Soil aggregates and fractal features under different land use types in a frequent debris flow area
文献类型：期刊论文
| 作者 | Xie Xian-jian1; Wei Fang-qiang2
|
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2013-06-01 |
| 卷号 | 10期号:3页码:437-444 |
| 关键词 | Debris flow Land use pattern Aggregates Fractal dimension |
| ISSN号 | 1672-6316 |
| 通讯作者 | XIE Xian-jian |
| 英文摘要 | The stability of soil aggregates and the fractal characteristics of four typical land use types (farmland, grassland, woodland, and bare land) in the Jiangjiagou Ravine (Yunnan, China), a frequent debris flow occurring area, were studied according to the normal mean mass diameter and fractal theory. The present research showed that the stability of the soil aggregates was different for the different land use types. When the soil depth was 0-30 cm, farmland soil formed more aggregates with diameters greater than 0.25 mm, i.e., the farmland soil was more stable than that of the other three land uses. When the soil depth was 30-45 cm, the order of stability of the soil aggregates was woodland > grassland > farmland > bare land. The fractal dimensions had a significant linear positive correlation with the amount of soil particles with diameters of < 0.25 mm, and a significant negative linear correlation with the amount of soil particles with diameters of 0.25-0.5 mm, 0.5-1 mm and 1-2 mm. Smaller fractal dimensions of the soil particles correlated with more stable soil aggregates. The fractal dimensions had a positive linear correlation with the soil bulk density and a negative correlation with the concentration of organic matter. These results showed that soil aggregates can be used as a parameter for characterizing the soil structures and properties. According to these results, the soil particle fractal dimensions could not only objectively characterize the stability of the soil structure but also could be used to indicate soil structure and properties. In addition, these results have great significance for the discussion of the comprehensive evaluation of soil. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | WATER-RETENTION ; PHOSPHORUS ; MANURE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000319418700011 |
| 公开日期 | 2013-06-14 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/5396]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2013_Vol10 No.3 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Neijiang Normal Univ, Sch Geog & Resources Sci, Neijiang 641000, Sichuan, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie Xian-jian,Wei Fang-qiang. Soil aggregates and fractal features under different land use types in a frequent debris flow area[J]. JOURNAL OF MOUNTAIN SCIENCE,2013,10(3):437-444. |
| APA | Xie Xian-jian,&Wei Fang-qiang.(2013).Soil aggregates and fractal features under different land use types in a frequent debris flow area.JOURNAL OF MOUNTAIN SCIENCE,10(3),437-444. |
| MLA | Xie Xian-jian,et al."Soil aggregates and fractal features under different land use types in a frequent debris flow area".JOURNAL OF MOUNTAIN SCIENCE 10.3(2013):437-444. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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