摘要
为探究泉州市建筑面积扩张与植被覆盖在时空尺度上的交互响应情况,基于2013年和2021年2个时期的Landsat8 OLI卫星遥感数据,计算泉州市归一化建筑指数N_(DBI)(normalized difference built-up index)和归一化植被指数N_(DVI)(normalized difference vegetation index)。结果表明:2013至2021年间,泉州市N_(DBI)均值由-0.27增至-0.24;N_(DVI)均值由0.64减小到0.60,N_(DVI)下降的地表占比为11.80%,而增大的占比为4.59%,N_(DVI)下降的区域大部分位于西北地区和东部核心城区附近;N_(DBI)与N_(DVI)呈负相关关系,2021年N_(DBI)对N_(DVI)的影响程度较2013年更大。建筑用地面积增加的同时没有对造成的植被生态问题进行充分修复,导致N_(DVI)下降的区域占比较大;在今后应注重城镇绿地保护,合理开发建设用地。
In order to explore the interactive response of construction area expansion and vegetation coverage on the space-time scale in Quanzhou City,normalized building index N_(DBI)(Normalized Difference Built-up Index)and normalized vegetation index N_(DVI)(Normalized Difference Vegetation Index)of Quanzhou are calculated,based on the Landsat8 OLI satellite remote sensing data in 2013 and 2021.The results show that from 2013 to 2021,the average N_(DBI) in Quanzhou City increased from-0.27 to-0.24;The average N_(DVI) decreased from 0.64 to 0.60,with a surface area accounting for 11.80%of N_(DVI) decline and an increase of 4.59%,the majority of N_(DVI) decline areas are located near the northwest and eastern core urban areas;There is a negative correlation between N_(DBI) and N_(DVI),and the impact of building index on vegetation index is greater in 2021 than in 2013.While the construction land area has increased,the vegetation ecological problems caused have not been fully repaired,resulting in a relatively large proportion of areas with a decrease in vegetation index;In the future,attention should be paid to the protection of urban green spaces,rational development and construction of land.
作者
程潇
林珏琪
徐学闯
郑俊鸣
CHENG Xiao;LIN Jueqi;XU Xuechuang;ZHENG Junming(School of Environmental and Biological Engineering,Putian University,Putian Fujian 351100,China;School of Civil Engineering,Putian University,Putian Fujian 351131,China;Fujian Provincial Key Laboratory of Ecological Monitoring and Conservation of Island Resources,Pingtan Fujian 350400,China)
出处
《莆田学院学报》
2024年第5期91-97,108,共8页
Journal of putian University
基金
福建省自然科学基金资助项目(2023J011001)
福建省社会科学基金资助项目(FJ2022C072)
福建省海岛资源生态监测与保护利用重点实验室开放基金课题(2022ZD09)。
关键词
城镇化建设
归一化建筑指数
归一化植被指数
卫星遥感
回归分析
urbanization construction
normalized difference built-up index
normalized difference vegetation index
satellite remote sensing
regression analysis
