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作 者 ：肖寒,欧阳志云,赵景柱,王效科,苗鸿

期 刊 ：生态学报 2001年 21卷 1期 页码：20~27

关键词：景观结构；景观多样性；景观优势度；景观破碎度；分维数；地理信息系统；海南岛；

Keywords:landscape structure, landscape diversity, landscape dominance, landscape fragment, fractal dimension, GIS, Hainan Isl,

摘 要 ：景观空间结构分析是景观生态学研究的核心之一。运用景观生态学原理 ,借助地理信息系统技术 ,选取斑块密度、边缘密度、分维数、景观多样性、景观优势度和平均接近指数等指标 ,分析了海南岛不同景观类型的空间分布和空间格局特征 ,探讨了该地区人类活动与景观结构之间的关系。结果显示从中部山地圈带到台地丘陵圈带到沿海平原圈带 ,平均接近指数从 92 3 1 .4 93到 1 93 3 .585到 4 81 .2 51 ,呈明显减少趋势 ,景观破碎化程度增大 ;景观多样性指数从 0 .787到1 .3 70到 1 .53 7,呈增大趋势 ;平均斑块分维数从 1 .0 67到 1 .0 64到 1 .0 59,呈减少趋势。另外 ,结果也显示从中部山地圈带到沿海平原圈带的人工景观类型优势度明显增大 ,表明受人类活动影响愈来愈强烈。

Abstract:The patch density,edge density,fractal dimension of patches,landscape diversity,landscape dominance and mean proximity index were calculated by models and GIS to analyze spatial distribution and spatial structure of landscape types in Hainan Island.From mid mountains to tablelands and hills to coastal plains,the dominance of man made landscape types increases obviously,patch density,edge density and mean proximity index decreases,and the landscape was becoming more fragmented,landscape diversity decrease....

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