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| 基于地形因素的秦巴山区人口-经济空间格局及其影响机制研究 | |
| 引用本文： | 敬博,李同昇,温伯清,成文浩.基于地形因素的秦巴山区人口-经济空间格局及其影响机制研究[J].地理科学,2020,40(5):793-803. |
| 作者姓名： | 敬博 李同昇 温伯清 成文浩 |
| 作者单位： | 1.西北大学城市与环境学院,陕西 西安 710127 2.西安建筑科技大学城市规划设计研究院,陕西 西安 710055 |
| 基金项目： | 国家自然科学基金项目(41771129) |
| 摘 要： | 地形是影响区域人口分布和社会经济发展的重要因素,尤其在山地区域其影响和约束作用更加明显。以秦巴山区为例,基于SRTM数据提取高程和地形起伏度,借助多种空间分析和地统计学方法,分多个尺度对人口、经济空间的格局和分异特征进行分析,重点从地形要素定量揭示其与人口、经济空间的相互关系和影响程度。研究表明：① 秦巴山区人口经济空间分异特征明显,Lorenz曲线和基尼系数结果显示,人口分布具有不均衡性,但不均衡程度低于全国水平,Moran's I指数结果说明人口、经济空间具有一定集聚特征,且在像元尺度下集聚程度更明显;②人口、GDP密度呈现外围热、内部冷的空间格局,通过像元尺度的空间要素密度分析发现人口、经济要素在垂直方向上的分异十分明显;③ 样带研究中人口、GDP密度与海拔的变化曲线呈反向相关,人口、经济在小尺度范围对地形有一定的适应性;④ 经济发展对地形条件依赖性更强,人口和村庄对地形的适应性更加明显;地形的垂直分异特征导致自然环境和区域发展条件的空间差异,进而影响着人口、经济的空间分布格局。 |
| 关 键 词： | 地形 人口-经济 秦巴山区 |
| 收稿时间： | 2019-05-13 |
| 修稿时间： | 2019-11-13 |
Population-Economy Spatial Pattern and Impact Mechanism of the Qinba Mountain Area Based on Topographic Factors |
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| Jing Bo,Li Tongsheng,Wen Boqing,Cheng Wenhao.Population-Economy Spatial Pattern and Impact Mechanism of the Qinba Mountain Area Based on Topographic Factors[J].Scientia Geographica Sinica,2020,40(5):793-803. | |
| Authors: | Jing Bo Li Tongsheng Wen Boqing Cheng Wenhao |
| Institution: | 1. College of Urban and Environmental Science, Northwest University, Xi’an 710127, Shaanxi, China 2. Institute of Urban Planning and Design, Xi’an University of Architecture and Technology,Xi’an 710055, Shaanxi,China |
| Abstract: | Topography is an important factor affecting regional population distribution and social and economic development, and its influence and restraint effect is more obvious especially in mountainous areas. This study takes Qinba Mountain area as an example to analyze the pattern and differentiation characteristics of population and economic space on multiple scales with the help of a variety of spatial analysis and geostatistics methods. Based on 90 m resolution SRTM data, it extracts elevation and relief amplitude, with an emphasis on quantitatively revealing the relationship and influence degree between terrain and environmental elements and the population and economic space. The results show that: 1) The population, village and economic density of Qinba Mountain area show a significant differentiation. The results of Lorenz curve and Gini coefficient show that the population distribution is unbalanced, but the unbalance degree is lower than the national level. Besides, the results of Moran's index show that population and economic space have certain agglomerating characteristics, and the degree of agglomeration is more obvious at the cell scale. 2) The density of population and GDP shows the spatial pattern of external heat and internal cooling, and it is found that the differentiation of population and economic factors in the vertical direction is obvious through the analysis of spatial element density in the cell scale. 3) The change curve of the density of population and GDP and elevation in sample belt research show a reverse correlated relationship, and the population and economy have a certain adaptability to terrain in small scale range. 4) Economic development is more dependent on terrain conditions, and the adaptability of population and villages to topography is more obvious; the vertical differentiation of topography leads to the spatial difference of natural environment and regional development conditions, and then affects the spatial distribution pattern of population and economy. |
| Keywords: | topography population-economy the Qinba mountain area |
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