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利用RS与GIS技术,结合景观结构分析软件Fragstats4.2,采用1993年、1998年、2002年、2005年、2009年、2013年6年的遥感数据从斑块、景观层次和景观空间格局上研究西洞庭湖青山湖国家城市湿地公园建设前后20年景观格局变化.结果表明:1)湿地公园建设之后湿地面积快速减少,非湿地面积快速增加.2)湿地景观类型中水体与泥滩地变化最大,水体在湿地公园建设之后破碎度增加,形态变化复杂,而泥滩地与之相反,非湿地各景观类型变化不大,整体发展态势较好.3)湿地公园建设之后景观破碎度增加,景观形状变化复杂,景观异质性增加.4)湿地公园建设之后水体及草滩地的景观基质地位没有改变,但整体上湿地景观类型的优势度呈现降低趋势,而非湿地特别是耕地景观在近几年优势度显著增大.
Using RS and GIS technology and combining with Fragstats 4.2 of landscape structure analysis software, the paper studied the patch, landscape level and landscape pattern using remote sensing data of 1993, 1998, 2002, 2005, 2009 and 2013 The results showed as follows: 1) The wetland area decreased rapidly and the non-wetland area increased rapidly after the wetland park was constructed.2) The changes of the water body and mudflat land in the wetland landscape type were the largest, After the wetland park was constructed, the degree of fragmentation increased and its morphology changed in a complicated way. On the contrary, the wetland landscape changed little and the overall development trend was better.3) After the wetland park construction, the landscape fragmentation increased and the landscape shape changed Complexity and landscape heterogeneity.4) After the wetland park construction, the landscape matrix status of water body and grassland has not changed, but overall the dominance degree of the wetland landscape pattern shows a decreasing trend, while the non-wetland especially the cultivated land landscape has the advantages in recent years Degree significantly increased.