Canonical correspondence analysis of land-use pattern change and social-economic development in Yimeng Mountainous area

Making clear of driving force of land-use change in Yimeng Mountainous area is the key to improve man-land relationship. In this study, the 26 counties (urban districts) of Yimeng Mountainous area were taken as examples, and the Canonical Correspondence Analysis (CCA) method was employed to study the correlation between the change of land-use and the level of the social-economic development in Yimeng Mountainous area. The results show that the changes of main land-use types had significant differences between different counties in Yimeng Mountainous area in recent 10 years. Social-economic gross and the dramatic growth of population were the dominant driving force of land-use pattern changes. In Luozhuang District, Rizhao City area and Zaozhuang City area, etc., the socio-economic development level had great effects on land-use pattern changes, which was characterized by the fast expansion of construction land in 10 years. In Yiyuan County, Wulian County and Junan County, etc., land use change took on the fast decrease of cultivated land and expansion of woodlands, and in this areas the development of agricultural industry could account for the driving action of land use pattern changes. In Mengyin County, Ningyang County, etc., the land use change was characterized by the reduction of unused land and lawn, and expansion of water land, which was mainly contributed by the increment of population. The results also indicated that the CCA analysis method could be adopted for the study of land-use pattern change.