A GIS-based gradient analysis on landscape pattern of Tongzhou District of Beijing, China
The gradient variance and spatial stability associated with landscape pattern were investigated for fast urbanization area of Tongzhou District of Beijing by combining spatial network sampling technique, landscape metrics and gradient analysis. A newly integrated indicator, Landscape Stability Index (LSI) is established by combing related landscape metrics to reflect the potential landscape dynamics. The results shows that landscape change in Tongzhou exhibits distinctive spatial differences along transects from urban center to rural areas, characterized by higher fragmentations at urban fringes and newly urbanizing areas. In addition, the landscape stability index of Tongzhou is from 0.204 to 1, with mean value of 0.4436, indicating relatively low landscape stability level with intensive transformation and conversion of landscape and obvious spatial difference. The rapid landscape converting area (with low LSI value) consists of the arc-shaped area surrounding central Tongzhou city and its vertical zone along Beiyun River to southeastern direction.
fast urbanization landscape pattern landscape
Lixiao Zhang Zhifeng Yang Jing Liang Bin Chen
State Key Joint Laboratory of Environmental Simulation and Pollution Control,School of Environment,Beijing Normal University,Beijing 100875,China
国际会议
北京
英文
1-5
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）