长三角多维城市化对PM2.5浓度的非线性影响及驱动机制
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郭向阳, 穆学青, 丁正山, 秦东丽
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Nonlinear effects and driving mechanism of multidimensional urbanization on PM2.5 concentrations in the Yangtze River Delta
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GUO Xiangyang, MU Xueqing, DING Zhengshan, QIN Dongli
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表4 多维城市化对PM2.5的非线性影响面板回归分析结果
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Tab. 4 Results of panel regression analysis of nonlinear effects of multidimensional urbanization on PM2.5
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| 自变量 | 经济城市化(E-URB） | | 人口城市化(P-URB) | | 土地城市化(L-URB) | | OLS | FE | SGMM | OLS | FE | SGMM | OLS | FE | SGMM | | 模型1 | 模型2 | 模型7 | 模型8 | 模型9 | 模型14 | 模型15 | 模型16 | 模型21 | | PM_2 | 0.805***
(291.050) | 0.585***
(55.620) | 0.690***
(75.470) | | 0.857***
(476.620) | 0.646***
(66.460) | 0.753***
(86.870) | | 0.818***
(320.880) | 0.717***
(99.490) | 0.742***
(109.320) | | lnURB | -0.102***
(-9.450) | -0.179***
(-17.790) | -10.262***
(-8.840) | | 0.168***
(12.730) | 0.067***
(14.710) | 0.095***
(4.670) | | 0.076***
(4.520) | 0.011**
(2.280) | 0.008***
(5.500) | | lnURB2 | 0.452***
(22.306) | 0.301***
(32.930) | 0.978***
(12.520) | | 0.355***
(10.250) | 0.309***
(10.220) | 0.315***
(6.240) | | 0.032***
(2.620) | 0.033***
(2.730) | 0.041***
(5.040) | | lnURB3 | -0.121***
(-3.336) | -0.101***
(-3.264) | -0.031***
(-9.328) | | | | | | | | | | lnPOP | 0.135***
(7.450) | 0.122***
(7.780) | 0.140***
(6.950) | | 0.098***
(5.760) | 0.095***
(6.480) | 0.025***
(4.220) | | 0.126***
(6.970) | 0.119***
(7.680) | 0.037***
(6.820) | | lnFDI | 0.068***
(5.430) | 0.090***
(8.110) | 0.061***
(7.790) | | 0.095***
(8.200) | 0.105***
(10.280) | 0.034***
(10.030) | | 0.078***
(6.360) | 0.094***
(8.640) | 0.032***
(10.190) | | lnIND | 0.206***
(2.950) | 0.231***
(3.730) | 0.229***
(7.100) | | 0.441***
(6.670) | 0.412***
(7.040) | 0.142***
(9.160) | | 0.234***
(3.320) | 0.256***
(4.100) | 0.132***
(7.150) | | lnER | -0.040***
(-5.320) | -0.040***
(-6.170) | -0.044***
(-7.360) | | -0.031***
(-4.390) | -0.033***
(-5.330) | -0.008***
(-3.680) | | -0.040***
(-5.310) | -0.039***
(-6.080) | -0.013***
(-4.150) | | _cons | 3.075***
(602.120) | -0.427***
(-4.370) | 6.561***
(3.400) | | 2.722***
(6.300) | 4.365***
(10.700) | 1.233***
(12.870) | | 0.701***
(57.960) | 0.693***
(49.430) | 1.661***
(13.120) | | AR(1) | 0.001 | 0.004 | 0.000 | | 0.005 | 0.003 | 0.000 | | 0.012 | 0.012 | 0.000 | | AR(2) | 0.125 | 0.138 | 0.202 | | 0.126 | 0.118 | 0.198 | | 0.128 | 0.146 | 0.233 | | Sargan test | 0.114 | 0.126 | 0.232 | | 0.142 | 0.121 | 0.236 | | 0.164 | 0.137 | 0.246 |
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