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العنوان
Biomonitoring of water quality by aquatic plants :
المؤلف
Ramadan, Samah Mahmoud.
هيئة الاعداد
باحث / سماح محمود رمضان
مشرف / السيد فؤاد الحلواني
مشرف / غادة عبدالله الشربيني
مناقش / عبدالحميد خضر
مناقش / مجدي بدير البنا
الموضوع
Aquatic plants. Water hyacinth. Water - Purification - Biological treatment.
تاريخ النشر
2014.
عدد الصفحات
183 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علوم النبات
تاريخ الإجازة
01/01/2014
مكان الإجازة
جامعة المنصورة - كلية العلوم - Department of Botany
الفهرس
Only 14 pages are availabe for public view

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from 183

Abstract

The present work was carried out on Bahr El-Baqar drain in order to investigate the quality status of the drain using the ability of aquatic plants )water hyacinth) in water purification and employ this in biomonitoring programs in Bahr El-Baqar drain.
The vegetation analysis of the study area was classified using multivariate analysis (classification and ordination). The application of TWINSPAN classification on the frequency of 45 plant species recorded in 31 sites during summer at the study area led to the recognition of six vegetation groups.
There were spatial variations in the physico-chemical properties of the water and hydrosoil in Bahr El-Baqar drain. However, the highest mean values of measured factors (pH, EC, TDS, Mg2+, Na+, K+, SAR, CO32-, HCO-3, Cl-, SO42-, CaCO3, OC, NO2-, NO3- NH4+ and TDP) recorded at group A followed by group B that represented downstream.
The factors affected the distribution of vegetation groups evaluated by Canonical Correspondence Analysis (CCA) ordination. The most important factors affecting vegetation types of El-Baqar drain were salinity, total nitrogen and total dissolved phosphorous.
Analysis of eight heavy metals in the water, hydrosoil and plant samples of Eichhornia crassipes revealed that the metal concentrations in hydrosoil were higher than that in the water samples. There is a marked regional variations of the metal content, thus the plants collected from downstream sites exhibited the higher concentrations than the plants collected from upstream sites.
Roots accumulate metal concentrations greater than that in shoots for all metals.