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沈阳地区过去30年环境风险时空格局的研究
引用本文:毕军,王华东.沈阳地区过去30年环境风险时空格局的研究[J].环境科学,1995(5):72-75.
作者姓名:毕军  王华东
作者单位:国家计委中国科学院地理研究所,北京师范大学环境科学研究所
摘    要:应用“风险频数”及相关指标对沈阳地区过去30年环境风险的时空格局进行了分析。结果表明:风险频数在1966—1977及1978—1991两个时段之间的分布存在极显著差异(t=-7.353,t0.01=2.807);过去30年环境风险空间分布格局没有显著变化,但各亚区之间风险频数存在显著差异;沈阳地区存在一批高风险企业,化工行业是风险最高行业。

关 键 词:沈阳地区  环境风险  时空格局  风险频数
收稿时间:1995/4/25 0:00:00

Temporal and Spatial Patterns of Environmental Risk Events in the Past 30 Years in Shenyang City
Bi Jun and Wang Huadong.Temporal and Spatial Patterns of Environmental Risk Events in the Past 30 Years in Shenyang City[J].Chinese Journal of Environmental Science,1995(5):72-75.
Authors:Bi Jun and Wang Huadong
Institution:Institute of Geography, Chinese Academy of Sciences, Beijing 100101;Institute of Environ. Sciences, Beijing Normal Univ., Beijing 100875
Abstract:The index of "risk frequency" and other relativeindices are used to analyze the temporal and spateal patterns of environmental risk events in thepast 30 yes in Shenyang city. The results showthat there existed an extremely significant variation in the risk frequency during the periods of1966-1977 and 1978-1979 (t=-7. 353, to.ol= 2. 807). During the past 30 years, there wasno significant variation in the spatial patterns ofthe evironmental risk, while the distribution ofenvironmental risk among the districts was extremely different. In Shenyang city, there existed a series of high-risk enterprises, and thechemical industry was of the highest risk.
Keywords:Shenyang  environmental risk  temporal and spatial patterns  risk frequency
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