摘要
随着重庆市经济快速的发展,土地与生态环境的矛盾也越加尖锐。利用层次分析法,选择PSR(压力、状态、响应)指标模型对重庆市"一小时经济圈"2000和2006年的生态环境质量进行定量评价。结果发现:2000和2006年,整体上渝西地区的潼南、铜梁、大足、壁山、永川以及荣昌等区县生态环境都处于一个较差的水平,而涪陵均处于较高的水平。两年间研究区域生态质量均以优、良为主,所占面积比例分别为60.96%和62.56%;从2000年到2006年,研究区生态环境质量整体呈一个明显下降的趋势,显著变差的面积比例达到31.71%,而显著变好的区域面积比例仅有5.24%;研究区生态环境下降区域面积比例达到59.72%,而生态环境上升区域面积则仅有27.02%,生态环境质量变化区域具有明显的空间差异性,显著变差区域基本分布于渝西南地区,即成渝交通干线辐射区域及主城大部分地区。
With the rapid development of economy, the conflict between land-use 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 were 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. From 2000 to 2006,the overall quality of the ecological environment of the area was clearly declining, significant deterioration area ratio reached 31.71 %, and ratio of regional area converted into significant good was only 5.24%. The ratio of dropped ecological environment quality in research regional area reached 59.72% and the region area of increased ecological environment quality 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 large parts of the capital city and the southwest of Chongqing where belongs to regional of Cheng-Yu Traffic Route.
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2009年第6期568-573,共6页
Resources and Environment in the Yangtze Basin
基金
重庆市科委项目(2008CE0210)
