呼和浩特市城市边缘区景观格局动态变化研究

利用GIS技术对1987，2000年两期航空遥感影像进行空间叠加对比分析，从斑块及景观2个尺度对呼和浩特市城市边缘区景观格局变化进行了研究。结果表明：在斑块尺度上，边缘区两期景观结构均以农田景观为基质，研究期内，农田景观、草地景观等缓慢减少，建筑景观明显增多；在景观尺度上，边缘区景观多样性指数趋于增大，优势度指数趋于降低．景观组分趋于复杂化、破碎化和多元化。分析其影响因素可知：经济发展和城市化的加快、政策导向是变化的根本原因，人口的增加、土地利用方式的改变是变化的直接原因。

Study of Landscape Pattern Change on Urban Fringe in Huhhot City in Inner Monoglia

In this paper, landscape structure and pattern change of urban fringe have been studied on the basis of patch and landscape by contrasting 1987's aerial sensing image with 2000's in Huhhot city. The results are showed as follows: farmland, grassland and so on have been decreased differently, and building land, green_land and so on have been increased in degrees. On landscape scale, It is said that the diversity of landscape structure and pattern is increased and landscape components tend to be complicated fragmented and poly_basic in urban fringe. Analyzing the human driving force of the dynamic change of landscape, the conclusions may be distinguished as follow: the fast urbanization and the policy guide are fundamental reasons; the population increase and the change of land use are directly reasons for landscape structure and pattern change.