ArticleFrontiers in public health2025
Exploring the impact of urban expansion on urban green land use efficiency: a case study of Chengdu-Chongqing urban agglomeration.
Article in Frontiers in public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: Efficient utilization of limited land resources to maximize economic, social, and ecological benefits is critical for enhancing urban green land use efficiency and achieving sustainable urban development. Methods: This research integrates multi-source socioeconomic data to analyze 16 cities within the Chengdu-Chongqing urban agglomeration from 2006 to 2022. Employing exploratory spatial data analysis, standard deviation ellipse modeling, bidirectional fixed-effects regression, and geographically and temporally weighted regression, we examine the spatial-temporal evolution of urban green land use efficiency and the impact of urban expansion on urban green land use efficiency. Results: The result shows that: (1) urban green land use efficiency exhibits a significant upward trend, reflecting a core-periphery structural evolution. (2) The spatial spillover effect of urban green land use efficiency remains consistently negative, particularly pronounced in the core cities of Chengdu and Chongqing. (3) Urban expansion negatively affects urban green land use efficiency, with a coefficient estimate of -0.185 in the fixed-effects model, and the GTWR model further reveals a deepening adverse impact from 2006 to 2022. Discussion: These findings underscore the necessity of adopting "smart growth" strategies and provide policymakers with evidence-based insights for optimizing urban spatial planning and intercity collaboration.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.