Innovative mobile solutions for vertical greenery in cities

The process of urbanization of cities is accelerating every year. However, it is often accompanied by the deterioration of the ecological situation in cities, caused primarily by the loss of green areas. That is why vertical greening of territories has gained popularity as a way to maximize limited space and bring greenery into the urban environment. This work considers the concept of spreading vertical greening of facades, exploited green roofs, and city territories, for which the mobile landscaping structures are proposed as a means that can provide a significant improvement in the air quality of cities and lead to a reduction in electricity costs for air conditioning due to lowering the temperature of walls and roofs of green buildings. In addition, the possibility of using biochar like the composition of soils for vertical gardening and its contribution to a more ecological approach to gardening is being investigated. Economic calculations of the implementation of a mobile vertical greenery system, considering various factors associated with the costs of its installation, operation, and maintenance, showed a payback period of eight production cycles (at a constant market price). The system can operate for two calendar years without major maintenance or repairs. The use of biochar as a part of the soil mixture increases the adaptability of plants and their rapid growth, which financially justifies its use. Also, the proposed mobile greenery systems contribute to the creation of more sustainable, healthy, and comfortable urban spaces, which makes them an important component of modern urban planning and ecodesign. It is shown that 100 such mobile systems in cities provide a total of 750 sq. m of intensive landscaping.