【摘要】 为揭示南昌市城市森林树冠覆盖特征及景观生态变化，进一步为生态建设提供参考，本研究利用ERDAS 2014、eCognition Developer 9.0和Fragstats 4.2.1等软件解译并分析了南昌市主城区2015―2019年林木树冠覆盖特征和景观格局变化。结果表明：在景观水平上，2015―2019年间，南昌市主城区景观斑块数量从51 344个增长至71 707个，斑块密度从0.527个·hm^-2增长至0.740个·hm^-2，景观形状指数从237.7增长到260.4。在斑块类型水平上，2015年南昌市主城区不透水地表面积最多，为43 289.9 hm²；林木树冠覆盖面积次之，为21 129.5 hm²；裸地面积最少，为1 255.8 hm²。2019年不同地类面积发生了不同程度的变化，草地和裸地面积分别减少了45.9%和34.2%，林木树冠覆盖面积增加了2.7%。总之，研究期间南昌市主城区城市森林呈现总面积增长和景观破碎化现象，建设用地面积仍在增长。更多还原

【Abstract】 The aim of this study was to reveal the changes of urban tree canopy and landscape pattern in Nanchang City,and to provide references for further ecological construction.The ERDAS 2014,eCognition Developer 9.0,and Fragstats 4.2.1 software were used to interpreted and analyzed the changes of urban tree canopy and landscape patterns in the main urban area of Nanchang City from 2015 to 2019.The results showed that at the landscape level,from 2015 to 2019,the number of patches increased from 51 344 to 71 707,patch density increased from 0.527 to 0.740 per hectare,and landscape shape index increased from 237.7 to 260.4.At the patch type level,impervious surface area was largest (43 289.9 hm~2),the area of urban tree canopy was the second (21 129.5 hm~2),and the area of bare land was least (1 255.8 hm~2) in 2015.The area of different land types changed differently from 2015 to 2019.The area of grassland and bare land decreased by 45.9%and 34.2%respectively,and the area of urban tree canopy increased by 2.7%.In summary,the urban forest in the main urban area of Nanchang City showed growth of total area and landscape fragmentation during the research period,and the area of construction land increased.更多还原