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泸水市增强型不透水面指数的时空演变分析 被引量:1

Spatiotemporal evolution of impervious surface in Lushui city based on ENDISI
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摘要 针对边境地区的贫困县在我国扶贫攻坚政策的推进和“一带一路”合作倡议的实施下快速发展这一现象,该文以毗临边境的怒江傈僳族州泸水市为研究区,利用增强型不透水面指数(ENDISI)对泸水市2013—2021年不透水面进行了提取并对其时空演变进行了分析。结果表明:①ENDISI指数可以较好地实现对高山峡谷地区的不透水面提取;②在2013—2021年,泸水市不透水面共增长了60.18%,实现了较大幅度增长,其下辖各乡镇不透水面均有显著增长;③通过标准差椭圆分析,泸水市不透水面扩张主要沿怒江沿线扩张,且具有明显的方向性。 The poverty-stricken counties in border areas is developing rapidly in the context of the nation’s poverty alleviation and the implementation of Belt and Road Intitiative.In views of this phenomenon,this paper took Lushui City of the Nujiang Lisu Autonomous Prefecture,adjacent to the border as the research area,and the enhanced normalized difference impervious surface index(ENDISI)was used to extract the impervious surface of Lushui city from 2013 to 2021,and its temporal and spatial evolution was analyzed.According to findings:①impervious surfaces in alpine and canyon areas could be well extracted with the help of ENDISI index;②From 2013 to 2021,the impervious surface of Lushui city increased by 60.18%and achieved a significant increase,and the impervious surface of all villages and towns under its jurisdiction increased significantly;③Through the analysis of elliptic standard deviation,the impervious surface in Lushui city had been expanded primarily along the Nujiang River,featuring significant directionality.
作者 李益敏 吴博闻 刘师旖 李盈盈 刘心知 LI Yimin;WU Bowen;LIU Shiyi;LI Yingying;LIU Xinzhi(School of Earth Sciences,Yunnan University,Kunming 650500,China;Research Center of Domestic High-resolutellite Remote Sensing Geological Engineering,Kunming 650500,China)
出处 《测绘科学》 CSCD 北大核心 2022年第5期144-149,共6页 Science of Surveying and Mapping
基金 国家自然科学基金项目(41161070) 云南大学大湄公河次区域气候变化研究省创新团队项目(2019HC027)
关键词 不透水面 高山峡谷地区 增强型不透水面指数(ENDISI) 时序分析 impervious surface aipine and canyon areas enhanced normalized difference impervious surface index(ENDISI) time series analysis
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