基于Fragstats的汉阳地区景观格局动态分析

Dynamic Analysis of Landscape Patterns in Hanyang Region Based on Fragstats

随着城市化进程的逐步加快,城市地区的景观格局逐渐成为研究热点。景观格局影响着区域生态安全及发展的可持续性,对城市用地的布局规划具有一定的指导意义。基于Fragstats软件,选取斑块类型水平和景观水平共9项指标计算景观格局指数,分析了2000、2010年及2020年汉阳地区景观格局及其动态变化特征。结果发现:近20年来汉阳地区景观中各类型斑块破碎度逐步降低、聚集度和连通度升高,各类斑块形状趋于规则,但湿地类型的破碎度增加。针对这一趋势,提出了相应的改善建议,以期为汉阳地区的用地布局优化和景观的可持续发展提供参考。

With the gradual acceleration of urbanization,the landscape patterns of urban areas have gradually become a research hotspot.Landscape patterns affect regional ecological security and sustainability of development,and have certain guiding significance for urban land layout planning.Based on Fragstats software,the landscape pattern index was calculated by selecting 9 indexes including patch type level and landscape level,and the landscape patterns and its dynamic change characteristics were analyzed in Hanyang region in 2000,2010 and 2020.It was found that in the past 20 years,the fragmentation degree of each type of patch gradually decreased;the aggregation degree and connectivity degree increased,and the shape of each type of patch tended to be regular,but the fragmentation degree of wetland type increased.Finally,according to this trend,the corresponding improvement suggestions are put forward,in order to provide a reference for the optimization of land use layout and sustainable landscape development in Hanyang region.