基于类型水平的湿地景观格局分析及格局稳定性研究

Analysis of Wetland Landscape Pattern and Study on Pattern Stability Based on Type Level

湿地自然保护区景观格局稳定性分析对于保护自然资源、实现可持续发展是十分必要的.该文以辉河湿地自然保护区为研究区,运用格局指数确定稳定性模型、MCCA模型等方法,基于类型水平对辉河湿地景观格局、格局稳定性进行分析,对未来格局稳定性进行预测.结果表明:(1)2000~2020年辉河湿地自然保护区景观格局优势类型由沼泽湿地和草地类型主导,破碎化程度增加且大于其他类型.斑块受人为干扰较低,聚集度高且稳定,与其他类型斑块间连通度较大.(2)2000~2020年景观格局稳定性:草地>沼泽湿地>沙地>湖泊>林地>城工用地.(3)2030年景观格局仍以沼泽湿地和草地景观为主,格局稳定性各类型比较与2000~2020年一致.

The stability analysis of the landscape pattern in wetland nature reserves is essential for protecting natural resources and achieving sustainable development.In this article,taken the Huihe Wetland Nature Reserve as the research area,and used methods such as pattern index determination stability model and MCCA model,the landscape pattern and pattern stability of the Huihe Wetland based on type level is analyzed,and the future pattern stability is predicted.The results indicate that from 2000 to 2020,the dominant types of landscape pattern in the Huihe Wetland Nature Reserve were swamp wetlands and grassland types,with an increase in fragmentation degree and greater than other types.Patches are less affected by human interference,have high and stable aggregation,and have greater connectivity with other types of patches.(2)Landscape pattern stability from 2000 to 2020:grassland>swamp wetland>sandy land>lake>forest land>urban construction land.(3)The landscape pattern in 2030 will still be dominated by marsh wetlands and grassland landscapes,and the stability of each type of pattern is consistent with that of 2000~2020.