| 川西丘陵区景观空间格局分析 |
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| 引用本文： | 张世熔,龚国淑,邓良基,李廷轩,夏建国.川西丘陵区景观空间格局分析[J].生态学报,2003,23(2):380-386. |
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| 作者姓名： | 张世熔 龚国淑 邓良基 李廷轩 夏建国 |
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| 作者单位： | 四川农业大学农学院,四川雅安,625014 |
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| 基金项目： | 四川省教委课题资助项目 ( 0 1 LA0 2 )~~ |
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| 摘 要： | 采用分形维数、平均斑块面积、形状指数和伸张度分析了川西不同丘陵地貌区灌溉水田、一般旱地、果园、有林地和农村居民点斑块的空间格局特征，并用分形维数、平均斑块面积和Shannon-Weiner指数3种方法研究了浅丘、中丘和高丘的综合景观特征。结果表明，不同景观斑块在同一丘陵区内的格局特征不同，同一景观斑块在3种丘陵区的格局也有差异。浅丘、中丘和高丘的综合景观格局特点是随着地势起伏的增加、人类活动和土地利用强度的减弱，分形维数增加，从1.1865到1.3123；斑块平均面积则依次变小，从2.2204hm^2减少到1.2403hm^2。3种丘陵区的景观多样性指数分别为1.7199、1.9802和2.0898。
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| 关 键 词： | 川西丘陵区 景观 空间格局分析 斑块 分形维数 多样性指数 |
| 文章编号： | 1000-0933(2003)02-0380-07 |
| 收稿时间： | 2001/2/25 0:00:00 |
| 修稿时间： | 2001/10/12 0:00:00 |
Analysis of landscape spatial patterns in the hill region in the west of Sichuan Basin |
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| ZHANG Shirong,GONG Guoshu,DENG Liangji,LI Tingxuan and XIA Jianguo.Analysis of landscape spatial patterns in the hill region in the west of Sichuan Basin[J].Acta Ecologica Sinica,2003,23(2):380-386. |
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| Authors: | ZHANG Shirong GONG Guoshu DENG Liangji LI Tingxuan and XIA Jianguo |
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| Abstract: | The spatial pattern characteristics of irrigation terrace, upland field, orchard, forest and residential were studied with fractal dimensions, mean patch area, shape index and elongation in the different hilly regions in the southwest of Mingshan County, Sichuan Province, China. Among the research approaches, the fractal dimensions were calculated by the perimeter-area based on the logarithm relationship between perimeter and area of a landscape patch. From east to west, the relief of low, middle and high h... |
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| Keywords: | landscape patch pattern fractal dimensions diversity |
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