MULTIPLE FACTORS-BASED REMOTE SENSING EVALUATION OF ECOLOGICAL ENVIRONMENT IN FUZHOU
JIANG Zhen-lan1, SHA Jin-ming2, YANG Wu-nian3
1. Department of Geography, Fujian Minjiang College, Fuzhou 350011, China;
2. Institute of Geography, Fujian Normal University, Fuzhou 350007, China;
3. Remote Sensing Research Institute, Chengdu University of Technology, Chengdu 610001, China
With the support of ENVI and based on TM satellite RS data, the authors extracted the indicators of the ecological environment of Fuzhou city, which include vegetation, heat, humidity and brightness. The altitude and slope data obtained with the GIS method and demonstrated in the lattice form were converted by the ERDAS method into the data recognizable in ENVI. The data in the new form were then combined with the extracted ecological environment indictors by way of projection to form comprehensive images. Then the linear regression method was adopted to identify the proportions of such factors as vegetation, moisture, heat, soil and terrain. Finally an RS-based model was established to evaluate the vegetation ecological environment of Fuzhou city.
2004, Vol. 16 
