The effects of rooting volume, greywater irrigation and reduced sunlight on climbing plants for indirect green façades in urban environments

Abstract

Dense urban areas with limited ground space are often deprived of vegetation. By growing climbing plants on buildings as indirect green facades, vegetation can be implemented in a way that uses limited space and seamlessly integrates man-made structures with nature. Benefits of indirect green facades include air purification, noise reduction, micro-climate regulation, provision of natural habitats and improvement of the physical and psychological well-being of urban residents. However, in order to provide effective ecosystem services, indirect green facades need to develop great vegetation coverage to cover buildings, which can be challenging due to small rooting volumes, lack of potable wat..