| 基于LUCC和夜间灯光辐射数据的张掖市甘州区人口空间分布建模 |
| |
| 引用本文： | 梁友嘉,徐中民.基于LUCC和夜间灯光辐射数据的张掖市甘州区人口空间分布建模[J].冰川冻土,2012,34(4):999-1006. |
| |
| 作者姓名： | 梁友嘉 徐中民 |
| |
| 作者单位： | 中国科学院寒区旱区环境与工程研究所内陆河流域生态水文重点试验室,甘肃兰州,730000;中国科学院寒区旱区环境与工程研究所内陆河流域生态水文重点试验室,甘肃兰州,730000 |
| |
| 基金项目： | 国家自然科学基金重大研究计划重点项目“黑河流域中游水-生态-经济模型综合研究”，国家自然科学基金项目 |
| |
| 摘 要： | 尽管近年来统计数据的生成技术有了很大提高,但可用的详细人口数据始终难以得到满足.在一些自然-人文要素耦合的建模研究中,如生态经济集成建模、环境和健康分析等都需要基于区域尺度的栅格人口分布建模方法.随着GIS和RS技术的发展,上述建模方法已有较大进步.利用GIS技术,基于夜间灯光辐射数据和LUCC在象元栅格水平上构建张掖市甘州区人口空间分布.首先对DM-SP夜间灯光辐射数据进行重采样,通过普通克里金插值获得灯光数据;然后与LUCC叠加分析,利用回归分析的方法获取研究区土地利用、灯光辐射指标和人口统计数据之间的定量关系,完成空间化.并在乡镇尺度上进行模型检验,模型总体的调整R2为0.88,标准误差为400,为下一步开展时空变化分析提供支持.
|
| 关 键 词： | 人口 GIS DMSP/OLS LUCC 空间建模 |
Modeling the Spatial Distribution of Population Based on Night Light Radiation and LUCC： A Case Study in Ganzhou District,Zhangye Municipality |
| |
| LIANG You-jia,XU Zhong-min.Modeling the Spatial Distribution of Population Based on Night Light Radiation and LUCC： A Case Study in Ganzhou District,Zhangye Municipality[J].Journal of Glaciology and Geocryology,2012,34(4):999-1006. |
| |
| Authors: | LIANG You-jia XU Zhong-min |
| |
| Institution: | (Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China) |
| |
| Abstract: | Spatial-temporal distributions of both physical and socioeconomic phenomena can be approximated by functions depended on location in a multi-dimensional space,such as multivariate scalar,vector or tensor fields.Collection of population data is problematic,because of various shortcomings in data collection.For many applications,including ecology economics modeling and environmental health analyses,methods are therefore needed to model population distribution at local level.In this paper,night light satellite imagery,census data and LUCC provide an alternative means for determining spatial distribution of population.Light emission data from DMSP satellites were first resampled and modeled by using Kriging methods to provide a 500 m resolution light emissions map.Then they were matched to LUCC classes over the area.Regression methods were used to determine the relationships between census population and LUCC area and light emissions.Regression analysis demonstrates that the modeling is good,with R2 equal to 0.88 and SE equal to 400.The next step of the study is to enhance available land cover and light emissions data,which will improve the capability of the modeling in the future. |
| |
| Keywords: | population GIS DMSP/OLS LUCC spatial modeling |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
