摘要
冬奥会作为国际性体育盛事,其举办地往往位于生态脆弱区域,且受到大型工程建设活动的显著影响,这对当地生态环境保护提出了严峻挑战。因此,对冬奥会赛区的生态质量进行持续监测显得尤为重要。本文以北京2022年冬奥会延庆赛区为研究对象,利用谷歌云计算平台提供的2015—2022年陆地卫星8号(Landsat 8)遥感影像数据,通过计算绿度、湿度、干度及热度等生态指标,运用主成分分析构建了遥感生态指数,系统揭示了该赛区全生命周期的生态质量时空变化情况。通过转移矩阵和差值分析方法,进一步探讨了生态质量的变化趋势。研究结果显示,延庆赛区在2015—2022年间生态质量虽有所波动,但总体呈现上升趋势,表明生态修复工程在该区域取得了一定成效。
As an international sports event,the Winter Olympics is often held in ecologically fragile areas and is significantly affected by large-scale engineering construction activities,which poses a serious challenge to the protection of the local eco⁃logical environment.Therefore,it is particularly important to continuously monitor the ecological quality of the competition area of the Winter Olympics.This paper took the Yanqing area of the Beijing 2022 Winter Olympics as the research object and used the Landsat 8 remote sensing image data from 2015 to 2022 provided by the Google cloud computing platform.By calculating the ecological indicators such as greenness,humidity,dryness,and heat,the remote sensing ecological index was constructed by principal component analysis,and the spatial and temporal changes of ecological quality in the whole life cycle of the competition area were systematically revealed.Through the transfer matrix and difference analysis method,the change trend of ecological quality was further discussed.The results show that although the ecological quality of the Yanqing competition area has fluctuated from 2015 to 2022,it shows an overall upward trend,indicating that the ecological restora⁃tion project has achieved certain results in this area.
作者
郭欣怡
吕扬
侯庆明
GUO Xinyi;LYU Yang;HOU Qingming(Beijing Institute of Surveying and Mapping,Beijing 100038,China;Beijing Satellite Application Technology Center,Beijing 100038,China)
出处
《北京测绘》
2025年第9期1251-1260,共10页
Beijing Surveying and Mapping
基金
北京市科技计划(D171100007417003)。
关键词
冬奥会
延庆赛区
谷歌地球引擎
遥感生态指数
生态质量
Winter Olympics
Yanqing competition area
Google Earth Engine
remote sensing ecological index
ecological quality
