基于景观生态学的人口空间数据适宜格网尺度研究——以山东省为例

Grid Size Suitability of Population Spatial Distribution in Shandong Province Based on Landscape Ecology

以山东省为研究区,在100m、200m、300m、400m、500m、600m、700m、800m、900m、1km 10个格网尺度人口格网数据的基础上,引入景观生态学的相关指数和方法,探索不同格网尺度表达人口空间分布的适宜性。结果表明:在用传统的基于土地利用/覆被的人口数据空间化方法进行人口空间化的过程中,并不是尺度越精细所能表达的信息越细致、完整,400m是一个人口尺度变化上的特征点,所反映的人口分布信息最细致且完整性好。由此可得,在进行山东省人口空间化的过程中,400m是一个比较适宜的尺度。

To study the suitability of different grid scale on presenting population spatial distribution, we would provide scientific basis for guiding production and application of spatial population data, use as reference for other types of spatiality statistical data,performing appropriate technical integration so as to build foundation for prompt production of spatial population data, and ultimately provide data support with high accuracy for joint research between the humanities and natural science, related government decision making, disaster prevention and cure, disaster assessment and so forth. This paper revealed the population space distribution characteristics with grid scales of 100 m,200 m,300 m,400 m,500 m,600 m,700 m,800 m,900 m and 1 km based on landscape ecology, and explored grid size suitability of population spatial distribution in the Shandong Province. The results show that 400 m grid scale is a feature scale. 400 m grid scale reflects the population distribution information is the most detailed and good integrity. It is showed that 400 m is a suitable scale of population spatial distribution in Shandong Province.