山东省生态用地时空演变格局及其影响因素

Spatio-temporal Evolution Pattern and Influencing Factors Analysis of Ecological Land in Shandong Province

选用山东省1980—2015年共6期遥感解译土地利用现状数据,采用土地利用类型动态度、土地利用转移矩阵、不稳定版块空间特征等方法分析了山东省生态用地时空演变格局及其影响因素,为土地的合理规划利用提供参考依据。结果表明:1980—2015年山东省生态用地占全省总面积比例由22. 45%下降至20. 42%;非生态用地面积整体上由77. 55%增加至79. 58%,主要表现在建设用地的增加。整体上,生态用地向规模递减的方向发展,非生态用地向规模递增的方向发展。影响研究区生态用地格局变化的因素主要包括研究区的气象条件、经济发展水平、产业结构和人口结构等因子。

This paper dealt with 6 periods land use data of Shandong Province.Dynamic degree,transition probability matrix,and spatial autocorrelation analysis were adopted to analyze the temporal evolution pattern and influencing factors of ecological land in Shandong Province and provided a decision-making reference for the future plan and environmental protection during the development of Shandong Province.The results indicated that the ratio of ecologically used land area decreased from 22.45%to 20.42%from 1980 to2015.Ecological land area kept a trend of decrease,in particular,there was a significant reduction in unutilized land.And cultivated land also showed a trend of continuous declined.Urban and rural construction land was the only land type that was continuously and substantially increased.The spatial stability of ecologically used land was relatively low but showed an upward trend.Overall,the ecologically used land moved in the direction of shrinking and the non-ecologically used land moved in the direction of expanding.The main factors affected the change of ecological land use pattern in the study area included meteorological conditions,economic development level,industrial structure and population structure.