| 摘要: |
| 探明多尺度下城市建成环境对滨湖空
间活力的影响关系，是城湖一体化发展中合理
利用与维护城市湖泊空间资源的重要依据。研
究以武汉市东湖风景区为例，采用游客GPS 轨
迹与研究区多源地理数据，构建“多样功能—
可达体验—场所品质”复合体系，以最优空间
回归模型揭示城中湖活力的影响特征及空间效
应。研究发现： 东湖湖泊空间活力整体呈
现“一核显著、多核共存、带状延伸”的地理
格局。岸线开敞度、森林率、路网密度和绿地
率是影响滨湖空间活力的核心环境要素；公共
服务密度、路网密度等与湖泊空间活力呈现正
相关，最大建筑高度、最近地铁距离等呈现负
相关性。研究结果提高了对城中湖空间活力特
征的认识，为健康融合的城湖关系优化路径提
供参考。 |
| 关键词: 城中湖 活力测度 多源数据 空间
效应 多尺度地理加权回归 |
| DOI：10.13791/j.cnki.hsfwest.20240819001 |
| 分类号: |
| 基金项目:湖北省建设科技计划项目（JK2024101） |
|
| Spatial vitality measurement and impact effects of urban lake based on multi-source data:A case study of East Lake Scenic Area in Wuhan |
|
HUANG Yan,GUO Yuxiao,QUAN Jingyi,WANG Xinyu
|
| Abstract: |
| Lakes inherently attract human activity. Elucidating the multi-scale influence of the
urban built environment on waterfront spatial vitality is fundamental to the rational utilization and
conservation of urban lake resources within integrated city-lake development frameworks.
Research consistently reveals clustered vitality patterns along lake shores. A deeper investigation
into the impact mechanisms governing these spatial vitality clusters in urban lakes is essential for
leveraging high-attraction nodes and confronting the paradox of underutilized waterfront spaces
despite significant investment—hindering the realization of “lakes within cities, people by the
water” in specific locales. Wuhan, emblematic as China’s “City of a Hundred Lakes”, possesses
abundant and advantageous lake resources. East Lake stands as a paramount exemplar of an urban
lake, showcasing Chinese grandeur, Chu-style characteristics, and Wuhan’s distinct identity. This
study employs 4 430 tourist GPS trajectories alongside multi-source geographic data for Wuhan’s
East Lake Scenic Area. Utilizing spatial autocorrelation analysis and Multiscale Geographically
Weighted Regression (MGWR), the study constructed a composite indicator system encompassing
“functional diversity”, “accessibility experience”, and “place quality”, incorporating 21 detailed
environmental variables. This framework enabled investigation into the influence characteristics
and spatial effects of environmental factors on urban lake vitality using optimal spatial regression
modeling. Key findings reveal distinct spatio-temporal patterns of vitality within East Lake.
Spatially, vitality manifests a geographical structure characterized by a dominant core, multiple
subsidiary cores, and ribbon-like extension. High-high clustering is prominent near Lakeside
Route and Lake-and-Mountain Route, contrasting with low-low clustering in the central lake area;
significant aggregation positions gradually formed the lake’s spatial core zones, exhibiting a
pattern of one dominant nucleus with multiple coexisting cores. Notably, scenic roads adjoining
open water, bridge structures, and rural ponds exhibited pronounced public preference.
Temporally, weekend vitality exhibited broader ribbon-like expansion compared to weekdays,
indicating more widespread cross-regional public movement during rest days. Vitality peaks
occurred in summer and autumn, with autumn displaying the most extensive high-vitality zones.
Winter high-vitality patterns differed significantly from spring and summer. Regarding impact
effects, MGWR demonstrated significantly superior performance compared to both Ordinary
Least Squares (OLS) regression and classic Geographically Weighted Regression (GWR) across
all parameters. The spatial distribution of MGWR coefficients revealed differential influences
across indicator categories: impacts from functional diversity factors remained relatively stable;
accessibility experience factors exhibited the broadest spatial scale of effect; place quality factors
demonstrated the strongest overall magnitude of influence. Core environmental elements affecting
waterfront vitality encompass shoreline openness, forest coverage ratio, road network density, andgreen space ratio. Public service density, road network density, forest coverage ratio, and parking convenience showed positive correlations with spatial vitality,
whereas maximum building height and proximity to subway/bus stations exhibited negative correlations. Based on the distinctive scenic resources across
service zones, three principal recommendations emerge. Firstly, a functional shift from quantitative expansion towards quality-and-efficiency-oriented
development is imperative. This necessitates fully harnessing Wuhan’s cultural and natural heritage to transform resource abundance into high-caliber
outcomes. Secondly, enhancing synergistic benefits between the lake and adjacent urban areas by optimizing destination accessibility and en-route landscape
experience is crucial. Leveraging complementary resources according to zone-specific characteristics and target positioning can amplify the influence of highvitality
zones and improve the utility and connectivity of scenic corridors. Thirdly, implementing eco-aesthetic practices to elevate place quality is vital.
Rationalizing the spatial layout of natural and cultural elements, while prioritizing the interdependence between facilities, blue-green spaces, and cultural assets,
fosters vibrant, organized natural outdoor spaces conducive to human-nature symbiosis. Furthermore, tailored optimization pathways were developed for two
critical interface zones. For the urban-lake interface, optimization should prioritize increasing public service density and critically evaluating the supplydemand
efficiency of resources—such as science-education, culture, sports, and leisure—across high and low vitality areas to prevent service surplus or deficit,
particularly in negatively correlated zones. Strategic focus should be directed towards enhancing Hubin Road’s role as a pivotal ecological wedge-ring within
the citywide greenway structure, upgrading the quality of peripheral attractions, strengthening the transition towards quality-and-efficiency, and improving the
accessibility and visual quality of blue-green spaces. For the urban-lake-mountain interface, strategies must leverage superior road infrastructure to coordinate
synergistic development and radiating influence with other zones. Advancing spatial development near mountain forest roads, amplifying the positive potential
of green spaces, and strategically utilizing currently underdeveloped forest, green space, and shoreline resources through targeted spatial adjustments are key
priorities. In conclusion, multi-source data presents unprecedented opportunities for granular measurement of urban lake spatial vitality and its impact
mechanisms. As quintessential spaces for harmonious human-nature interaction, urban lakes’ inherent advantages constitute fundamental recreational assets,
where their multifunctional characteristics catalyze regional vitality by fulfilling diverse visitor needs. The methodological cornerstone of this study lies in
effectively mediating complex built environment elements while scientifically acquiring and operationalizing vitality metrics. By integrating active mobility
trajectory data with comprehensive urban geographic datasets, this research establishes an analytical framework for spatial vitality measurement using Wuhan’s
East Lake Scenic Area as a paradigm case. |
| Key words: urban lake vitality measurement multi-source data spatial effects multi-scale geographically weighted regression |
