Changes in urban wetland landscape pattern and construction of urban landscape mosaic: a case study of Wuhan City

The spatial information data on wetland is built up by using 1996 and 2001 remote sensing data as basic information sources and with the Geographic Information System (GIS). Through a selection of the indices such as patch size, fractal density, fractal dimension, fragmentation, diversity and dominance and uniformity index, the dynamic development of wetland landscape pattern in five years is analyzed. Then, transform probabilities from each type of the wetland landscapes to others (including non-wetland landscape) are calculated based on the Markov Model, and the relationship between changes in wetland landscape pattern and urban construction in Wuhan City is discussed. The analytical result shows that urban wetland landscape is one of important components of the urban landscape of Wuhan City and, therefore, the wetland landscape should be protected.