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Tabriz university
Abstract:   (720 Views)
The reduction of water resources due to the issue of global climate change and population growth is one of the most critical issues facing the designers and planners of the development of green spaces in cities. Against these challenges, there is an urgent need to improve the efficiency of water consumption and chain use of water resources with suitable options. In this regard, due to the significant volume of urban Effluent wastewater, its reuse in green space irrigation is important from the point of view of water resource management from an ecological and economic point of view. For this purpose, in this research, the effect of Effluent wastewater from Parand city treatment plant (located in the southwest of Tehran province) on the growth and performance of three types of cover plants (Frankenia thymifolia, Dichondra repens, Festuca glauca) as resistant, semi-resistant and sensitive species respectively was studie. This study was conducted as a factorial experiment based on a completely randomized design with three replications and the use of wastewater at 4 levels with irrigation treatments of zero (control), 50, 75, and 100% compared to fresh water, and then the concentration of nutrients (N, P, K) in the plant were evaluated. The results of the Investigations of plant analysis in this research showed that the nitrogen concentration in the shoots of Frankinia and Dichondra plants was at the optimal level (2.5-3.5 percent). Also, in the blue fescue plant, nitrogen concentration in the shoot and root was less than the optimal amount. The phosphorus concentration in the shoot and root of all cover plants was at the optimal level (0.2-0.4%). The potassium concentration in the shoots of Frankinia and Dichondra plants was at the optimal level (1.5-5%), but in the fescue plant, it was less than this amount, which indicated the deficiency of this nutrient. Also, the potassium concentration in the roots of Frankinia and Blue Festuca plants was less than the optimal level, but in the roots of the Dichondra plant was at the optimal level. 
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Type of Study: Research | Subject: Plant water relations
Received: 2023/10/22 | Accepted: 2024/01/23 | Published: 2024/03/12

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