检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:颜俊[1,2]
机构地区:[1]信阳师范学院城市与环境科学学院,河南信阳464000 [2]信阳师范学院淮河文明研究中心,河南信阳464000
出 处:《信阳师范学院学报(自然科学版)》2014年第4期525-528,533,共5页Journal of Xinyang Normal University(Natural Science Edition)
基 金:河南省政府决策研究招标课题(2012B593);河南省教育厅科技研究重点项目(13B170402);信阳师院博士科研启动基金项目
摘 要:以淮河流域为研究区域,以县域为研究单元,选取人口数及人口密度为研究指标,通过20世纪80年代以来淮河流域人口密度、不均衡指数、重心移动、偏移-分享分析及空间自相关分析等来研究人口空间格局及其演变趋势.结果表明:淮河流域人口增长速度在变慢,人口密度仍在全国平均人口密度的4倍以上,人口分布存在一定的空间关联性,在淮河各支流的中、上游县市区域形成人口集聚区域,人口呈不均衡分布状态且不均衡趋势加强,人口重心逐渐向东北方向迁移.Taking Huaihe river basin as the study area and county level as the research unit, selecting data of pop-ulation and population density of the Huaihe river basin since the 1980s as the research indicators, the spatial pattern and evolving trend were studied through the related analysis of population density, unbalanced index, population gravi-ty center model, shift-share analysis and spatial autocorrelation analysis. The results showed that the rate of population growth became slower;the population density was more than four times than the average of national’ s. There was cer-tain spatial relevance on population distribution;it formed population agglomeration area in the upstream counties of va-rious tributaries of the Huaihe river. The population distribution was imbalanced and such situation was enhanced. The population gravity center slowly moved to the east west.
分 类 号:K901.8[历史地理—人文地理学]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.15