城市化对区域景观演化的影响——以广州市天河区为例  

The Influence of Urbanization to Regional Landscape—a case study of Tianhe, Guangzhou

作　　者：李芳[1] 李贞[1] 

机构地区：[1]广州市中山大学城市与资源规划系,510275

出　　处：《中山大学研究生学刊（自然科学与医学版）》2000年第1期32-36,共5页Journal of the Graduates Sun YAT-SEN University(Natural Sciences.Medicine)

摘　　要：利用广州市天河区1984年及1995年遥感图像资料,计测景观中各种嵌块体的优势度、多样性、均匀性等指数,与该区城市化程度指标相比较,以了解城市化对区域景观演化的影响。通过比较不同年份的数值发现,从1984年到1995年间,该区景观多样性指数和均匀性指数均有所增加,而优势度的最大值也由1984年的农田变为1995年的城市居住用地。同时,尽管农田面积有所减少,但它仍决定着景观生态的类型,这些表明近年来由于城市化的影响,该区的景观由乡村景观向城市景观演化。The landscape type is influenced by the urbaniztion level, with the development of urban society, the landscape changes correspondingly. In Guangzhou city, the landscape evolution obeys the following rules: natural landscape→rural landscape→urban-rural dualized landscape→urban-rural integrated landscape→urban landscape. In this essay, we use the remote sensing images of Tianhe, Guangzhou city in 1984 and 1995, to calculate the dominance, diversity, and evenness of the landscape, and then compare the date of the two years in order to know how the urbanization affect the landscape. In 1984, Tianbe Area was the suburban area of Guangzhou, at that time agriculture was the economic foundation in this area, the landscape was still in the transition period between rural làndscape and urban-rural dualized landscape. During the period between 1984 and 1995, the economy developed rapidly in Guangzhou city, land became very short in the urban area, so it expanded to the suburban area and made the landscape evolve to the urban rural integrated landscape.

关 键 词：均匀性指数 多样性指数 优势度 广州市 天河区 区域景观演化 城市化 景观生态学 

分 类 号：Q149[生物学—生态学]