Abstract

After impoundment in the main lake of Mosul dam, water quality for regulation lake have been evaluated in addition to the enumeration of phytoplankton through examination of water samples collected in seven successive month’s from January to July 2000 to give an idea about water quality. Variation in parameter values were noticed in the studied period and the phytoplanktons were belongs to three divisions Bacillariophyta (60%), chlorophyta (30%) and pyrrophyta (10%). It was noticed also that the values of most studied parameters were higher than the results obtained by previous study carried out on the same lake in (1988). The data of all measured properties were within the limited of water quality criteria for Iraqi systems for water and river conservation (1967).

Highlights

  • ‫‪parameters were higher than the results obtained by previous study carried out on the‬‬ ‫‪same lake in (1988)

  • The data of all measured properties were within the limited of water‬‬ ‫‪quality criteria for Iraqi systems for water and river conservation (1967).‬‬ ‫ــــــــــــــــــــــــــــــــــــــــــــــــــــــ‬

  • ‫النترات والأورثوفوسفات‪:‬‬ ‫توضح الأشكال )‪ 11‬و‪ (12‬معدل تركيز أيوني النترات والأورثوفوسفات خلال مدة الدراسة؛ يلاحظ‬ ‫أن تركيز كل من المركبين كان منخفض ًا في شهر كانون الأول ثم بدأ بالارتفاع خلال أشهر كانون الثاني‬ ‫وشباط وآذار )الأشهر التي يحدث فيها المزج في البحيرة وتقل فيها أعداد الطحالب( ثم يبـدأ بعـد ذلـك‬ ‫تركيز كل من المادتين بالانخفاض خلال شهر نيسان والأشهر التي تليه ويعود السبب في ارتفاع تركيـز‬ ‫الفوسفات والنترات في الأشهر المذكورة إلى انخفاض النشاط الطحلبي وأعداد الطحالب المستهلك الرئيس‬ ‫لهذين المركبين الضروريين لنموها )المياح‪(1986 ،‬؛ كذلك تزيد مياه السيول المنجرفة وما تحملـه مـن‬ ‫فضلات زراعية من المناطق المجاورة للبحيرة من تركيز هذه الشوائب فض ًلا عن عمليـة المـزج فـي‬

Read more

Summary

Introduction

‫‪parameters were higher than the results obtained by previous study carried out on the‬‬ ‫‪same lake in (1988).

Results
Conclusion
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call