干旱区生态环境知识资源中心(Arid): Multifractal parameters reveal the impacts of shrub encroachment on soil particle size distribution (PSD) in a coastal wetland of the Yellow River Delta

Arid

DOI	10.1007/s11852-024-01062-1
	Multifractal parameters reveal the impacts of shrub encroachment on soil particle size distribution (PSD) in a coastal wetland of the Yellow River Delta
	Liu, Meifang; Wang, De; Tian, Xinpeng; Wu, Yuru; Bi, Xiaoli
通讯作者	Bi, XL
来源期刊	JOURNAL OF COASTAL CONSERVATION
ISSN	1400-0350
EISSN	1874-7841
出版年	2024
卷号	28 期号:4
英文摘要	Shrub encroachment in coastal wetlands leads to heterogeneous distribution of soil resources, which may affect soil particle size distribution (PSD). Fractal theory was widely used to quantify the characteristics of soil PSD. However, exploration on the spatial changes in PSD of deep soil layers due to shrub-encroached vegetation succession is limited. Multifractal theory and GIS spatial analysis tools were used to spatially quantify the changes in soil PSD at different soil layers (0-80 cm) in a coastal wetland landscape (100 x 120 m) encroached by a native shrub Tamarix chinensis in the Yellow River Delta (YRD), China. We also discussed the potential mechanisms of soil PSD changes contributed by shrub encroachment. The results showed that higher content of fine sand, medium sand and coarse sand, while lower content of silt and very fine sand in 0-10 cm were observed in T.chinensis patches than in single T. chinensis and bare land (p < 0.05). In 30-40 cm, however, T.chinensis patches have higher soil clay content (p < 0.05). The generalized dimensional spectrum and multifractal parameters indicated that soil PSD in shrub patch area exhibited greater width and higher heterogeneity. Multifractal method could explain the changes of soil PSD better than single fractal dimension (D), and the Capacity Dimension (D0) was the most effective one to quantify the soil PSD characteristics. The values of D0 showed a clear order of shrub patch > single shrub > bare land in each layer. In addition, the D0 suggested that influences of T.chinensis on soil PSD can remain 70 cm below the surface in our case. Considering the complex sedimentary process in the YRD, the processes of water and wind erosion mediated by shrub encroachment, the positive feedback based on plant preferences and the mixed effects of shrub and grass species might promote the redistribution of soil particle size. Encroachment in coastal wetland of the YRD caused changes in soil PSD, especially at the surface soil layer. Multifractal parameters could quantify subtle characteristics of soil PSD in shrub-encroached area. Our work indicates that shrub encroachment in coastal wetland plays a significant role in altering regional and even global soil environments.
英文关键词	Shrub encroachment Soil particle size distribution (PSD) Multifractal analysis Coastal wetlands The Yellow River Delta
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001263474200001
WOS关键词	WOODY PLANT ENCROACHMENT ; OASIS-DESERT ECOTONE ; LAND-USE TYPES ; LOESS PLATEAU ; COMMUNITIES ; GRASSLANDS ; MANAGEMENT
WOS类目	Biodiversity Conservation ; Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404418
推荐引用方式 GB/T 7714	Liu, Meifang,Wang, De,Tian, Xinpeng,et al. Multifractal parameters reveal the impacts of shrub encroachment on soil particle size distribution (PSD) in a coastal wetland of the Yellow River Delta[J],2024,28(4).
APA	Liu, Meifang,Wang, De,Tian, Xinpeng,Wu, Yuru,&Bi, Xiaoli.(2024).Multifractal parameters reveal the impacts of shrub encroachment on soil particle size distribution (PSD) in a coastal wetland of the Yellow River Delta.JOURNAL OF COASTAL CONSERVATION,28(4).
MLA	Liu, Meifang,et al."Multifractal parameters reveal the impacts of shrub encroachment on soil particle size distribution (PSD) in a coastal wetland of the Yellow River Delta".JOURNAL OF COASTAL CONSERVATION 28.4(2024).