摘要
城市景观格局已经成为城市土地利用、生态演变的重要研究领域。以斑块—廊道—基质为代表的景观生态学派"空间语言"成为其主要定性描述方法。近年来,有关景观格局动态的定量测评成为热点,浮现了大量景观模式的描述指标,但在研究方法上并未有新的突破。本文在评述城市景观格局既有研究方法的基础上,引入一种建立在RS/GIS平台基础上的"总体性特征—梯度性特征"两步骤的城市景观格局时空演变综合定量测评方法,并以西安都市圈为例,进行了实证研究,结果表明该方法能够较直接地发掘城市景观格局时空演变的原因。
The study on urban landscape pattern has become an important field of urban land use and ecological change. The widely accepted Patch-Corridor-Matrix model is generally used in the qualitative description of landscape pattern. Recently, quantitative evaluation on urban landscape dynamics is becoming a hot spot in research. By making a cdtical review on existing research methods of landscape pattern, a new approach based on RS/GIS is put forward in this paper, comprising two steps, ＂General pattern charactedstics - Gradient differentiation feature ＂, this method is applied to the case study of Xi＇an metropolitan area in China. The result shows that the method is effective on quantitative study of urban landscape.
出处
《规划师》
北大核心
2009年第3期70-74,共5页
Planners
基金
国家自然科学基金项目(40471058)
国家985二期(城市化与城市科学平台)资助项目
关键词
景观格局
时空演变
GIS
西安都市圈
Landscape pattern, Spatio-temporal change, GIS, Xi＇an metropolitian area
