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

doi:10.1016/j.still.2020.104786

	Multifractal characteristics of particle size distributions (50-200 m) in soils in the vadose zone on the Loess Plateau, China
	Qiao, Jiangbo 1; Zhu, Yuanjun 1; Jia, Xiaoxu 2; Shao, Ming'an 1,2,3
刊名	SOIL & TILLAGE RESEARCH
	2021
卷号	205 页码:7
关键词	Deep loess soil Fractal theory The Loess Plateau Particle size distribution Vadose zone
ISSN号	0167-1987
DOI	10.1016/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.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; National Natural Science Foundation of China[41701243] ; [2019TQ0266]
WOS关键词	LAND-USE TYPES ; PATTERNS ; TEXTURE ; RIVER
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
内容类型	期刊论文
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.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, 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.