Floristic and ecological features of three drains in the North of Nile Delta of Egypt | ||
| Mansoura Journal of Biology | ||
| Volume 48, Issue 3, September 2020, Pages 52-60 PDF (944.22 K) | ||
| Document Type: Research Article | ||
| DOI: 10.21608/mjb.2020.460719 | ||
| Authors | ||
| Dina S. Srour1; Mohamed Abdelaal* 2; Ibrahim A. Mashaly1 | ||
| 1Botany Department, Faculty of Science, Mansoura University, 35516, Mansoura, Egypt | ||
| 2Botany Department, Faculty of Science, Mansoura University | ||
| Abstract | ||
| : The present study provides an investigation of the floristic and ecological features, in three drains in the North of Nile Delta, of Egypt. Thirty-two stands were distributed in three drains namely, Amar, El-Westany and Omar Beck. The frequency of each plant species was estimated. Soil and water analyses were carried out in each stand. Two Way Indicator Species Analysis (TWINSPAN) was applied to the frequency values of the recorded species. Thirty-six species belonging to 34 genera and 18 families were recorded. These species were classified into 19 annuals, 15 perennials and two biennials. Poaceae (22.1 %), Chenopodiaceae (13.8 %), Asteraceae, Brassicaceae (11.1 %) and Polygonaceae (5.5%) were the most represented families. TWINSPAN allowed to identifying three plant groups: (A): Typha domingensis, (B): Phragmites australis and (C): Phragmites australis. In our study, Canonical Correspondences Analysis (CCA) of both hydrosoil and water variables highlighted the importance of the organic matter, salinity (sodium, chloride and electric conductivity) and pH for the floristic composition. In soil and water, the concentrations of heavy metals take the following accumulation order: Fe> Mn> Zn> Pb> Cu> Cd> Co, where El-Westany Drain had the highest concentrations and the lowest concentrations were recorded at Omr Beck Drain. The concentration of heavy metals in water samples was above the standard level of the Egyptian Environmental Affairs Agency. Therefore, it is crucial to establish a treatment water station if possible. | ||
| Keywords | ||
| drains; life forms; multivariate analysis; hydrophytes; water quality | ||
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