The distributions of patch size are extremely uneven in eight types of greenland, each of which includes many small patches, and most of them show a lognormal pattern of distribution.

• 城区绿地斑块大小分布极不均衡，8种类型都是以小斑块为最多。8种类型斑块大小分布中，7种类型服从对数正态分布。