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Multifractal characteristics of particle size distributions (50-200 m) in soils in the vadose zone on the Loess Plateau, China

文献类型：期刊论文

作者Qiao, Jiangbo1; Zhu, Yuanjun1; Jia, Xiaoxu3; Shao, Ming'an1,2,3
刊名SOIL & TILLAGE RESEARCH
出版日期2021
卷号205页码:7
ISSN号0167-1987
关键词Deep loess soil Fractal theory The Loess Plateau Particle size distribution Vadose zone
DOI10.1016/j.still.2020.104786
通讯作者Zhu, Yuanjun(zhuyuanjun@foxmail.com)
英文摘要The soil particle size distribution (PSD) is an important and basic physical property that determines many other chemical, physical, and biological properties of soil. Thus, quantitatively characterizing the soil PSD is important. However, the PSDs have not been characterized previously in deep soil profiles on the Loess Plateau, China. Therefore, in the present study, we employed single fractal theory and multifractal theory to quantitatively characterize these PSDs. Soil samples (50-200 m) were collected from the top of the soil profile down to the bedrock by drilling at five sites on the Loess Plateau in China. The results showed that the sand content had the highest coefficient of variation (CV) whereas the silt content had the lowest CV. Single fractal dimension (D) analysis detected significant positive relationships between D and the silt and clay contents, but a significant negative relationship with the sand content. Multifractal analysis indicated that the capacity dimension (D-0) values at five sites tended to increase from south to north, whereas a decreasing trend was determined for the information dimension/capacity dimension (D-1/D-0). Yangling had the lowest Delta a and Delta D values, whereas Ansai had the highest. The Delta f values were highest at Ansai and Shenmu. Our results are important to understand the soil physical properties and to estimate the soil hydraulic properties in deep profiles on the Loess Plateau.
WOS关键词LAND-USE TYPES ; PATTERNS ; TEXTURE ; RIVER
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; National Natural Science Foundation of China[41701243] ; [2019TQ0266]
WOS研究方向Agriculture
语种英语
出版者ELSEVIER
WOS记录号WOS:000582696400031
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/156597]  
专题中国科学院地理科学与资源研究所
通讯作者Zhu, Yuanjun
作者单位1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Agr Loess Plate, Yangling 712100, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Qiao, Jiangbo,Zhu, Yuanjun,Jia, Xiaoxu,et al. Multifractal characteristics of particle size distributions (50-200 m) in soils in the vadose zone on the Loess Plateau, China[J]. SOIL & TILLAGE RESEARCH,2021,205:7.
APA Qiao, Jiangbo,Zhu, Yuanjun,Jia, Xiaoxu,&Shao, Ming'an.(2021).Multifractal characteristics of particle size distributions (50-200 m) in soils in the vadose zone on the Loess Plateau, China.SOIL & TILLAGE RESEARCH,205,7.
MLA Qiao, Jiangbo,et al."Multifractal characteristics of particle size distributions (50-200 m) in soils in the vadose zone on the Loess Plateau, China".SOIL & TILLAGE RESEARCH 205(2021):7.

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来源：地理科学与资源研究所

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