. A subsidence is occurred in
Cenomaniane, after a stage of uplift in late Jurassic-lower
Cretaceous en relation to fold and erosion known at regional
scale.
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