Temporal and Spatial Evolution of Landscape Pattern in Baotou City

Taking Baotou City of Inner Mongolia as a research area, the remote sensing images of the same month in 2006, 2010 and 2016 were selected. Combined with the land use data of Baotou City, the landscape types of Baotou City were divided into six categories, namely, forest land, grassland, water body, cultivated land, construction land and unused land. And the analysis of landscape pattern dynamics change, transfer network, landscape change spatial aggregation characteristics, center of gravity transfer, landscape pattern index change and landscape pattern evolution driving force were analyzed. The results showed that the characteristics of the urban landscape had undergone profound changes during the decade of 2006-2016. In 2006-2010, the rate of reduction of unused land was as high as 19.48%, and the growth rate of construction land for ten years was increased from 1.3% to 2.76%. In 2010-2016, totally 15.19% of the cultivated land was converted into grassland landscape, and 3.79% was converted into construction land. In the past ten years, landscape changes were distributed in Baotou City. The landscape changes were mainly distributed in the agricultural farming areas where the cultivated land was densely covered with grassland and the interlaced edges of different landscapes. In 2006-2010, in the unutilized land, the bare land in the north was ecologically treated, the area was reduced, and the center of gravity was moved 73.79 km to the southeast. The landscape segmentation index, the aroma diversity, the fragrance uniformity, etc. were decreased, and the dominant landscape was not yet formed, and the landscape fragmentation was intensified. Through the analysis of landscape pattern driving force, it was found that the intensity of landscape change was related to NDVI. © 2019, Chinese Society of Agricultural Machinery. All right reserved.