干旱区生态环境知识资源中心(Arid): Fractal features of soil grain-size distribution in a typical Tamarix cones in the Taklimakan Desert, China

Arid

DOI	10.1038/s41598-022-20755-x
	Fractal features of soil grain-size distribution in a typical Tamarix cones in the Taklimakan Desert, China
	Dong, Zhengwu; Mao, Donglei; Ye, Mao; Li, Shengyu; Ma, Xiaodong; Liu, Suiyunhao
通讯作者	Dong, ZW
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2022
卷号	12 期号:1
英文摘要	Tamarix cones play key roles in preventing sand erosion and maintaining regional ecosystem stability. This study aimed to explore the characteristics of soil grain size distribution (GSD) in Tamarix cones across the Taklimakan Desert, verify the relationships between soil grain composition and the fractal dimension, and analyze the relationships between soil GSD and environmental factors. Soils of the Tamarix cones from 0 to 500 cm soil depth were sampled every 20 cm at four sites (Qiemo, Qira, Aral, and Tazhong) along the periphery to the hinterland of the Taklimakan Desert. A total of 300 soil samples were collected to measure soil grain sizes and soil properties. Soil grain size composition was dominated by silt and very fine sand, and the fraction of fine particles decreased and that of the coarse particles increased with soil depth, except for at Tazhong. This suggested that suspension-size particles are the main component of the soil GSD and decrease with the increasing depth in the profiles at the Tamarix cones. The soils were poorly and moderately poorly sorted. Kurtosis generally showed a mesokurtic peak, and the GSD was negatively skewed towards the coarser particles. The fractal dimensions of GSD decreased in the following order Qiemo (2.30) > Qira (2.07) > Aral (1.99) > Tazhong (1.96) because of the increase of coarse particles. The fractal dimension had a strong positive correlation with the clay and silt fractions, and a strong negative correlation with the sand fraction, indicating that the fractal dimension can reflect the characteristics of the soil GSD. The strong relationships between the fractal dimensions and selected soil properties indicate that the fractal dimension can not only quantify changes in soil properties, but also reflect the degree of desertification and degradation in the desert region. Considering the strong wind activities and different deposition sources in the Taklimakan Desert, this study provides a deep insight into the soil formation processes of Tamarix cones within extreme arid desert ecosystems.
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000862424900090
WOS关键词	DUNES
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394466
推荐引用方式 GB/T 7714	Dong, Zhengwu,Mao, Donglei,Ye, Mao,et al. Fractal features of soil grain-size distribution in a typical Tamarix cones in the Taklimakan Desert, China[J],2022,12(1).
APA	Dong, Zhengwu,Mao, Donglei,Ye, Mao,Li, Shengyu,Ma, Xiaodong,&Liu, Suiyunhao.(2022).Fractal features of soil grain-size distribution in a typical Tamarix cones in the Taklimakan Desert, China.SCIENTIFIC REPORTS,12(1).
MLA	Dong, Zhengwu,et al."Fractal features of soil grain-size distribution in a typical Tamarix cones in the Taklimakan Desert, China".SCIENTIFIC REPORTS 12.1(2022).