Abstract
Observations and analysis based on using scanning electron microscope (SEM) micrographs have been carried out to describe the impact of pollution caused by the emitted cement dust from the cement factory on the plant diversity of the surrounding area of Al-Rashadyah/ Tafila cement factory. Leaves of five selected species of Crataegus aronia, Gundelia tournefortii, Anchusa strigosa, Lactuca orientalis and Astragalus bethlehmiticus, from five localities within the study area based on their easily sampling and their availability in all localities during the period of collection were used for assessing the impact of the cement dust. A species of C. aronia was chosen as control species grown in Wadi Shuaib 200 km to the north of the study area. The results indicate that plants species grown near the cement factory are covered with higher amounts of dust accumulations than those grown at long distance from the factory. The analysis of SEM shows many different elements deposited on the leaves of all plants that have been sampled in the study area such as: calcium, potassium, aluminum and others, and it was found that calcium has the highest concentration than the other mineral salts. Key words: Plant diversity, pollution, Tafila, Jordan.
Highlights
Plant diversity in Jordan faces the danger of degradation and loss of many plant species as a result of both adverse human impact and environmental factors
These changes are occurring at natural rapid rate as results of human activities, such as land-use, climate change, nitrogen deposition, species introductions, increase in population, over exploitation of plant and animal species, pollution of soil, water and air
This study is focusing on analyzing and identifying the major pollutants emitted from the cement factory of AlRashadeyeh in Tafila governorate, south of Jordan, on the leaf surface of five local wild plant species collected from the surrounding area of the cement factory, and one plant species as a control from Wadi Shuaib area 200 km north of Al- Rashadeyeh cement factory, and its impact on the diversity of plant species
Summary
Plant diversity in Jordan faces the danger of degradation and loss of many plant species as a result of both adverse human impact and environmental factors. Investigated the general pattern of changes in species richness and diversity of vascular plants due to environmental contamination, and associated habitat changes imposed by point polluters and identified the sources of variation in the response of plant communities to industrial pollution at a global scale. This study is focusing on analyzing and identifying the major pollutants emitted from the cement factory of AlRashadeyeh in Tafila governorate, south of Jordan, on the leaf surface of five local wild plant species collected from the surrounding area of the cement factory, and one plant species as a control from Wadi Shuaib area 200 km north of Al- Rashadeyeh cement factory, and its impact on the diversity of plant species
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