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多尺度空间格局研究对于全面了解建设用地变化具有重要意义。采用1989、2000和2009年的TM影像研究了郑州市建设用地景观的多尺度格局及动态。结果表明:1989—2009年,郑州市建设用地面积增长迅速,且其平均斑块面积呈单极增长趋势,农村建设用地面积增加较城市缓慢;在<13km空间尺度上城市核心区建设用地面积逐渐增加,建设用地斑块的联通和扩张势态明显;13～25km的尺度上建设用地景观表现为聚集-分散-聚集过程;25～58km的尺度上建设用地景观表现为聚集-分散过程;在空间变化方面,郑州市辖区东部、北部和西南部建设用地景观增加速度最快,农村建设用地景观变异程度小于城市,郑州市辖区中部、郑州市西部和北部建设用地景观变化较小。
The study of multi-scale spatial pattern is of great significance to fully understand the change of construction land. Using the TM images of 1989, 2000 and 2009, the multi-scale pattern and dynamics of the landscape of construction land in Zhengzhou were studied. The results show that from 1989 to 2009, the area of construction land in Zhengzhou increased rapidly, and the average patch area showed a unipolar trend of increase. The area of rural construction land increased more slowly than that of urban areas. At <13 km spatial scale, the construction land area in urban core areas gradually increased The landscape of the land for construction in the scale of 13 ~ 25km shows aggregation-dispersion-aggregation process; the landscape of construction land shows aggregation-dispersion process on the scale of 25 ~ 58km; in the spatial variation In terms of area, the landscape of construction land in the eastern, northern and southwestern regions of Zhengzhou Municipality increased most rapidly. The degree of landscape variation in rural construction land was less than that in cities. The landscape of the construction land in the west and north of Zhengzhou City was small.