Changes of landscape pattern and its influence on environment in Dongling District,Shenyang City, China

Dongling District of Shenyang City is an ecotone between city and countryside. Human disturbance causes serious changes of the landscape pattern studed by using indices of landscape pattern: proportion in land cover types,average area and number of patches,fractal dimension of patches,indices of diversity, dominance and contagion and index of human disturbance.There are many changes of the landscape pattern of Dongling District for the last 30 years.The landscape pattern is breaking, the diversity is increasing and the dominance is decreasing.There are different fractal dimension and contagion in distinct geomorphological unit.The changes of landscape pattern bring some beneficial results but causes deterioration of ecological environment.