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个人信息Personal Information
副教授 硕士生导师
教师英文名称：Yin Du
教师拼音名称：duyin
所在单位：大气科学学院（气候系统预测与变化应对全国重点实验室办公室、院士工作办公室、气象与环境联合研究中心）
办公地点：气象楼601
联系方式：ydu@nuist.edu.cn
职称：副教授
硕士生导师
学科：大气科学
A Threshold‐Free Clustering Framework Disentangles Policy‐Linked Greening From Urbanization‐Driven Browning in the Yangtze River Delta of China
点击次数：
影响因子：5.0
DOI码：10.1029/2026GL124333
发表刊物：Geophysical Research Letters
摘要：Accurately characterizing grid-level vegetation dynamics in urban agglomerations remains challenging due to high spatial heterogeneity and complex temporal responses to urbanization. We developed a threshold-free clustering framework that integrates the LinCoIndex and structural similarity (SSIM) index to address this issue. Applied to the Yangtze River Delta urban agglomeration in China, it reveals three findings that challenge conventional threshold approaches: (1) L-shaped urbanization-driven browning in new urban areas versus V-shaped policy-linked greening in urban cores, with a browning-to-greening transition around 2009–2011; (2) low-vegetation footprints occupying only 30–58% of urbanized area while impervious surface plus annual peak vegetation exceeds 100%; (3) above-impervious canopy increasing from 10% to 48% through tree planting and high-rise building restrictions, enabling the region to meet China's 43% urban vegetation coverage target. These results indicate that coordinated greening interventions can offset net vegetation loss under sustained urbanization pressure.
全部作者：谢佳辰,汪宁
第一作者：谢志清
论文类型：期刊论文
通讯作者：杜银
论文编号：10.1029/2026GL124333
学科门类：理学
卷号：53
期号：18
是否译文：否
发表时间：2026-09-11
收录刊物：SCI