Use of Toxic and Allergen Plants in Landscape Arrangements of Urban Historical Areas: The Case of Cesme Castle (Izmir)
2024
Gur, Necmettin | Kahraman, Ozgur
Urban historical areas and buildings are structures that provide important information, culture and tradition transfer from the past to the present. These places are both an effective tourism area and a part of urban life. In addition to the aesthetic, ecological and functional benefits of the plants to be used in urban historical areas, attention should be paid to their allergenic and toxic effects. Exposure to plants with toxic effects may cause mild or serious negative effects on human health. The study was carried out to determine the toxic and allergenic plants found in the historical area of Çeşme Castle and to make evaluations about the area. The plants were examined on site and photographed in the study area. According to the literature, the allergenic effect, toxic status, toxic parts and toxic substances of the plant species were determined. The data obtained were analysed and as a result of the analyses; 30 plant species, 29 genera and 22 families were identified in the area. The ratio of toxic plant species in the area was 53.33 % and the ratio of allergenic plant species was 36.66 %. According to their forms, the proportion of toxic plant species was 37.5 % and the proportion of allergenic plant species was 81.81 %, with the highest proportion found in tree form plant species. Among the identified plants, 5 species have both toxic and allergenic effects. Suggestions were made such as measures that can be taken to stop the contact of plants with toxic effects with the users in the area, and the portable ones can be replaced with non-toxic plants. In addition, suggestions were also made for measures that can be taken during the landscape design phase regarding allergenic plants.
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