保山市城区景观格局时空变化研究

Temporal and Spatial Variation of Landscape Pattern in Baoshan City

  • 摘要: 基于2001—2019年4期Landsat遥感影像数据,通过监督分类、目视修正和外业调查相结合的方法进行遥感影像解译,构建景观面积转移矩阵,运用景观格局指数、驱动力分析和FLUS模型,对研究区的景观格局时空变化和模拟进行分析。结果表明:2001—2019年,研究区农田主要转为城乡人居及工矿用地,林地主要转为农田,水体主要转为城市公园绿地;研究区整体景观破碎化愈发严重,各景观类型之间连通性降低,景观呈现分散发展,最具优势的农田优势性逐渐降低;地区生产总值、第二产业产值和第三产业是研究区景观格局变化的主要驱动力;研究区城乡人居及工矿用地主要向北部和东部扩张。

     

    Abstract: Based on the remote sensing images of 4 periods from 2001 to 2019, remote sensing images were interpreted through a combination of supervised classification, modification of visual interpretation and investigation in field, and the transfer matrix of landscape area was constructed. Using landscape indices, driving forces analysis and FLUS model, temporal and spatial variation and simulation of landscape pattern for study area were analyzed. The results show that from 2001 to 2019, the cropland area was mainly converted into urban, human settlement and construction land, the wood land was mainly converted into cropland, and the water area was mainly converted into urban park green space. The integrated landscape fragmentation has become more serious in the study area, the connectivity has decreased in each of landscape types, the landscape has developed dispersedly, and the dominance of most advantageous area of cropland has decreased gradually. The regional GDP, second industrial output and tertiary industry output were the main driving forces for the landscape pattern change in the study area. The urban and rural residential and industrial and mining land in the study area mainly expanded to the north and the East.

     

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