基于区域城市化LUCC的人类生态过程定量研究——以上海市区典型城市化样带为例

借鉴流域研究的范例，根据上海市1987年、1995年和2003年3期Landsat5 TM遥感影像记录的土地利用／覆被数据和有关的社会经济统计数据，运用Rs和GIS技术在上海市中心西南城市边缘建立典型城市化样带。采用生态足迹法分析该样带内人类的生态供给与需求；提出一城市化区域人类生态过程的新研究方法，得出城市化过程中区域的人类生态质量指数与波动指数，并根据模型计算出的指数值，对样带区域总体及其中城乡区域在城市化中的人类生态状况进行了动态分析，以尝试对区域城市化中人类生态过程进行定量化研究。

A quantitative study on human eco-processes in the regional urbanization based on land use and cover change: a case study of a typical urbanization sample zone in Shanghai

We study the relationship between human eco-processes and urbanization in a typical urbanization sample zone (TUSZ) in the southwestern fringe of downtown Shanghai. A data set consisting of land use/land cover (created using three Landsat5 TM images of the area for 1987, 1995, and 2003) and additional socioeconomic statistics is created. To analyze the spatial-temporal dynamics of human ecological accommodation and consumption for the entire TUSZ and its urban and rural portions, we develop two new indices in this paper: human ecological quality index (I_ HEQ ) and human ecological fluctuation index (I_ HEF ). Several interesting conclusions about the human eco-processes in our study area can be made. First, in 1987, when the urbanization in Shanghai was in the industrialization stage, regional human ecological quality was low, mainly due to a policy that concentrated on production consumption and economic value but ignored life consumption and environmental and social values. During this period of time, a great difference of I_ HEQ between the urban and rural portions can be observed. Second, from 1987 to 2003, a dramatic increase of I_ HEQ can be observed. The I_ HEF value, however, was low and the fluctuation in the urban portion was stronger than in rural areas. Third, I_ HEF value reaches the highest during the period from 1995 to 2003, suggesting an improved human ecological quality. Fourth, the period from 1995 to 2003 also saw a relatively low I_ HEQ with an I_ HEF value that was 70 times higher than previous stages. This implies that human ecology fluctuates dramatically, with high instability, reflecting an incompatible relationship between human being and environment, and a sustainable improvement of human ecological quality faces severe pressure. Finally, eco-processes suggest that human beings are compelled to adapt to the environmental change (including nature, society and economics). With the development of urbanization, suburban and rural residents will need to gradually accept an urban life style, and their ecological quality may improve synchronously. The difference between urban and rural areas will disappear when I_ HEQ for the rural areas reaches a threshold. Rural residents are subsequently forced to become a part of the urban system due to the environmental change.