Spatial distribution and change of settlements at the middle part of the northern foot of the Tianshan Mountains and influencing factors from 1759 to 1949
LU Simin,, ZHANG Li,Northwest Institute of Historical Environment and Social-Economic Development, Shaanxi Normal University, Xi’an 710119, China
Abstract It is of great significance to explore the spatial evolution process of settlements in arid areas to reveal the land use change and the relationship between human and land in the historical period. This study examined the pattern of change of settlements in the Mulei-Qitai-Jimusar region of central Xinjiang at the northern foot of the Tianshan Mountains from 1759 to 1949 and its influencing factors by means of kernel density analysis, standard deviation ellipse, and river buffer analysis. The results show that: (1) From 1759 to 1949, settlements were mainly distributed below the slope of 10°, at the overflow zone of altitude 500~800 m and the low hills of 1100~1400 m. (2) Before 1865, the number of settlements increased and their distribution expanded; and after 1870, settlement density increased. (3) A variety of factors resulted in the formation of the settlement distribution pattern, among which natural factors are the fundamental ones that limit the distribution of settlements; policy and economic factors are also important factors that affect the growth rate and development direction of settlements. Keywords:mid and late Qing Dynasty;period of the Republic of China;spatiotemporal changes of settlement;oasis;middle part of the northern foot of the Tianshan Mountains
PDF (6201KB)元数据多维度评价相关文章导出EndNote|Ris|Bibtex收藏本文 本文引用格式 鲁思敏, 张莉. 1759—1949年天山北麓中部聚落空间演变及其影响因素. 资源科学[J], 2021, 43(5): 954-963 doi:10.18402/resci.2021.05.09 LU Simin, ZHANG Li. Spatial distribution and change of settlements at the middle part of the northern foot of the Tianshan Mountains and influencing factors from 1759 to 1949. RESOURCES SCIENCE[J], 2021, 43(5): 954-963 doi:10.18402/resci.2021.05.09
核密度估计法可以得到聚落密度变化的图示,揭示聚落空间分布的聚集性规律。核密度估计法(Kernel Density Analysis)是一种应用十分广泛的空间平滑方法,特别有利于对离散点的空间分布趋势进行呈现。其几何意义为:以某个样本点为中心,设定一个搜索半径,对落入搜索区的各要素点赋予不同的权重值,越靠近区域中心点,被赋予的权重越大。网格中心处的核密度为窗口范围内的密度和,计算公式如下[30,31]:
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