晋江市生态环境动态分析

利用多时相的TM卫星影像及相关资料,建立了晋江市生态环境的分类系统,得到相应的晋江市生态环境类型图,并构建生态环境动态变化的空间分析模型,测算结果表明:在这一监测期间,晋江市生态环境类型间的相互转化异常激烈;城区空间变化亦较为明显,分为东北发展区、西南发展区和中部新生区3个变化区。

Eco-environmental Dynamics of Jinjiang City

Based on multi-temporal remote sensing images of Jinjiang city in Fujian province acquired in 1988 and 2001,together with auxiliary data and geo-knowledge，we establish the formation characteristics and the classification system of the eco-environment in Jinjiang city. By interpreting the Thematic Map of ecoenviron-ment in this area and analyzing the current situation of Jinjiang city’s land use,we then get two ecoenvironmental maps in two different periods. Combined with the analysis of the quantity of eco-environment,characteristics of their distribution and the rule of their dynamic changes,we establish the spatial and temporal analysis model for measuring the rate of ecoenvironmental changes. In conclusion,the paper points out that the changes of two eco-environments in this area are vigorous,and the settlements of urban and rural eco-environment have increased greatly,while the area of eco-environment in platform dryland decreases drastically. And the obviously changing city space could be divided into three areas: the northeast developing area,the southwest developing area and the central newly developed area. In the northeast and southwest developing areas,their development trends radiate along the transportation lines. But the central newly developed area has changed as the hub shapes outwardly.