Study On The Effect Of Greenery On Human Healing In Residential Environments

With the huge changes in social lifestyles,the functions carried by domestic space are becoming more and more diverse,and the relationship between people and domestic space also becoming closer.Therefore,exploring the interplay between domestic environment and human health has become a research issue that cannot be ignored in creating a healthy living environment.Plant elements are an important part of creating a healthy living environment,yet most studies have focused on the impact of plant elements on human health in outdoor spaces and indoor spaces such as offices,classrooms,hospitals and nursing homes.Fewer studies have focused on the health promotion effect of plant elements in domestic space,and there is a particular lack of studies on the effects of greenery plants on occupants in the interior spaces of urban flats.In order to scientifically evaluate the healing effect of greenery plants in the internal environment of a flat on the physical and psychological health of people,this study takes the flats as the research object,which is the typical form of housing in Chinese cities today.Through a questionnaire survey,urban residents in Xi’an and Beijing were used as respondents to investigate their application status and demand preferences of greenery plants in the living environment,as well as their psychological health,and to highlight the importance and uniqueness of greenery plants in the living environment by comparing their healing effects with other types of accessible natural elements.At the same time,aquantitative experiments were conducted with groups of postgraduate students as the main subjects.By monitoring the subjects’ physiological and psychological indicators,attention and landscape evaluation,the effects of different numbers and spatial placements of greenery plants in the same space on human physical and mental health were explored.The main findings are as follows.(1)The use of indoor greenery plants has a wide popular base among urban dwellers in China.Most urban residents recognise the healing effects of indoor greenery plants and grow them at home.(2)Among the various natural elements accessible to residents in their homes,both indoor greenery plants and natural landscapes outside windows can have a healing effect on the residents,and indoor greenery plants have a better healing effect than natural landscapes outside windows.(3)Compared with the interior space of the flats without plants,spaces with 5%-15%greenery coverage were rated higher landscape evaluation and more effective in healing occupants’ physical and mental health.Relatively speaking,a small number of greenery plants in a flat interior space is a more cost-effective strategy to create a healing space.(4)The placement of greenery plants in the interior space of a flat has an important impact on the occupants’ perception of the landscape and physical and psychological healing.When arranging greenery plants in domestic spaces,it is best to place them at a certain distance(>1.4m)from the occupants to maximise the landscape and healing benefits of greenery plants.(5)More number of greenery plants in a flat interior space is not always better,and it is not always better for people to be as close to greenery plants as possible.On the contrary,too many greenery plants(25% green coverage)or too close to the occupants(<1.4m)can reduce occupants’ evaluation of the environment and are detrimental to their physical and psychological recovery,and should be avoided when using greenery plants to decorate the home interior space.