摘要
绿视率是衡量城市品质的重要参考指标。如何通过适宜的绿视率营造良好人居环境,提高人体愉悦度是风景园林学的重要研究内容。当前绿视率对人体愉悦度的影响仍缺少定量研究。基于全景图测量的全景绿视率可涵盖超出普通二维图像的环境要素,因此本文通过调查问卷和脑电信号(EEG)数据,探究不同全景绿视率环境下个体愉悦度变化规律。实验通过依次添加灌木、乔木等植被,精准控制预景中的全景绿视率,使其按照0、30%、60%、90%、0的顺序变化。研究结果表明:1)个体愉悦度在初次观看全景绿视率为0的环境时最低,并随全景绿视率增加而提升,全景绿视率为60%时被试愉悦度最高;2)全景绿视率为90%时,被试愉悦度显著下降,部分被试出现恐惧、压抑的情绪特征;3)全景绿视率由90%重新回到0时,被试愉悦度明显提高,主观体感从枯燥、无聊转为开敞、明亮。上述结果表明,当全景绿视率为60%,人体愉悦度可能最佳;过高的全景绿视率可能给人带来压力,并显著降低愉悦度;交替变化的绿视环境可能比单一的环境更能提高游憩愉悦度;绿视率与个体愉悦度之间的复杂性有待深入研究。本研究成果可为户外绿化环境的设计、优化及评估提供科学依据。
Green View Index(GVI) is a core indicator to measure urban quality.Identifying proper ranges of GVI has become a significant proposition in Landscape Architecture to design environments that can increase individuals’ pleasure level.However,quantitative research on the pleasure level impacted by varied GVIs is still inadequate.This research explores the changes of pleasure level through EEG data collection and questionnaire survey under panoramic scenarios with different panoramic GVIs,which can represent more environmental elements than two-dimensional images.By adding shrubs and trees gradually,this experiment precisely set five scenarios with the GVI changing from 0 to 30%,60%,90%,and 0.Research results show that 1) individuals’ pleasure level dropped to the lowest when they first enter the scenario with a panoramic GVI of 0,but when panoramic GVI increased from 0 to 30% and to 60%,the pleasure level increased and finally researched the highest;2) in an environment with a panoramic GVI of 90%,individuals’ pleasure level significantly reduced,while some participants selfreported the sense of fear and oppression;and 3) when shifting panoramic GVI from 90% to 0,the bright and open space increased participants’ pleasure level.All these findings reveal that individuals’ pleasure level reached the highest under the scenario with 60% panoramic GVI;extremely high panoramic GVI may lead to negative emotions;and landscape with carefully designed panoramic GVIs can improve one’s pleasure level.Future research may probe into the relationship between GVI and individuals’ pleasure level from more perspectives to provide reference for the design,optimization,and evaluation of outdoor urban greening.
作者
聂玮
贾江旭
王敉敉
孙进
李罡
王颖(译)
田乐(译)
申瑞琪(译)
闫露(译)
NIE Wei;JIA Jiangxu;WANG Mimi;SUN Jin;LI Gang;WANG Ying;Tina TIAN;SHEN Ruiqi;YAN Lu(School of Architecture and Urban Planning,Anhui Jianzhu University,Hefei 230022,China;Everglades Wetland Research Park,Florida Gulf Coast University,Naples,FL 34112,USA;不详)
出处
《景观设计学（中英文）》
CSCD
2022年第2期36-51,共16页
Landscape Architecture Frontiers
基金
安徽省自然科学基金项目“基于出行时空行为的城市绿地空间慢行机能优化方法研究”(编号:1908085QE209)
安徽省高校自然科学研究重点项目“健康运动导向的日常游憩型绿地布局优化途径研究”(编号:KJ2018A0505)
2020年度国家留学基金委出国留学资助项目(CSC编号:202008340054)
关键词
全景绿视率
脑电信号
环境心理学
景观设计
虚拟现实
愉悦度
Panoramic Green View Index
EEG
Environmental Psychology
Landscape Architecture
Virtual Reality
Pleasure Level
