期刊论文

Urban spatial expansion and its impact on vegetation cover change in Putian city

中文

中南林业科技大学学报

1673-923X

2019

39

4

66-71

10.14067/j.cnki.1673-923x.2019.04.012

国家自然科学基金项目（31570627）；

本校为其他机构

分析城市空间扩展和植被覆盖指数变化及其质量之间的关系,可以为保护城市生态环境及在大空间尺度上为城市植被景观提升提供指导。以遥感成像技术为基础,通过提取目标区域卫星影像对应的建筑物和植被特征光谱,通过对多年特定光谱进行建模运算,即可得出城市空间拓展与植被覆盖指数之间的关系;以莆田市为例,利用Landsat卫星影像提取建筑指数NDBI和植被指数NDVI对该市2000、2010和2016年的城市空间扩展及其对植被覆盖变化的影响进行定量研究。结果表明:在16年间,莆田市城市建筑用地面积占比由22.70%增至28.84%,其中前期2000—2010年建筑用地面积占比增加了2.04%,而后期2010—2016年增加4.10%;植被覆...

The analysis of the relationship between urban spatial expansion and vegetation cover index change (and vegetation cover quality) can provide a guidance for protecting urban ecological environment and improving urban vegetation landscape on a large spatial scale. Based on remote sensing imaging technology, By extracting the characteristic spectra of buildings and vegetation corresponding to satellite images in the target area, and by modeling and calculating the specific spectra for many years, the relationship between urban spatial expansion and vegetation cover index can be obtained. Taking ...