关键词: 人口增长, 生态系统服务流, 城市生态系统, 熵, 定量评估, 生态系统服务

Abstract: Studies on urban three-dimensional landscape are helpful to the development of landscape ecology at threedimensional scale, which can provide the scientific support for urban planning. Threedimensional information of buildings in Shenyang City was extracted from QuickBird imageries. Five indexes (average building height, landscape height standard deviation, floor area ratio, building shape coefficient and building coverage ratio) and spatial statistical analysis were used to study spatial landscape pattern characters at threedimensional scale. The results showed that bungalow and multistory buildings were the dominant architecture landscape types. Over midtall story buildings distributed in each district, but aggregated in Tiexi District. The different height buildings presented an aggregate distribution and a significant spatial positive correlation. Meanwhile, the different height buildings in different districts also presented an aggregate distribution in their corresponding districts. A significant difference happened between the values of building coverage ratio and floor area ratio in spatial distribution. The area proportion with high building coverage ratio and high floor area ratio had a relatively small proportion. Urban landuse intensity would have some space for improvement.

Key words: ecosystem services, quantitative assessment, ecosystem services flow, urban ecosystem, entropy, population increase