首页|泉州市城镇化建设对植被覆盖影响的遥感分析

泉州市城镇化建设对植被覆盖影响的遥感分析

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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NDBI(normalized difference built-up index)和归一化植被指数NDVI(normalized difference vegetation index).结果表明:2013 至 2021 年间,泉州市NDBI均值由-0.27 增至-0.24;NDVI均值由 0.64 减小到 0.60,NDVI下降的地表占比为 11.80%,而增大的占比为4.59%,NDVI下降的区域大部分位于西北地区和东部核心城区附近;NDBI与NDVI呈负相关关系,2021 年NDBI对NDVI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NDVI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.
Remote Sensing Analysis of the Impact of Urbanization Construction on Vegetation Cover in Quanzhou City
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 NDBI(Normalized Difference Built-up Index)and normalized vegetation index NDVI(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 NDBI in Quanzhou City increased from-0.27 to-0.24;The average NDVI decreased from 0.64 to 0.60,with a surface area accounting for 11.80%of NDVI decline and an increase of 4.59%,the majority of NDVI decline areas are located near the northwest and eastern core urban areas;There is a negative correlation between NDBI and NDVI,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.

urbanization constructionnormalized difference built-up indexnormalized difference vegetation indexsatellite remote sensingregression analysis

程潇、林珏琪、徐学闯、郑俊鸣

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莆田学院 环境与生物工程学院,福建 莆田 351100

莆田学院 土木工程学院,福建 莆田 351131

福建省海岛资源生态监测与保护利用重点实验室,福建 平潭 350400

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

福建省自然科学基金资助项目福建省社会科学基金资助项目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

2023J011001FJ2022C0722022ZD09

2024

莆田学院学报
莆田学院

莆田学院学报

影响因子：0.239
ISSN：1672-4143
年,卷(期)：2024.31(5)