| 渭北旱塬区典型农业耕作土壤微形态分形研究 |
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| 引用本文： | 庞奖励,冯亮亮,冯振武,张彩云. 渭北旱塬区典型农业耕作土壤微形态分形研究[J]. 水土保持通报, 2009, 29(6): 1-5 |
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| 作者姓名： | 庞奖励 冯亮亮 冯振武 张彩云 |
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| 作者单位： | 庞奖励,PANG Jiang-li(陕西师范大学,旅游与环境学院,陕西,西安,710062;中国科学院,地球环境研究所,黄土与第四纪地质国家重点实验室,陕西,西安,710075);冯亮亮,张彩云,FENG Liang-liang,ZHAGN Cai-yun(陕西师范大学,旅游与环境学院,陕西,西安,710062);冯振武,FENG Zhen-Wua(陕西国际商贸学院,陕西,咸阳,712000) |
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| 基金项目： | 国家自然科学基金，黄土与第四纪地质国家重点实验室开放基金 |
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| 摘 要： | 利用分形几何的方法,对渭北旱塬典型旱作农业土壤微形态的分形特征进行了研究.在对土壤薄片详细观察的基础上,以土壤微形态数字图像为基础,利用SISC IAS V8.0 软件提取了土壤孔隙与粗颗粒的有关参数,并用计盒维数法计算了其分形维数.结果表明,土壤孔隙分形维数与孔隙率、孔隙面积和周长呈现较好的相关性(依次为0.778 74,0.685 58,0.814 87),粗颗粒分形维数与粗颗粒的含量、面积和周长也呈现较好的相关性(相关系数依次为0.984 18,0.984 06,0.930 10).说明了利用土壤微形态获得的土壤分形维数能够反映土壤结构的空间分布和变异规律,也反映了农业耕作活动对土壤的影响.
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| 关 键 词： | 分维 土壤微形态 孔隙 粗颗粒 耕作土壤 |
| 收稿时间： | 2009-01-17 |
| 修稿时间： | 2009-06-01 |
Micromorphological Fractal Features of Cultivated Soil in the Northern Weihe Area |
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| PANG Jiang-li,FENG Liang-liang,FENG Zhen-Wu and ZHAGN Cai-yun. Micromorphological Fractal Features of Cultivated Soil in the Northern Weihe Area[J]. Bulletin of Soil and Water Conservation, 2009, 29(6): 1-5 |
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| Authors: | PANG Jiang-li FENG Liang-liang FENG Zhen-Wu ZHAGN Cai-yun |
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| Affiliation: | PANG Jiang-li1,2,FENG Liang-liang1,FENG Zhen-Wu3,ZHAGN Cai-yun1(1.College of Tourism and Environment Science,Shaanxi Normal University,Xi'an,Shaanxi 710062,China,2.State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,CAS,Shaanxi 710075,3.Shaanxi Institute of International Trade & Commerce,Xianyang,Shaanxi 712000,China) |
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| Abstract: | The micromorphological fractal features of cultivated soil in the Northern Weihe area are studied using fractal geometry method.With the aid of polarizing microscope and SISC IAS V8.0 software,micromorphological features of the cultivated soils are observed.Void and coarse grain features and the fractal dimension of the cultivated soils are analyzed and calculated using the box-counting method.Results show that void fractal dimension has a good relativity with porosity,void area,and void perimeter,with the ... |
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| Keywords: | fractal micromorphology void coarse grain cultivated soil |
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