基于NDVI数据的宝鸡市和西安市植被覆盖情况对比分析

Comparative analysis of vegetation cover in Baoji city and Xi’an city based on NDVI data

植被指示着区域小范围内的气候及环境变化,研究植被覆盖情况对于全面分析区域发展至关重要。文章以陆地卫星遥感作为源数据,利用像元二分法,对2018年宝鸡、西安两市的植被覆盖度的空间和数量特征进行定量化研究。结果表明:宝鸡市整体植被覆盖优于西安市;两市的植被覆盖空间分布都以中高植被覆盖为主,并且分布在山区,城区植被稀疏。为此,必须加强区域生态环境建设,促进区际协同发展。

Vegetation indicates climate and environmental changes in a small area, so it is very important to study vegetation cover for a comprehensive analysis of regional development. In this paper, the spatial and quantitative characteristics of vegetation coverage in Baoji and Xi’an in 2018 were quantitatively studied with landsat remote sensing as the source data and pixel dichotomy. The results showed that the vegetation coverage in Baoji was better than that in Xi’an. The spatial distribution of vegetation cover in the two cities is mainly medium to high vegetation cover, which is distributed in mountainous areas and sparse in urban areas. Therefore, it is necessary to strengthen regional ecological environment construction and promote inter-regional coordinated development.