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40年 (1984-2024) 中国における都市土地利用の動態の地図作成
Shuping Xiong1, Xiuyuan Zhang2, Haoyu Wang1
1College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
Science bulletin
|February 14, 2026
まとめ
中国 中国 中国 中国 中国.
科学分野:
- 地球観測 地球観測
- 都市地理 都市地理 都市地理
- 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:
- 中国における急速な都市化は,土地利用の大きな変化をもたらした.
- 現存する歴史的な土地利用地図には,一貫した解像度と十分なラベルが欠けている.
- 長期の都市土地のダイナミクスを理解することは,持続可能な計画に不可欠です.
研究 の 目的:
- 土地利用のクロスタイムとクロス解像度の地図作成のための新しい枠組みを開発する.
- 歴史的土地使用分類を5年間隔の40年期に拡張する.
- 中国の都市部における高解像度で一貫した土地利用データを提供する.
主な方法:
- ランドサットとセンチネル-2のデータを10mの解像度で調和させるための超高解像度再構築.
- レーベルの不足に対処するために,意味的メモリバンクを持つ半監督学習.
- タイムコヒーレンスのために,道路に制限された多時的セグメンテーション.
主要な成果:
- 土地利用分類の全体的な精度は77.31%から89.72%に達しました.
- 40年 (1984年−2024年) にわたる都市土地の進化を5年間隔でマッピングした.
- 都市土地の進化の3つの異なる段階を特定した.
結論:
- この研究は,数十年にわたる土地利用マッピングのための堅固な枠組みを提供します.
- 都市部の土地の進化は,広範囲の拡大から質重視の再編への移行を示しています.
- この調査結果は,中国の持続可能な都市計画と土地のガバナンスを支持しています.
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