A Field Source-strength Method for Interaction Scenario in Network Space of Metropolitan

With the collaborative development of region, spatial interaction has become a hotspot issue in geography research. A scenario analysis model of urban multidimensional interaction was proposed based on geography spatial data field. Where the urban clustering area was viewed as a geography spatial data field. While the intercity spatial interactions were considered as field strength in the model. Then Wuhan metropolitan area was taken as a case to study intercity spatial interaction and its dynamics. The results indicates that the intercity spatial interaction is infirmness and its spatial pattern showing “one nuclear and multitude weak”, eastern interaction stronger than the west. Since 2006, effected by the policy of “1+8 City Circle of Wuhan”, the interaction has been reinforced and the integration process has been promoted effectively in recent years