| Under the direction of the basic theories and methods on the landscape, eco-logic and systematology, this paper establishes a conceptual model of the landscape ecosystem in the ecotourism district, and put forward the measure index system. The paper calculated landscape pattern indices by GIS, analyzed the landscape pattern and its dynamic changes in the different periods in the Expanded Qingcheng Ecotourism District, Dujiangyan City, Sichuan Province. And Markov Model and the compartment theory are used to simulate and analyze the changes of landscape pattern on the different disturbed intensities in the future. The main results are as follow.1. The woodland and tilth are still the matrix landscape, and others are incrustation in the holistic landscape, however the proportion and spatial distribution of the idiographic landscape type presents the obvious variational trend. The proportions of the tilth and grassland have been the downtrend, the area of tilth has decreased by 2086.18 hm~2, to the extent 22.99%, and the grassland vanished in 2003, which have been transferred to the woodland and construction land. The uptrend have been constant on the woodland and construction land in the recent 15 years, increased by 2094.17 hm~2, 1157.22 hm~2, to extent of 16.69%, 69.05%, but the number of patches is still, the area of single patch augments. The massive towns have emerged remarkably like as Qingchengshan town, Yutang town, Daguan town, etc.2. The indices of landscape diversity and dominance on the total landscape have presented the downtrend, while the isolation situation is complicated. Much difference of the isolation of the landscape types has presented. The isolation index of the tilth has increased by 15.79%, and the...
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