The Study on Ecological Environments Safety in Chongqing One Hour Economic Circle Region

With the rapid development of economy, the conflict between landuse and ecology environment tends to be more and more intense .In this paper, environment quality of "Chongqing one hour economic circle" was given detailed evaluation in quantitative way with AHP and PSR in 2000 and 2006. Study results show that as a whole, some districts in the West Chongqing region such as Tongnan, Tongliang, Dazu, Bishan, Yongchuan and Rongchang which was in a lower level of ecological environment, but the district of Fuling was in a high level. It shows that within two years, areas that were ranked as excellent and good accounted for 62.56% and 60.96% respectively. Form 2000 to 2006, the overall quality of the ecological environment of the area was clearly declining, significant deterioration area ratio reached 31.71%, and significantly change good regional area ratio was only 5.24%. The dropped ecological environment of research regional area ratio reached 59.72% and the increased ecological environment of the region area was only 27.02%. Regional changes in the quality of the ecological environment had obvious spatial difference. Most significant deterioration of regional distributed in the southwest of Chongqing where belongs to regional of Cheng-Yu Traffic Route and the large parts of the capital city.