【摘要】 通过边界数量的长度谱分布分析 ,探讨了边界数量 长度特征与景观和组分碎裂化程度之间的相互关系 ;基于边界的数量和累积长度计算了景观多样性、均匀度、异质性和空间复杂性 ,并与基于斑快面积比重的传统格局指数计算结果进行了对比分析 .研究表明 ,研究区内的快速城市化过程导致组分界面特征复杂化 ,空间分布的圈层结构简化 ;边界总体的数量谱分布方程系数a对于景观整体碎裂化程度有良好的指示意义 ,基于边界特征的景观格局指数对于传统的格局分析方法可以形成有益的补充 .更多还原

【Abstract】 Through boundary number to the length distribution spectrum analysis,the relationships between boundary number-length and fragmentation of landscape and element were discussed.Landscape pattern indices such as diversity,evenness,heterogeneity,and spatial complicity were calculated based on boundary number and cumulative length,and these indices were compared with those based on element area proportion.The results indicated that the fast urbanization process caused complication of boundary element distribution pattern and simplification of layer structure.The distribution function parameter α could reflect landscape fragmentation properly,and the landscape pattern indices based on boundary characteristics was an useful supplement for traditional pattern analysis更多还原