PROGRESS IN GEOGRAPHY ›› 2021, Vol. 40 ›› Issue (12): 1999-2010.doi: 10.18306/dlkxjz.2021.12.002
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WANG Rui1(), ZHANG He1, QIANG Wenli2, LI Fan2, PENG Jingyi1
Received:
2021-01-18
Revised:
2021-05-16
Online:
2021-12-28
Published:
2021-12-24
Supported by:
WANG Rui, ZHANG He, QIANG Wenli, LI Fan, PENG Jingyi. Spatial characteristics and influencing factors of carbon emissions in county-level cities of China based on urbanization[J].PROGRESS IN GEOGRAPHY, 2021, 40(12): 1999-2010.
Tab.1
Urbanization indicators of county-level cities in China and their descriptive statistics
系统 | 变量指标 | 释义(单位) | 均值 | 标准差 | 最小值 | 最大值 |
---|---|---|---|---|---|---|
人口 城镇化 | 人口规模(UP) | 城镇人口数量(万人) | 9.74 | 8.64 | 7.50E-3 | 81.92 |
城镇化率(UR) | 城镇人口占总人口比例(%) | 20.63 | 14.09 | 0.28 | 99.60 | |
人口集中度(UPP) | 县城区人口占总人口比例(%) | 24.80 | 12.12 | 2.14 | 98.89 | |
人口密度(PI) | 单位建设用地面积常住人口数量(万人/km2) | 1.48 | 1.91 | 0.01 | 14.60 | |
经济 城镇化 | 经济总量(GDP) | 县域国内生产总值数量(亿元) | 159.42 | 161.17 | 2.16 | 3080.02 |
经济结构(RSF) | 二产增加值与一产增加值比值 | 3.98 | 6.15 | 0.07 | 99.69 | |
经济密度(PCGDP) | 人均国内生产总值(万元/人) | 3.63 | 3.68 | 0.55 | 46.16 | |
土地 城镇化 | 土地规模(BUA) | 建设用地总规模(km2) | 75.38 | 78.46 | 2.00 | 563.00 |
土地集中度(PULBL) | 城区建设用地占总建设用地比例(%) | 15.08 | 19.59 | 2.20E-4 | 99.18 | |
区域 发展 | 经济分区(EGD) | 东部地区、中部地区和西部地区 | — | — | — | — |
所在市经济发展程度(REL) | 县级城市所在市人均国内生产总值(万元/人) | 4.14 | 2.41 | 1.01 | 20.56 |
Tab.2
Results of interaction of the influencing factors of total carbon emissions
两两交互 | 交互值 | 交互结果 | 两两交互 | 交互值 | 交互结果 |
---|---|---|---|---|---|
GDP∩RSF | 0.42 | 非线性增强 | GDP∩EGD | 0.28 | 非线性增强 |
PCGDP∩PULBL | 0.41 | 非线性增强 | UR∩GDP | 0.27 | 非线性增强 |
GDP∩PCGDP | 0.37 | 非线性增强 | GDP∩REL | 0.26 | 非线性增强 |
GDP∩PULBL | 0.37 | 非线性增强 | GDP∩BUA | 0.25 | 非线性增强 |
RSF∩PCGDP | 0.36 | 非线性增强 | UP∩GDP | 0.24 | 非线性增强 |
PCGDP∩REL | 0.35 | 非线性增强 | UPP∩GDP | 0.24 | 非线性增强 |
UP∩PCGDP | 0.34 | 非线性增强 | UP∩UR | 0.23 | 非线性增强 |
UR∩PCGDP | 0.33 | 非线性增强 | RSF∩BUA | 0.21 | 非线性增强 |
PCGDP∩BUA | 0.30 | 非线性增强 | PI∩GDP | 0.20 | 非线性增强 |
RSF∩REL | 0.29 | 非线性增强 | BUA∩REL | 0.20 | 非线性增强 |
UPP∩PCGDP | 0.28 | 非线性增强 | PULBL∩REL | 0.20 | 非线性增强 |
Tab.3
Results of detection of total carbon emission factors in different regions
地区 | 因子探测 | UP | UR | UPP | PI | GDP | RSF | PCGDP | BUA | PULBL |
---|---|---|---|---|---|---|---|---|---|---|
东部 | q值 | 0.038 | 0.016 | 0.074 | 0.037 | 0.151 | 0.106 | 0.142 | 0.109 | 0.036 |
P值 | 0.006 | 0.630 | 0.026 | 0.067 | <0.001 | <0.001 | <0.001 | <0.001 | 0.120 | |
中部 | q值 | 0.023 | 0.014 | 0.025 | 0.007 | 0.102 | 0.074 | 0.069 | 0.050 | 0.117 |
P值 | 0.060 | 0.575 | 0.658 | 0.491 | <0.001 | <0.001 | <0.001 | 0.005 | <0.001 | |
西部 | q值 | 0.021 | 0.041 | 0.038 | 0.060 | 0.376 | 0.031 | 0.185 | 0.135 | 0.049 |
P值 | 0.082 | 0.004 | 0.005 | <0.001 | <0.001 | 0.019 | <0.001 | <0.001 | 0.005 |
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