The Comparison and Modeling of the Driving Factors of Urban Expansion for Thirty-Five Big Cities in the Three Regions in China

Table 4

Urban expansion and driving factors in Eastern China.

Item	(1990–2010)	(1990–1995)	(1995–2000)	(2000–2005)	(2005–2010)
Population increment, POPI	0.2472	−0.0036	0.1344	−0.0602	0.3077
GDP increment, GDPI	−0.0439	0.1435	−0.1201	0.2312	0.0063
Investment increment in capital construction, IICC	−0.0056	0.0121	−0.0039	0.0004	0.0491
Salary increment per capita, SIPC	−0.0115	−0.0754	−0.0001	0.0154	0.0989
Road increment, RI	0.2033	0.1545	0.1099	0.0981	−0.0246
Secondary industry product increment, SIPI	0.1445	−0.0385	0.0067	0.1829	0.1125
Tertiary industry product increment, TIPI	−0.0627	−0.0808	0.1184	0.2038	0.0123
Electricity consumption increment, ECI	0.1402	−0.0386	0.0378	0.0897	0.0178
Constant	0.2472	0.0498	0.0238	0.0058	0.0448
Durbin-Watson stat	2.6245	2.2180	2.3189	2.1241	2.0733
-squared	0.5107	0.4951	0.4826	0.4389	0.2895
Adjusted -squared	0.3794	0.2536	0.3019	0.2490	0.0200
-statistic	3.8905	0.0545	2.6706	2.3109	1.0741
Prob (-statistic)	0.0000	2.0503	0.0012	0.0048	0.3994

The -test statistics are presented in parentheses. , , and represent statistical significance on a 10%, 5%, and 1% level, respectively.