摘要
利用黄山市人口统计数据(2000年)及地形数据,就地形因子与人口空间分布的关系进行定量分析.结果表明:海拔、坡度和坡向对人口空间分布都有显著的影响.海拔的影响表现在海拔400m以内人口密度变化显著,海拔400m以上人口密度变化平缓,海拔与人口密度呈混合函数关系.坡度的影响表现在从0°到10°内人口密度显著递减,从10°到40°人口密度递减平缓,呈Inverse函数关系.坡向的影响表现在不同坡向上的人口密度有显著差异.在此基础上,通过建立基于海拔、坡度和坡向的地形因子指数模型,定量分析地形因子对人口分布的影响,结果表明地形指数与人口空间分布呈对数函数关系.
On the basis of census data of Huangshan City in 2000 and topographic data, this paper processed a quantitative analysis on the relationship between terrain factor and the spatial distribution of population , and the results showed that there are three factors which have remarkable impact on the spatial distribution of the population, namely, altitudes, aspect and slopes. The impact of altitudes shows that when altitudes whitin 400 m there are significant changes in population density. However, when altitudes exeeds 400 m, it shows gentle change in population density, altitudes and population density was compound function. The impacts of slope shows that within 0° to 10° the population density decreased significantly, but from 10° to 40° population density shows gentle declining, obviously the relationship between them are inverse function. In the end, the impacts of aspect are that in different slope population densities shows significant differences through the establishment the model of terrain index based on altitudes, slope and of aspect. This paper processed a quantitative analysis of terrain index on the impact of population distribution, and the results show that terrain index and spatial distribution of the population was logarithmic function relations.
出处
《安徽师范大学学报（自然科学版）》
CAS
2008年第5期488-492,共5页
Journal of Anhui Normal University(Natural Science)
基金
安徽师范大学地理信息系统特优强专业建设基金
关键词
地形因子
人口空间分布
定量分析
黄山市
topography factors
spatial distribution of population
quantitative analysis
Huangshan City
