洛阳市中心城区景观格局时空梯度分析
Spatial and Temporal Gradient Analysis of Landscape Pattern in Central Urban Area of Luoyang City
刘盛源 1孙杰 1王燕飞 1王江丽 1桑鹏辉 2白萨日娜 3谢海玲3
作者信息
- 1. 河南科技大学 土木建筑学院,河南 洛阳 471000
- 2. 睢县园林绿化中心,河南 商丘 476000
- 3. 内蒙古蒙农盛林农林发展有限公司,内蒙古 呼和浩特 010000
- 折叠
摘要
以洛阳市中心城区为研究对象,采用景观指数和梯度分析相结合的方法,以近15 年城区遥感影像数据为依据,以洛河为中心,采用GIS软件进行图像处理,分别向洛河南北两岸构建3km间隔缓冲带,分析洛阳市中心城区景观格局时空动态变化和梯度变化特征.结果表明,近 15 年来在城市化的不断推进下,各类型斑块面积占比有显著变化,景观格局结构不断转变;各类型斑块的时空梯度特征差异明显,洛河南北两岸在不同的城市建设力度下表现出不同的水平特点;景观格局逐渐向破碎化、异质化方向发展,城市化过程和人为干扰是影响景观格局梯度变化特征差异的重要因素.
Abstract
Taking the central urban area of Luoyang City as the research object,the method of combining landscape index and gradient analysis was adopted.Based on the remote sensing image data of the urban area in recent 15 years,the Luohe River was taken as the center,and GIS software was used for image processing,to build a 3 km interval buffer zone to the north and south sides of the Luohe River,and ana-lyze the spatial-temporal dynamic changes and gradient changes of the landscape pattern in the central urban area of Luoyang.The results showed that with the continuous advancement of urbanization in recent 15 years,the proportion of various types of patch areas had significantly changed,and the landscape pat-tern structure was also constantly changing;the spatial-temporal gradient characteristics of various types of patches differed significantly,and the north and south sides of the Luohe River exhibited different lev-els of characteristics under different urban construction efforts;the landscape pattern was gradually devel-oping towards fragmentation and heterogeneity,and the process of urbanization and human interference were important factors affecting the differences in gradient changes of landscape pattern.
关键词
景观格局/梯度分析/景观指数/景观破碎化/洛阳市中心城区Key words
landscape pattern/gradient analysis/landscape index/landscape fragmentation/central ur-ban area of Luoyang City引用本文复制引用
出版年
2024
NETL
NSTL
万方数据