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Register a new userDetermining Organic and Inorganic Phosphorus Concentration in SedimentColumns, in Al-Kabir Al-Shimali and Al-HussainEstuaries
تحديد تركيز الفوسفور العضوي و اللاعضوي في رسوبيات مصبي نهر الكبير الشمالي و نهر الحصين
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Tishreen University ورقة بحثية
Publication date
2015
fields
marine Chemistry
and research's language is
العربية
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Shamra Editor
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تتناول هذه الدراسة التوزع المكاني و الزماني للفوسفور العضوي و اللاعضوي في العمود الرسوبي لمنطقة مصبي نهر الكبير الشمالي و نهر الحصين خلال الفترة الممتدة من آذار 2013 و لغاية شباط 2014. تراوح تركيز الفوسفور العضوي بين µg/g ((2.0 - 207.6 في رسوبيات مصب نهر الكبير الشمالي، و بين µg/g (130.9-1.7 ) في رسوبيات مصب نهر الحصين، بينما تراوح محتوى الرسوبيات من الفوسفور اللاعضوي بين 12.4- 371.2 )µg/g) في مصب نهر الكبير الشمالي، و بين242.6µg/g)- 2.0) في مصب نهر الحصين. لم يلعب التركيب الحبيبي للرسوبيات دوراً ملحوظاً في التوزع الزماني و المكاني للفوسفور العضوي و اللاعضوي. تدرج بشكل عام تركيز الفوسفور العضوي و اللاعضوي في الانخفاض بدأ من الشتاء إلى الصيف من جهة، و بالانتقال في عمق العمود الرسوبي من جهة أخرى. ازدادت نسبة الفوسفور اللاعضوي إلى الفوسفور العضوي في الرسوبيات المدروسة بالانتقال من المياه النهرية إلى المياه البحرية، كما ازدادت هذه النسبة تدريجياً مع ازدياد عمق الرسوبيات. كانت هذه النسبة أيضاً مرتفعة في فصل الشتاء و منخفضة في فصل الصيف.
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 ranged 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.
References used
Aspila,K.L.;HaigAgemianandChau,A.S.y.; A Semi – automated Method for the Determination of Inorganic, Organic and Total phosphate in Sediment. Analyst,March,1976,Vol. 101, PP.187-197
AVILES,A.;RODERO,J.;AMORES,V.;RODRIGUEZ,M.I.; and NIELL,F.;Factors controlling phosphorus speciation in a Mediterranean basin (River Guadalfeo, Spain).Journal of Hydrol.2006, 331(3–4), 396-408
BOUWMAN,A.F.;BEUSEN,A.W.; and BILLEN,G...Human alteration of the global nitrogen and phosphorus soil balances for the period 1970–2050. Journal of Global Biogeochemical Cycles, 2009, Vol.23,GB0A04,256-322
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Study of the general characteristics of Fractures in the central part of
the AL-Kabir AL- Shimali river basin showed the presence of
several main groups of Fractures with directions NE-SW _ NNESSW,
NW-SE , E-W.and showed increased fracture rate in
the
northern and southern parts of the study area, and that the spacing
between the Fractures close to the medium convergence (5-34) cm ,
also show a aperture ranged between (0.1-5.1) cm, where aperture
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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
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This study was carried out during the period 2011–2010 for 12 months. 110 species
of phytoplankton in Al-Kabir Al-Shamali River were identified including 4 species of
Euglenophyta, 15 species of Cyanophyta, 49 species of Chrysophyta, 40 species of
Chlorophyta and 2 species of Pyrrophyta.
Some physicochemical parameters of water were determined. Some of them were the
temperature which ranged between 10.8–28°C, the pH 7.76–8.2 and the BOD 1.6–10mg/l,
while the concentrations of NO3
- ranged between 1.10-250 mg/l, nitrate 0.13-0.01mg/l, and
PO4
- ions 0.015–1.05 mg/l. The highest value of ammonium ions was 6.25mg/l and the
lowest was 0.011 mg/l. BOD concentrations ranged between 6.06-12.07mg/l.
This is a study of free groundwater level changes through time, and the level of its being affected by natural and artificial factors, which allows evaluating general water situation of the aquifer. This study shows that groundwater system in the stu
dy area from the type of water division line (climatic system) connects in direct connection with infiltration from rainfalls in which the natural factors (recharge) play the main role in forming the system of groundwater, in addition to the artificial factors (irrigation), and these factors yield three periods of the obvious terminal changes of the levels in hydrologic year (descending, stability, ascending). However, groundwater is renewable because of stability in the situations of this water, and its discharge to hydrodynamic net of groundwater in Al-kabir al-shimali and Al-snobar rivers and in the Mediterranean Sea as well.
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
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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
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permission level of total mercury in the surface water(> 10 ppb), the higher value of the
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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.
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