沂蒙山区土地利用格局变化与经济社会发展的典范对应分析

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

为明确沂蒙山区土地利用变化的驱动因素,改善区域人地关系,运用约束性排序分析方法,对沂蒙山区26个县(市、区)的土地利用在经济社会发展约束条件下的格局变化进行典范对应分析。结果表明:1997—2007年10年来,沂蒙山区土地利用格局变化存在明显的区域分异现象,经济社会的发展和人口的增加是沂蒙山区土地利用格局变化的主要驱动力;罗庄区、日照市辖区和枣庄市中区等县(市、区)以建设用地的快速增加为主要特征,区域经济发展水平对其土地利用变化驱动作用明显;沂源县、五莲县和莒南县等县(市、区)以耕地的萎缩和林地的扩展为主要特征,农产业的开发对于区域土地利用格局变化具有较强的驱动作用;蒙阴县、宁阳县等县(市、区)以未利用土地、草地的减少和水域的增加为主要特征,人口的增加驱动土地利用格局变化的贡献较大。

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.