Resources Science ›› 2020, Vol. 42 ›› Issue (3): 474-485.doi: 10.18402/resci.2020.03.06
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LUO Jun1,2, SHI Peiji1(), ZHANG Xuebin1
Received:
2019-11-11
Revised:
2019-12-19
Online:
2020-03-25
Published:
2020-05-25
Contact:
SHI Peiji
E-mail:shipj@nwnu.edu.cn
LUO Jun, SHI Peiji, ZHANG Xuebin. Spatiotemporal characteristics of population distribution in the upper reaches of the Yellow River:A multi-dimensional approach in the Lanzhou-Xining urban agglomeration[J].Resources Science, 2020, 42(3): 474-485.
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Table 1
Unbalanced index of population distribution from 2010 to 2017"
年份 | 2010年 | 2011年 | 2012年 | 2013年 | 2014年 | 2015年 | 2016年 | 2017年 |
---|---|---|---|---|---|---|---|---|
基尼系数(G) | 0.6199 | 0.6199 | 0.6193 | 0.6207 | 0.6200 | 0.6275 | 0.6424 | 0.6397 |
非均衡指数(U) | 0.0088 | 0.0088 | 0.0088 | 0.0088 | 0.0088 | 0.0088 | 0.0090 | 0.0090 |
集中指数(C) | 0.4330 | 0.4330 | 0.4324 | 0.4330 | 0.4331 | 0.4397 | 0.4521 | 0.4476 |
Table 2
Population land consistency distribution type"
指数范围 | 类型 | 县域单元 |
---|---|---|
H< 0.5 | 土地极化型 | 海晏县、共和县、贵德县、贵南县、同仁县、尖扎县、景泰县 |
0.5≤ H< 0.8 | 土地超前型 | 永登县、循化县、化隆县、靖远县、湟源县、永靖县、皋兰县 |
0.8≤ H≤ 1.2 | 人地协调型 | 平川区、乐都区、互助县、榆中县、大通县 |
1.2<H≤ 2 | 人口超前型 | 安定区、平安区、渭源县、临洮县、湟中县、陇西县、民和县、东乡县、白银区 |
H >2 | 人口极化型 | 红古区、积石山县、西固区、七里河区、城中区、城北区、临夏市、安宁区、城东区、城西区、城关区 |
Table 3
Change of population with elevation and slope"
分级 | 高程范围/m | 高程分级面积占总面积比重/% | 坡度范围/° | 坡度分级面积占 总面积比重/% | 高程分级的人口密度/(人/km2) | 坡度分级的人口密度/(人/km2) | 高程分级的人口数量/人 | 坡度分级的人口数量/人 |
---|---|---|---|---|---|---|---|---|
I | ≤ 1800 | 11.63 | ≤ 3 | 8.95 | 254.83 | 130.55 | 2854351 | 1126516 |
II | (1800, 2100] | 16.65 | (3, 6] | 13.71 | 149.98 | 122.05 | 2408229 | 1614233 |
Ⅲ | (2100, 2400] | 15.31 | (6, 9] | 13.01 | 202.25 | 114.61 | 2982783 | 1438699 |
IV | (2400, 2750] | 10.77 | (9, 15] | 22.50 | 146.97 | 117.18 | 1524079 | 2542923 |
V | (2750, 3050] | 10.10 | (15, 21] | 16.67 | 71.52 | 125.67 | 695604 | 2021276 |
VI | (3050, 3300] | 11.89 | (21, 27] | 11.54 | 36.18 | 128.04 | 414297 | 1425341 |
Ⅶ | (3300, 3550] | 9.81 | (27, 35] | 8.91 | 35.06 | 114.75 | 331317 | 986391 |
Ⅷ | (3550, 3850] | 7.75 | (35, 43] | 3.65 | 35.53 | 109.91 | 265409 | 386773 |
Ⅸ | (3850, 4250] | 4.63 | (43, 50] | 0.91 | 32.24 | 104.82 | 143694 | 92346 |
Ⅹ | >4250 | 1.46 | >50 | 0.16 | 16.10 | 94.39 | 22637 | 1416 |
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