Research On Evaluation Of Effectiveness Of Visual Perception In Plantscape Space Based On Eye Tracking Experiments In Real Spaces

Plantscape plays an extremely important role in improving,living environment.Visual perception evaluation is the decisive criterion for the construction of plantscape space.It is of great significance to the optimization of plantscape planning and design.At present,the visual perception evaluation of plantscape space is mostly based on landscape photos,and the actual effect evaluation of visual design for real space scenes is relatively lacking.This study uses graphic analysis and eye movement experiments to identify the visual focus elements of the plantscape space and the use perception elements in the scene experience,and compare the consistency of the spatial location and distribution of the two types of elements.Explore the reasons for the differences in the spatial distribution of the two types of elements,and evaluate the actual effect of plantscape space.The study interprets the design intent from the perspective of professionals,analyzes the contrast between the virtual and real contrast of the plantscape space and the scene elements by drawing the plan of the scene,and speculates on the "visual focus" of the design composition and the attractive landscape elements,and draws the "analysis diagram".Then,by collecting and analyzing the real eye movement data of the park visitors,the regularity of the non-professional "users" is revealed,and the "eye movement diagram" is drawn according to the experimental results to evaluate the scene effect against the analysis diagrams.Eye-tracking experiments based on real scenes have a more realistic three-dimensional experience to achieve more accurate experimental results.In the study,9 landscaped spaces with different degrees of openness in the two types of spaces,namely,through the landscaped space and staying landscaped space in Moshan Scenic Area,Wuhan,were selected as the research case.In August 2019,when the weather was fine,nine eye movement experiments were carried out,eye movement experiment data were collected and questionnaires and interviews were conducted.The research shows that the straight line guidance of the regular road bottom interface and the sidewalk trees on both sides is strong,which makes it difficult to shift the line of sight to the roadside scenery;The natural garden road-planting space can cause the sight line to shift to both sides of the garden road due to the winding and changing bottom interface and the focus scenery on the road side.Plantscape space for recreation with rich plant levels and rich combinations can easily become the visual focus,the river bank and the skyline will attract more attention.The enclosedplanting space will increase the anxiety of “finding entrances and exits”,resulting in an increase in the average duration of visual intake.The more abundant and complex the plant species and combinations,the more careful visitors will see.In summer,people prefer to see the scenery that makes them feel cool.The middle and low shrubs can easily block the scenery on both sides of the garden road,reducing the viewing and use efficiency.The main reason why the experiment failed to achieve the expected results was due to the insufficient contrast between the scene elements and the improper management and maintenance of the plants in the later period.According to the research results,the strategy of planting landscape design is proposed: firstly,it is recommended that the design of planting space should pay attention to the contrast between the virtual and the real of the space interface;The second is the construction of the river bank line and the skyline,and against the contrast of the color,shape and texture of the scenery.In addition,we should pay attention to the maintenance and pruning of plants in the later period,transplant and replant in time,pruning and finishing regularly to maintain the landscape of the planting landscape.Finally,it is recommended that the regular garden road-planting space emphasizes the beauty of the trunk of the sidewalk trees and creates an overall effect.The natural garden road-planting space highlights the individual beauty of the trees and the visual focus of the design.Planting space for recreation to increase the level of planting,with a rich combination of plants to create a varied recreational space.