快速城市化进程中广州市景观格局时空分异特征的研究  

Spatio-Temporal Variation of Landscape Patterns during Rapid Urbanization in Guangzhou City

作　　者：郭泺[1] 杜世宏[2] 薛达元[1] 江学顶[3] 

机构地区：[1]中央民族大学生命与环境科学学院,北京100081 [2]北京大学遥感与地理信息系统研究所,北京100871 [3]中山大学环境科学与工程学院,广州510275

出　　处：《北京大学学报（自然科学版）》2009年第1期129-136,共8页Acta Scientiarum Naturalium Universitatis Pekinensis

基　　金：国家科技支撑计划课题(07BAC03A08);国家民委重点项目(07ZY05);中央民族大学“111”计划资助

摘　　要：以广州市作为研究对象,利用1985,1990,1995,2000和2005年5期遥感影像,研究了广州市20年来景观空间格局的时空变化特征。结果表明:随着城市化的加速,广州市1985—2005年期间景观空间格局的复杂性总体上不断增加,但变化速率、强度和发展态势在全市范围和不同的行政区域内表现出一定的分异特征。1985—2005年期间广州市12个行政区由于规划发展目的不同,表现出不同的时空变化特点:城区、番禺和花都干扰强度和幅度大,且干扰因素和事件频繁;从化和增城干扰强度和幅度相对较小,且更多地表现为某一次的重大干扰痕迹。番禺受城市化过程和人类干扰主要发生在1990—2000年,花都的重大城市化过程主要发生在1985—1995年,增城和从化的景观变化主要发生在1990—2000年,而城区受城市化进程影响的趋势和整个研究区最相似,表现出多次多时段干扰的迹象和受城市化干扰程度大、城市化时间长、开始时间早的特点。Using 3S technique, surveying and statistical analysis, this study took landscape pattern changes of Guangzhou City as a case study. The study examined the relationship between the process of a typical rapid urbanization and landscape spatiotemporal patterns during the period from 1985 to 2005, and compared the landscape and class-level pattern indices in Guangzhou City. The results show that the complexity of landscape structure and the fragmentation of the landscape increase from 1985 to 2005, whereas, the intensity and tendency of the landscape changes varied during the four comparative periods： 1985-1990, 1990-1995, 1995-2000, and 2000-2005. It is a rapid development period from 1985 to 2005 in Guangzhou. Spatio-temporal landscape patterns of the ten districts are different due to different development and planning motives. The intensity and extent of disturbance is strong and happen frequently in Urban, Panyu and Huadu districts. Conghua and Zengcheng districts represent slight disturbance, and their urbanization process mainly take place during 1990-2000. Urbanization in urban begin early while it mainly happens after 1990 in Panyu and Huadu districts , showing the effect of frequent disturbance and severe intensity. The trend of urbanization in urban is similar to total study zone, showing frequent disturbance, multi-period and characteristics of long-term urbanization.

关 键 词：快速城市化 景观格局 时空变化 广州 

分 类 号：Q149[生物学—生态学]