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建物の規模の世界的増加は,都市拡大パターンがより多様で分散性が低いことを示しています
Yingcheng Li1, Xiaohan Zhong2, Ben Derudder3,4,5
1School of Architecture, Southeast University, Nanjing, China. lychls@seu.edu.cn.
Nature communications
|February 20, 2026
まとめ
この研究は,3次元 (3D) の都市拡大が,2次元測定よりも集中的であることを明らかにしています. グローバル・サウスにおける垂直成長パターンは,強いものの,しばしば低中心性を示し,土地利用と炭素排出に影響を及ぼします.
科学分野:
- 都市学は都市研究である.
- 環境科学 環境科学
- 地理空間分析 (Geospatial Analysis) とは,地理空間分析 (Geospatial Analysis) とは,地空間分析 (Geospatial Analysis) とは,地空間分析 (Geospatial Analysis) とは,地空間分析 (Geospatial Analysis) とは,地空間分析 (Geospatial Analysis) とは,地空間分析 (Geospatial Analysis) とは,地空間分析 (Geo-
背景:
- 都市空間構造を理解することは,環境の持続可能性にとって極めて重要です.
- 既存の研究は,垂直成長の空間的分布をしばしば無視し,主に3Dビルドアップボリュームに焦点を当てています.
研究 の 目的:
- 新規都市化地域における垂直都市拡大の中心性と強さを調査する.
- 三次元 (3D) 都市拡大指標を従来の二次元 (2D) 測定値と比較する.
主な方法:
- 3Dの都市拡大を特徴付けるための中心性指数 (CI) と強度指数 (II) の開発.
- マルチソースのリモートセンシングデータを分析のために利用する.
- 2D測定と3D拡大パターンの比較.
主要な成果:
- 三次元 (3D) の都市拡大は,一般的に二次元 (2D) の拡大よりも集中しています.
- 垂直的成長はグローバル・サウスでより顕著ですが,中国以外の多くの都市では3Dの中心性が低いことが示されています.
- 3D拡張パターンは自然/社会経済条件と関連しており,経路依存性を示しています.
結論:
- グローバル・サウスで流行している低中心性3D拡大パターンは,土地利用の効率を高めますが,通勤に関連する炭素排出量を増加させる可能性があります.
- 将来の都市化がアフリカや南アジアに移行すると,持続可能な開発のための垂直成長のダイナミクスを慎重に検討する必要がある.
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