Abstrakt: |
The continuous increasing accumulation of carbon dioxide (CO2) and other greenhouse gases (GHGs) in the atmosphere is commonly known as the most significant cause of global warming and, therefore, the alteration of the world's climate. This has promoted urban planting projects for many countries. Therefore, it is imperative to select high carbon sequestering landscape plant species while considering their aesthetic values of urban green space. This research assesses the CO2sequestration capability of selected plants to identify the most effective approach for CO2mitigation in power plants and industrial towns, with its high level of 5000 ± 30% ppm. A closed system was designed to imitate the CO2emissions in power plants and industrial cities to assess the CO2concentration, relative humidity, and temperature every hour for a period of 8 h by the non-dispersive infrared method (NDIR) under the effect of each of the selected studied plants. Three different plant types were represented. The first plant type was hedge, comprising Dodonaea viscosa, Lantana camara, and Clerodendrum acerbianum. The subsequent plant type selected was wilds, including Moringa peregrina, Acacia raddiana,and Calotropis procera. Lastly, the third plant type was citrus, comprising Citrus aurantifolia, Citrus sinensis, and Citrus reticulata. Vegetation growth parameters including number of leaves, plant length (cm), root length (cm), shoot length (cm), fresh weight (g), volume (ml), stem weight (g), root weight (g), leaves weight (g), and plant dry weight (g) were measured for each plant and correlated with the sequestered CO2. The sequestered CO2for all studied plants and the effectiveness of each plant sequestration with respect to their weights and volumes were calculated. Dodonaea viscosahas been shown to be the best alternative selection for sequestering the CO2concentration with respect to its weight and volume, followed by Moringa peregrinaand Acacia raddiana. Moringa peregrinahas been more effective than Clerodendrum acerbianumin absorbing CO2with respect to their weights and volumes. Concerning measured growth parameters in Dodonaea viscosa, only root length has a very strong negative correlation with CO₂ consumption. The results can be used to design a system with plants for decreasing CO2concentration in power plants and industries where the CO2concentration is high as a result, mitigates global warming and climate change. |