Spatial Distribution Characteristics and Overlapping Relationship Analysis of Protected Areas in Fuzhou Metropolitan Area

Solving the spatial overlap,unclear boundaries and fragment of protected areas is the key purpose of the integration and optimization.Taking the protected areas in the Fuzhou metropolitan area as the research object,geographic concentration index,the spatial overlap and adjacency analysis were applied to explore the spatial distribution and spatial overlap or adjacency of each protected area in the study area.The results show that:①There are a total of 74 protected areas of five types,including nature reserves,forest parks,geoparks,wetland parks and ocean parks,in the protected areas of the Fuzhou metropolitan area,among which the number of forest parks is the largest (43) and the number of wetland parks minimum (1).The total area of protected areas is the largest (117822.2 hm²),while the area of wetland parks is the smallest (277.5 hm²).②The protected areas in the metropolitan area are distributed in a distributed pattern as a whole.The geographical concentration indices of forest parks,nature reserves,geoparks,ocean parks and wetland parks are 34.7,14.3,3.0,2.1,and 1.2.③From the perspective of cities in the Fuzhou metropolitan area,Fuzhou has the largest number of natural reserves (31),and Fuzhou and Ningde are the areas with the most concentrated natural reserves in the Fuzhou metropolitan area.④There are 11 protected areas in the Fuzhou metropolitan area that overlap in space,and 15 protected areas are spatially adjacent.Overlapping and bordering in forest parks and nature reserves are the most typical.⑤There are 43 protected areas that are composed of multiple fragmented patches rather than an independent and complete natural patch,accounting for 58.11% of the total number of metropolitan areas.The research results can provide reference for the integration and optimization,optimizing cooperation and management mechanism,enhancing the scientific and effective management of protected areas.