Analysis of spatial pattern of farmland and its impacting factors in coastal zone of Circum Bohai

In this paper, coastal zone of Circum Bohai Sea Region which covers an area of approximately 170, 000 km super(2) was selected as the study area. The spatial distribution characteristics of farmland of this study area were analyzed and the relationship between farmland distribution and natural, social or economic impacting factors was explored. In this study, ordinary least square linear regression model (OLS), spatial error model (SEM), spatial lag model (SLM) and geographically weighted regression model (GWR) were established from global and local perspectives. The results showed that: 1) Farmland was the main land use type, which occupied 53% of the whole study area. Among the most sensitive factors affecting farmland distribution, average yearly temperature and average yearly precipitation were the main positive factors, while elevation, slope and distance to nearest residential area were the main negative factors.