| 成都平原土壤颗粒分形特征及应用 |
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| 引用本文： | 邓良基,林正雨,高雪松,张世熔. 成都平原土壤颗粒分形特征及应用[J]. 土壤通报, 2008, 39(1): 38-42 |
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| 作者姓名： | 邓良基 林正雨 高雪松 张世熔 |
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| 作者单位： | 四川农业大学,资源与环境学院,四川,雅安,625014;四川省土地资源信息实验室,四川,雅安,625014 |
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| 摘 要： | 采用分形模型研究了成都平原土壤颗粒分形维数的变化特征以及分形维数与土壤性状间的关系。结果表明成都平原土壤颗粒分形维数(0￣40cm)介于2.903￣3.005之间。在水平方向上东北方的中江县最大,西南方向的温江区和双流县次之,北方的绵竹市最小。土壤颗粒分形维数是反映土壤质地的一个较好的指标,重点反映粘粒含量,其次是粉粒含量。分形维数的变化能很好的表征平原区土壤化学、物理性状的变化趋势,可以作为评价土壤结构、土壤肥力诊断的一个综合指标。
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| 关 键 词： | 成都平原 土壤性状 土壤颗粒 分形维数 |
| 文章编号： | 0564-3945(2008)01-0038-05 |
| 修稿时间： | 2006-11-08 |
Fractal Feature of Soil Particles in the Chengdu Plain |
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| DENG Liang-ji,LIN Zheng-yu,GAO Xue-song,ZHANG Shi-rong. Fractal Feature of Soil Particles in the Chengdu Plain[J]. Chinese Journal of Soil Science, 2008, 39(1): 38-42 |
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| Authors: | DENG Liang-ji LIN Zheng-yu GAO Xue-song ZHANG Shi-rong |
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| Abstract: | The features of fractal dimension of soil particles in the Chengdu Plain and the relationship of soil characters and the fractal dimension were investigated. The results showed that soil fractal dimensions(0-40cm) ranged from 2.903 to 3.005. Fractal dimensions decreased with the trend of increasing depth. Fractal dimension of soil particles is a better index reflecting the soil texture, especially clay and silt contents. The change of fractal dimensions can indicate the changes in soil chemical and physical properties, and it can also be used as a comprehensive index in evaluating soil structure and soil fertility. |
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| Keywords: | The Chengdu plain Soil character Soil particle Fractal dimensions |
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