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机构地区:[1]国家测绘地理信息局第一航测遥感院,陕西西安710054 [2]陕西师范大学,陕西西安710062
出 处:《地理空间信息》2017年第3期72-73,80,共3页Geospatial Information
基 金:国家社科基金重大资助项目(14ZDB031)
摘 要:以铜川市为例,利用主成分分析原理计算得到城市化和生态环境的综合水平指数;并在此基础上运用协整分析和VEC模型对1990~2009年间铜川市城市化与生态环境长期和短期变化的关系做了分析。结果表明,1城市化和生态环境存在唯一的长期稳定均衡关系,城市化指数每增加1%,生态环境指数会相应地减少1.18%;2在短期内,当前城市化水平主要受前一期的生态环境的抑制作用影响,当前生态环境主要受前一期生态环境的促进作用影响。This paper used the principal components analysis principle to calculate the synthesis indexes of the urbanization and the ecological environment at first.On the basis of it,the paper analyzed the long-term and the shortterm changes between the urbanization and the ecological environment in Tongchuan City from 1990 to 2009 by using the grainger causality analysis cointegration test and VEC model.The results show that(1)the urbanization and the ecological environment have only long-term stability balanced relations,if the urbanization index increases 1%,the ecological environment index reduces 1.18%correspondingly.(2)In the short-term,the current urbanization level is mainly influenced by the preceding issue of ecological environment,and the preceding issue of ecological environment has an inhibitory function for the current urbanization.The current ecological environment is mainly influenced by the preceding issue of ecological environment,and the preceding issue of ecological environment has a promotion function for the current ecological environment.
分 类 号:P208[天文地球—地图制图学与地理信息工程]
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