应用生态学报2017，Vol.28Issue(8)：2667-2676,10.DOI:10.13287/j.1001-9332.201708.008
京津冀地区的生态质量定量评价
Quantitative assessment of ecological quality in Beijing-Tianjin-Hebei urban megaregion,China
摘要
Abstract
The ecological quality symbolizes the capacity of sustainable development of regional economy and society,as well as the degree of stability and coordination between social production and human settlement environment.Therefore,how to quantitatively assess ecological quality and its change,as well as coordinate the relation between the ecological quality and urbanization,is becoming a hotspot of urban ecology.The Beijing-Tianjin-Hebei (BTH) urban megaregion,where urbanization developed rapidly and environmental problems became increasingly evident,was chosen as the study area.Then we calculated the ecological parameters including the vegetation fraction,biomass,and the percent cover of built-up land based on remote sensing data,and combined with vegetation fragmentation index,to develop a comprehensive index model of ecological quality based on RS indicators by using principal component analysis.The ecological quality and its dynamics in the BTH urban megaregion from 2000 to 2010 were quantitatively evaluated.The results showed that the ecological model constructed in this paper could be used to evaluate the ecological quality and change of city and region objectively and comprehensively.The index of ecological quality in BTH increased from 2.38 in 2000 to 2.84 in 2010,with a growth rate of 19.3％.The growth rate of 2000-2005 (12.2％) was higher than that of 2006-2010 (7.2％).Spatially,high values of the index were distributed in the north of the megaregion,while low values in the west and southeast.Ecological quality and its change varied greatly by cities.The ecological quality of Chengde was better than the other cities significantly,followed by Beijing,Qinhuangdao and Baoding,whereas Tianjin had the worst ecological quality.The ecological quality in Chengde,Beijing,Qinhuangdao and Baoding were higher than the average level of the entire BTH megaregion,while Langfang,Tianjin and Cangzhou were lower than the average level.Except for Tangshan,the ecological quality in all other cities was improved from 2000 to 2010.The ecological quality indices of Cangzhou and Hengshui were improved significantly,with growth rates of 520.5％ and 171.8％,respectively.关键词
京津冀城市群/生态质量指数/生态质量评价/遥感Key words
Beijing-Tianjin-Hebei (BTH) urban megaregion/ecological quality index/ecological quality assessment/remote sensing引用本文复制引用
王静,周伟奇,许开鹏,颜景理,李伟峰,韩立建..京津冀地区的生态质量定量评价[J].应用生态学报,2017,28(8):2667-2676,10.基金项目
本文由国家自然科学基金重大项目(41590841)、全国生态环境十年变化(2000-2010年)遥感调查与评估项目(STSN-12-01)和环境保护部专项(2110203)资助 This work was supported by the Major Project of the National Natural Science Foundation of China (41590841),the Chinese Ecosystem Assessment from 2000-2010 based on Remote Sensing (STSN-12-01) and the Special Project of Ministry of Environmental Protection (2110203). （41590841）
