生态科学2024，Vol.43Issue(1)：124-133,10.DOI:10.14108/j.cnki.1008-8873.2024.01.015
厦漳泉新兴都市区生态质量遥感评价
Remote sensing-based study on the urban ecological quality of the emerging Xiamen-Zhangzhou-Quanzhou metropolitan area
摘要
Abstract
Owing to the complex,potentially nonlinear relationship between urban ecological systems and biophysical surface components in metropolitan areas,selecting suitable quantitative models to evaluate their urban ecological quality is not always clear.The Xiamen-Zhangzhou-Quanzhou metropolitan area was taken as an example.Eight ecological indicators,including NDBSI,RD,La,NDVI,ECI,W,LST,and V,were integrated into a new model named the Urban Remote Sensing Ecological Quality Index(UEQ)using Principal Component Analysis.The UEQ was used to quantitatively evaluate the ecological quality of the emerging Xiamen-Zhangzhou-Quanzhou metropolitan area.The quantitative relationship between UEQ at different levels and landscape indices was analyzed.Results showed that the Xiamen-Zhangzhou-Quanzhou metropolitan area had a mean ecological quality value of 0.558.Comparing the eight indices within the UEQ,the NDVI,ECI,W,and V indices positively affected the ecology,while the NDBSI,RD,La,and LST indices had a negative effect.It had high NDBSI,La,and LST values and low V values.The other four indicators had a low contribution to UEQ results.According to the spatial distribution of the UEQ,the ecological quality value in the western region of the Xiamen-Zhangzhou-Quanzhou metropolitan area was generally higher than that in the east region.The eastern urban center,covered by a high ratio of impervious surfaces and a low ratio of vegetation,had low ecological connectivity between the ecological land patches,resulting in a lower ecological quality value of 0.212 than that of the whole study area.The western mountain conservation belt had high NDVI and ECI values,which helped reach a higher ecological quality value of 0.104 than the whole study area.The ecological quality of the region with small and dispersive impervious surface patches and low intra-patch connectivity was better than that with large and aggregate impervious surface patches.关键词
厦漳泉都市区/城市生态评价遥感指数UEQ/生态质量/地表空间格局/遥感Key words
Xiamen-Zhangzhou-Quanzhou metropolitan area/urban remote sensing ecological quality index(UEQ)/ecological quality/landscape/remote sensing分类
信息技术与安全科学引用本文复制引用
王美雅..厦漳泉新兴都市区生态质量遥感评价[J].生态科学,2024,43(1):124-133,10.基金项目
福建省自然科学基金面上项目(2022J01918) （2022J01918）
教育部人文社科青年基金(22YJC630139) （22YJC630139）
福建省创新战略研究项目(2020R0155) （2020R0155）
国家自然科学基金青年基金项目(41601012) （41601012）
