The index of patch density of wetlands of all the types increased, with that of reed swamps ranked first, being 18.507, and that of mudflats second, being 6.879 in 2005.

• 各湿地类型的斑块密度都出现了不同程度的增大，其中芦苇沼泽和滩涂增大最明显，2005年斑块相对密度分别达18.；507和6