基于高分辨率卫星图像的株洲市绿地景观结构特征分析

城市绿地系统是城市生态系统的重要组成部分,对改善城市生态环境质量、提高人居生活水平、创造生态宜居型城市起着十分重要的作用(刘滨谊等,2002).为在有限的空间内合理规划布局城市绿地系统,需要在景观水平上研究城市绿地系统的结构特征,遥感和地理信息系统技术为该领域提供了有力的技术支持(肖笃宁等,2004).

Analysis of Landscape Structural Features of Zhuzhou Urban Greenland Based on Fine-Resolutioned Satellite Image

On the basis of investigating the current situation of the urban greenland system in Zhuzhou by utilizing 3S technology,author analyzed the landscape structural characteristics of the urban greenland system in Zhuzhou. The results showed the degree of fragmentation of landscape in Hetang District was the highest and the area of the biggest patch in Tianyuan District was smaller. The interior ratio in Central Square was the best, and the isolation in Yandi Square, Changjiang Square and Xiangshi Square were good. The connectivity of urban green system in Zhuzhou was relatively poor. The diversity index, evenness index and superiority were respectively 1.47, 0.57, 1.11 in Zhuzhou. Lusong District had the lowest diversity index, evenness index and the highest dominance. Some advices against above-mentioned problems were put foreward.