Spatial-Temporal Variance of Urban Construction Land Structure along Western Longhai-Lanxin Railway

Using information entropy, equilibrium degree, dominance degree, cointegration theory, error correction model and Granger causality test, this paper has analyzed spatial-temporal variance of urban construction land structure. The results show that: (1) From 1991 to 2009, information entropy and equilibrium degree of urban construction land along Western Longhai-Lanxin railway had a stable rise first, and then were in a state of fluctuation, leveling out finally, accordingly, the dominance degree had a stable descending first, and then was in a state of fluctuation, leveling out finally. However, as for different cities along Western Longhai-Lanxin railway, information entropy change trends and accumulative change intensity existed differences. In general, accumulative change intensity of information entropy in cities along Western Longhai was lower than that along Lanxin railway. Information entropy was different from each other in cities in 2009. (2) There were a long-term cointegration relationship and a two-way Granger causality between information entropy of urban construction land and non agricultural industry rate along Western Longhai-Lanxin railway.