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山地景观结构特征决定着景观的功能和生态过程,山地景观结构特征的变化山地景观研究的重要课题。本文以北京东灵山地区为研究点,借助GIS构建了1984年、1994年、2002年3个时间段景观动态序列,结果表明:1)近18年来,东灵山地区景观总体结构呈现破碎化趋势;2)各景观类型受人类活动影响程度不同,农业耕作和采伐后,林地和草地转变为农田和灌丛;3)村庄和农田的斑块小型化为主,边缘复杂程度较高,灌丛、林地和草地仍以大型斑块为主,边缘复杂程度较低。
The characteristics of mountain landscape structure determine the function and ecological process of landscape, the change of mountain landscape structural features and important issues in mountain landscape research. In this paper, the Dongling Mountain area in Beijing is taken as a research area, and GIS dynamic sequences are constructed by using GIS in three time periods of 1984, 1994 and 2002. The results show that: 1) the overall landscape structure of Dongling Mountain area has been fragmented in the past 18 years; 2) The impact of different types of landscapes on human activities is different. After farming and harvesting, the forest land and grassland are transformed into farmland and shrub land. 3) The small patches in villages and farmland are dominated with more complicated edges, Woodland and grassland are still dominated by large plaques, with less complex edges.