| 基于移动视窗法的红河流域景观格局分析 |
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| 引用本文： | 李望军,彭明春,潘怀忠,王崇云,彭泽瑜,秦瑞.基于移动视窗法的红河流域景观格局分析[J].安徽农业科学,2013,41(10):4455-4457. |
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| 作者姓名： | 李望军 彭明春 潘怀忠 王崇云 彭泽瑜 秦瑞 |
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| 作者单位： | 云南大学生态学与地植物学研究所,云南昆明,650091 |
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| 摘 要： | 以RS和GIS为技术手段,基于FRAG-STATS软件平台,先后采用标准法和移动窗口法获得红河流域的整体景观格局特征以及空间梯度分布特征,生成了景观指数空间分布图。分析结果表明:整体而言,流域范围内各指数分布很不均衡,暖温性针叶林及暖温性灌丛和灌草丛斑块数多,占景观面积百分比大,最大斑块指数值较大,为该流域的优势景观类型;耕地的破碎化程度最高,这与城市化进程的加快,人类活动对土地的开发与利用有关。就横向和纵向梯度变化而言,两样带上各个景观格局指数呈现不同幅度的上下波动,SHID、LSI、ED和PD 4个指数表现出相似的变化趋势,而AREA_MN、CONTAG和LPI指数则表现出与之相反的变化趋势。
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| 关 键 词： | 红河流域 移动窗口 景观格局 |
Landscape Pattern in Honghe River Basin Based on Moving Window Method |
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| Institution: | LI Wang-jun et al ( Institute of Ecology and Geobotany, Yunnan University, Kunming, Yunnan 650091 ) |
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| Abstract: | Based on FRAG-STATS software with RS and GIS technology this paper has mapped out the landscape index of Honghe River basin via standard method and moving split-window method, analyzing the landscape structure pattern and spatial gradients. The results showed that overall, each index is very uneven within this basin. The warm needle-leafed and shrub patches of shrubs and grass is dominant pattern and occupies a large amount of the landscape. The maximum parcel index is high so it is the dominant landscape pattern of this basin; The fragmentation index of cultivated land is high which is related with the rapid speed of urbanization process and the utilization of land by human activities. Concerning the changes from both lateral and vertical, on the two transects each index of landscape pattern are in fluctuation, SHID, LST, ED and PD resemble in changing trend, while AREA_MN, CONTAG and LPI are on the contrary. |
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| Keywords: | Honghe River basin Moving window Landscape pattern |
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