Scaling properties of particle-size distributions of purple soils in a small agricultural watershed: A multifractal analysis
文献类型：期刊论文
| 作者 | Li, Jinlin1,2; Bao, Yuhai2,6; Wei, Jie3; He, Xiubin2,6; Tang, Qiang4; Wu, Shengjun1 ; Huang, Ping1; Ma, Maohua1; Zhou, Ping2; Wang, Mingfeng2,5
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| 刊名 | CATENA
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| 出版日期 | 2022-08-01 |
| 卷号 | 215页码:10 |
| ISSN号 | 0341-8162 |
| 关键词 | Particle-size distribution Historical land use Multifractal characterization Purple soil Three Gorges Reservoir Region |
| DOI | 10.1016/j.catena.2022.106326 |
| 通讯作者 | Bao, Yuhai(byh@imde.ac.cn) ; He, Xiubin(xiubinh@imde.ac.cn) |
| 英文摘要 | The particle-size distribution (PSD) of soils is a basic physical attribute that affects edaphic hydrological, chemical, and biological properties as well as soil quality and land productivity. Purple soil, as an early weathering product of purple mudstone, is a valuable resource for agricultural development in southwestern China. However, little is known regarding PSDs of purple soil, especially in small agricultural watersheds with diverse land-use types. The present study aimed to elucidate the scaling properties of purple soil PSDs by applying multifractal characterization. Results indicate that the PSDs of purple soils demonstrate clear multifractal behaviour, with generalised dimension and multifractal singularity spectra showing sigma and left deviating unimodal convex-up curves, respectively. By comparing with soils under other land-use types, the present study found that forestland purple soil is characterised by coarser granularity and more complex PSD, and has the minimum volumetric fractal dimension and the maximum generalised dimensions. No statistically significant correlation was observed between multifractal parameters and soil texture separates, except for that between the Ho spacing diaeresis lder exponent of order zero and the clay fraction (p < 0.05). In addition, most of the multifractal parameters do not exhibit statistically significant differences among soils under different land-use types (p < 0.05). The findings of the present study highlight that the effect of current land use on purple soil PSDs is limited and complex at a small watershed scale, and that the legacy effect of historical land use also plays a role in the evolution of purple soil PSDs. Overall, our findings can provide a reference for comprehensive understanding the influence of land use on purple soil quality. |
| 资助项目 | National Natural Science Foundation of China[U2040207] ; National Natural Science Foundation of China[41977075] ; Science Fund for Distinguished Young Scholars of Chongqing[cstc2019jcyjjqX0025] ; Science Fund for Distinguished Young Scholars of Chongqing[cstc2021jcyj-jqX0026] ; Chongqing Talent Program[CQYC201905009] ; Chongqing Water Resources Bureau[5000002021BF40001] |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000798048000001 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/16242]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Bao, Yuhai; He, Xiubin |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 3.Chongqing Key Lab Earth Surface Proc & Environm Re, Chongqing 401331, Peoples R China 4.Southwest Univ, Sch Geog Sci, Chongqing 400715, Peoples R China 5.Zhejiang Univ, Coll Environm & Resource Sci, Hangzhou 310058, Peoples R China 6.Chinese Acad Sci, Inst Mt Hazards & Environm, 9,Block 4,South Remin Rd, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jinlin,Bao, Yuhai,Wei, Jie,et al. Scaling properties of particle-size distributions of purple soils in a small agricultural watershed: A multifractal analysis[J]. CATENA,2022,215:10. |
| APA | Li, Jinlin.,Bao, Yuhai.,Wei, Jie.,He, Xiubin.,Tang, Qiang.,...&Wang, Mingfeng.(2022).Scaling properties of particle-size distributions of purple soils in a small agricultural watershed: A multifractal analysis.CATENA,215,10. |
| MLA | Li, Jinlin,et al."Scaling properties of particle-size distributions of purple soils in a small agricultural watershed: A multifractal analysis".CATENA 215(2022):10. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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