大连市近20a景观格局变化及驱动力研究  

Research on the Landscape Pattern Changes and Driving Forces in Dalian City During Last 20 Years

作　　者：袁先强 王鹏[2,3] 闫吉顺[1,2,3] 卫亚星[1] 

机构地区：[1]辽宁师范大学城市与环境学院,辽宁大连116029 [2]国家海洋环境监测中心,辽宁大连116023 [3]国家海洋局海域管理技术重点实验室,辽宁大连116023

出　　处：《地理空间信息》2017年第3期77-80,共4页Geospatial Information

基　　金：国家海洋局海域管理技术重点实验室开放基金资助项目(201402)

摘　　要：基于TM遥感影像,首先利用ENVI5.0遥感处理软件对大连市域的1990年、2000年和2010年遥感影像图进行解译分类;再利用Fragstats4.2对解译影像分类结果进行计算;最后对得到的景观格局指数和驱动因素进行分析。结果表明,20a间大连市景观格局中原属优势景观类型的耕地面积减少了约1/2;而建设用地面积则增长了近3倍,截至2010年已代替耕地成为优势景观类型,且斑块更加大型化、集中化并呈向四周蔓延趋势。通过驱动因素分析可知,人口规模的增长、产业结构的调整以及国家的一些政策变动是导致大连市近20a景观格局演变的主要因素。Based on TM remote sensing images,this paper used ENVI5.0 remote sensing image processing software to classify the remote sensing image maps of Dalian City in 1990,2000 and 2010 at first.And then,the paper used Fragstats4.2 to calculate the classification result of the image interpretation,and analyzed the landscape pattern indexes and driving factors.The results show that in the past 20 years,the landscape pattern of Dalian City has changed significantly.The cultivated land area has reduced the nearly half during last 20 years,while the construction land area has grown nearly 3 times.The construction land has replaced the cultivated land to become the dominant landscape type in 2010.The patches are more largescale,centralized and spread to the surrounding trend.Through the driving factor analysis,the result shows that the growth of the population size,the adjustment of industrial structure and some policy changes are the main factors of the landscape pattern changes in Dalian City during last 20 years.

关 键 词：土地利用 景观格局指数 驱动因素 大连市 

分 类 号：P237[天文地球—摄影测量与遥感]