| 城市森林景观逆破碎化生态阈值初探——以沈阳市三环以内区域为研究对象 |
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| 引用本文： | 李娜,刘常富.城市森林景观逆破碎化生态阈值初探——以沈阳市三环以内区域为研究对象[J].中国园艺文摘,2012(5):69-71. |
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| 作者姓名： | 李娜 刘常富 |
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| 作者单位： | 沈阳农业大学林学院,辽宁沈阳110866 |
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| 摘 要： | 基于Quick Bird卫星影像和地理信息系统,以ArcGIS 9.3和Fragstats 3.3为技术支撑,对不同建筑密度下的城市森林景观逆破碎化趋势下景观指数和植物群落特征变化进行分析,并对景观进行近自然度评价,进而找出达到近自然林属性的最低景观逆破碎化程度,即景观逆破碎化阈值。
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| 关 键 词： | 城市森林 景观逆破碎化 生态阈值 沈阳 |
Study on ecological thresholds of the landscape defragmentation |
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| Authors: | LI Na LIU Chang-fu |
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| Institution: | LI Na, LIU Chang-fu |
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| Abstract: | Based on Quick Bird satellite imagery and geographic information systems, ArcGIS9.3 and Fragstats3.3 technical support, the landscape indices and community characteristics change in the trend of urban forest landscape in a different building density within the 3rd ring road of Shenyang City under reverse fragmentation, and landscape near nature of evaluation were analyzed. Then the lowest near natural forest property landscape inverse fragmentation （landscape inverse fragmentation threshold） was found. |
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| Keywords: | Urban forest Inverse of landscape fragmentation Ecological threshold Shenyang City |
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