莆田市城区生态环境评价研究

以LandsatTM/ETM＋卫星影像为数据源,运用遥感生态指数（RSEI）对1994年、2003年、2009年莆田市城区的生态环境质量进行评价,并对生态环境变化进行动态分析.研究表明,1994年-2009年生态环境呈下降趋势,但下降较为缓慢,生态环境并未遭到显著破坏.生态环境变好与变差的面积相差不多,但变差中级差为2的面积比重相对较大,而变差和变好中级差为3、4的面积所占的比重很小.

Ecological Environment Assessment of Putian City

Based on satellite image from LandsatTM/ETM ＋,this study applies the remote sensing based ecological index （RSEI） to evaluate monitoring data of 1994,2003,2009 to evaluate the ecological environment of Putian city and to analyze the variation of ecological environment from 1994 to 2009.The result shows that the ecological environment is on the decline,but at a relatively slow speed.The ecological environment was not significantly damaged.The area of ecological environment changed for the better and worse is similar,but the percentage of area for 2 level worse is relatively large.The percentage of area for 3 level and 4 level is very small.