Landscape Pattern of Green Land in Urban Parks in the City Proper of Beijing

Based on the3Stechnique,according to the principles and methods of landscape ecology,were classified.Patterns of green landscapes in the parks in the city proper of Beijing were analyzed by applying the indices such as fragmentation,landscape diversity,landscape dominance,and landscape evenness.It was concluded that there were 105 patches of urban park green lands in Beijing with an area of 5 565.74 hm~2,accounting for almost 4.07%of the whole urban area.Large patches with an area of more than 50 hm~2 accounted for 77.66%of the total area,and there was a lack of small patches such as community parks.The patch density was 1.89 path?km~(-2).The landscape diversity,dominance,and evenness indices were 0.78,0.83,and 0.49 respectively.The distribution of the landscape was uneven,the structure was not reasonable,and the landscape diversity index was low.