Ecological environment change in 5 · 12 earthquake disaster area
In this paper, remote sensing images acquired from different phases as information source were used to estimate the ecological environment change in 5 ?12 earthquake disaster area The index appraisal system was founded, and the related changes of ecological sensitive factors were collected. Thus the quality grade of the regional ecological environment can be valued by AHP to ascertain the weights of estimating factors. The results showed that earthquake, secondary disasters and post-disaster reconstruction have damaged Beichuan ecological environment to some extent (espically old county area in south-east and the new town of Beichuan County).
RS and GISecological environmentinformation extractionevaluation
NETL
NSTL
万方数据
维普
