Abstract
Based on remote sensing image data and meteorological data, this paper analyzes dynamic landscape disturbance factors of zhalong wetland through landscape pattern index and other methods, the results show that: (1) In recent 40 years, zhalong wetland landscape type pattern space, landscape fragmentation phenomenon is more serious.(2) The total area of swamp continues to decrease, and the bare land and cultivated land also show a decreasing trend, but the grassland and water area increase.(3) The temperature fluctuation, precipitation change and the government’s policy of building railways and ditches have a profound impact on the landscape pattern of wetland.(4) At the early stage of the study, zhalong wetland landscape dynamic influencing factors are mainly natural factors such as temperature and precipitation;Since the 1990s, human activities such as government building of railways, highways, ditches and other factors have gradually increased the impact on wetland landscape dynamics.
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