城市发展推动下的济南市景观格局变动研究——基于2007—2017年景观格局指数的分析

Change of Landscape Pattern in Jinan City Driven by Urban Development——Analysis Based on Landscape Pattern Index from 2007 to 2017

采用2007年的Landsate5TM、2013年和2017年的Landsate8OIL遥感影像,选取分维度、蔓延度、香农多样性指数、香农均匀度指数等指标,从类型水平和景观水平两个方面,对济南市主城区10年间的景观格局进行分析,结果表明:城市整体的斑块丰富度增加,生态系统趋于多样化;未利用地面积逐渐减少,林地与耕地面积显著增加;耕地质心逐渐“北跨”,这与10年间济南市整体的政策定位与城市发展脉络相契合。提出大力推动农村社区规划,严格控制占用林地、狠抓植被恢复,做好城市建设用地规划、预留发展空间等土地利用的建议。

Based on the remote sensing images of Landsate5TM in 2007,and Landsate8OIL in 2013 and 2017,the landscape pattern in the main urban area of Jinan City in the past 10 years was analyzed from type level and landscape level by selecting indicators such as dimension,spread,Shannon diversity index and Shannon evenness index.The results showed that the overall patch richness of the city increased and the ecosystem tended to be diversified.The area of unused land decreased gradually and the area of forest land and cultivated land increased significantly.The barycenter of cultivated land gradually“extended to north”,which was consistent with the overall policy positioning and urban development context of Jinan in the past 10 years.This paper suggested to vigorously promote the planning of rural communities,strictly control the occupation of forest land,pay close attention to vegetation restoration,do a good job in urban construction land planning and reserve development space.