An Analysis of Spatial Distribution Patterns and Accessibility to Micro-Wetlands in Huaibei City
The coal mining all the year round in Huaibei city has led to surface subsidence and water logging,making it an ideal target for micro-wetland studies.By applying classification criteria,we extracted micro-wetland patches in Huaibei city and measured their spatial patterns and accessibility levels.The results indicate that there are 1 083 micro-wetlands in Huaibei city,covering a total area of 2 857.09 hectares,primarily consisting of small lake wetlands.The patch areas are generally small,with a high degree of fragmentation.The small wetlands exhibit clustered distribution in space,with three high-density aggregation areas formed in the northern part of the city,moreover,the uneven spatial distribution pattern is obvious.Micro-wetlands within the buffer zones of rivers and coal mines demonstrate the distribution regularity,decreasing in quantity from near to far,serving as a crucial factor influencing the formation of micro-wetlands.The spatial accessibility to micro-wetlands exhibits a distinct"ring-shaped"characteristic,with an orderly increase in average travel time from high-value areas outward.A low-value area is formed in the southern most part of the city.This study provides valuable insights into the management and utilization of micro-wetlands in Huaibei city.
Micro-wetlandsStructure typesSpatial distributionAccessibilityHuaibei city
万方数据
维普
