| 滇池流域土壤侵蚀空间结构的分形特征分析 |
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| 引用本文： | 丁剑宏,谢飞帆,陈丽.滇池流域土壤侵蚀空间结构的分形特征分析[J].中国水土保持,2011(1):43-45. |
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| 作者姓名： | 丁剑宏 谢飞帆 陈丽 |
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| 作者单位： | 1. 云南省水利水电科学研究院,云南,昆明,650228
2. 云南师范大学,旅游与地理科学学院,云南,昆明,650000 |
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| 摘 要： | 借助GIS技术,结合分形理论,计算了滇池流域土壤侵蚀空间格局的分形参数,并对其分形特征进行了分析。研究结果表明:滇池流域土壤侵蚀空间格局分形特征客观存在,不同强度土壤侵蚀斑块形态的复杂程度各不相同,其中轻度侵蚀>中度侵蚀>极强烈侵蚀>强烈侵蚀>剧烈侵蚀>微度侵蚀;土壤侵蚀空间结构的稳定性,随着侵蚀强度的增大呈现先减小后增大的趋势;各土壤侵蚀强度空间结构的紧凑度基本上都集中在0.600～0.630之间,受人为活动的影响,图斑的聚集性有细微的差别。
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| 关 键 词： | GIS 土壤侵蚀 分维值 稳定性 紧凑度 滇池流域 |
Fractal Characteristics of Spatial Structure of Soil Erosion in Dianchi Basin |
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| DING Jian-hong,XIE Fei-fan,CHEN Li.Fractal Characteristics of Spatial Structure of Soil Erosion in Dianchi Basin[J].Soil and Water Conservation In China,2011(1):43-45. |
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| Authors: | DING Jian-hong XIE Fei-fan CHEN Li |
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| Institution: | DING Jian-hong1,XIE Fei-fan2,CHEN Li1(1.Yunnan Institute of Water Resources and Hydropower Research,Kunming,Yunnan 650228,China,2.Yunnan Normal University,Yunnan 650000,China) |
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| Abstract: | The paper calculates the fractal parameters of spatial structure of soil erosion of Dianchi basin and analyzes its fractal characteristics by using GIS technology combining with fractal theory.The outcomes show that a) the fractal characteristics of spatial structure of soil erosion of Dianchi basin objectively exist and the complicated degree of spot shape of soil erosion in different intensity is different,of which,light erosion > medium erosion >extreme intensive erosion >intensive erosion >strenuous ero... |
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| Keywords: | GIS soil erosion fractal dimension value stability compactness Dianchi basin |
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