中国粮食生产空间关联网络的结构特征及其形成机制
冯颖, 侯孟阳, 姚顺波

Structural characteristics and formation mechanism of spatial correlation network of grain production in China
FENG Ying, HOU Mengyang, YAO Shunbo
表5 中国粮食生产空间关联关系的驱动因素回归结果
Tab.5 Regression results of the factors driving the spatial correlation network of China's grain production
变量 1996 2000 2004 2008 2012 2015 2018 均值
Distance 0.2894**
(0.977)		 0.1839**
(0.945)		 0.2071**
(0.906)		 0.2268**
(0.927)		 0.2086**
(0.893)		 0.1891**
(0.886)		 0.2824**
(0.901)		 0.5662***
(0.956)
Pgdp 0.0476***
(1.000)		 0.0701***
(1.000)		 0.1086***
(1.000)		 0.0488***
(1.000)		 0.0584***
(1.000)		 0.0532***
(1.000)		 0.1337**
(1.000)		 0.1134**
(1.000)
Indus -0.0074
(1.000)		 -0.0209
(0.138)		 -0.1106
(1.000)		 -0.0289
(0.037)		 -0.0232
(1.000)		 0.0072
(0.970)		 0.0117
(1.000)		 0.4111
(0.167)
Labor 0.0267***
(0.416)		 0.0473***
(0.638)		 0.0348***
(0.661)		 0.0326***
(0.839)		 0.0373***
(0.928)		 0.0301***
(0.996)		 0.0353***
(0.827)		 0.0631***
(0.697)
Mech 0.0468***
(1.000)		 0.0167***
(1.000)		 0.0489***
(1.000)		 0.0017***
(1.000)		 0.0049***
(1.000)		 0.0083***
(1.000)		 0.0748***
(0.283)		 0.1869***
(1.000)
Land 0.0529***
(1.000)		 0.0403***
(1.000)		 0.0381***
(1.000)		 0.0474**
(1.000)		 0.0274**
(0.388)		 0.0266**
(1.000)		 0.0141***
(0.493)		 0.1148***
(1.000)
Temp -0.0659
(0.000)		 -0.1109
(0.000)		 -0.1505
(0.057)		 -0.0659
(0.283)		 -0.1001
(0.188)		 -0.0966
(0.195)		 0.0632
(0.193)		 -0.2154
(0.205)
Prec -0.0241***
(0.132)		 -0.0273***
(0.422)		 0.0063***
(0.493)		 -0.0603***
(0.321)		 -0.0369***
(0.328)		 -0.0387***
(0.541)		 0.0746***
(0.434)		 -0.2922***
(0.609)
Sun -0.0541***
(0.243)		 -0.0487***
(0.231)		 -0.0968***
(0.146)		 -0.0452***
(0.295)		 -0.0508***
(0.265)		 -0.0584***
(0.287)		 0.0479***
(0.338)		 -0.1373***
(0.325)
R2 0.325 0.304 0.383 0.418 0.419 0.421 0.411 0.515
Adj-R2 0.316 0.295 0.374 0.409 0.413 0.416 0.404 0.510
P值 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
观察值 870 870 870 870 870 870 870 870
随机置换次数 5000 5000 5000 5000 5000 5000 5000 5000