Multifractal parameters reveal the impacts of shrub encroachment on soil particle size distribution (PSD) in a coastal wetland of the Yellow River Delta
文献类型：期刊论文
| 作者 | Liu, Meifang; Wang, De ; Tian, Xinpeng; Wu, Yuru; Bi, Xiaoli
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| 刊名 | JOURNAL OF COASTAL CONSERVATION
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 28期号:4页码:13 |
| 关键词 | Shrub encroachment Soil particle size distribution (PSD) Multifractal analysis Coastal wetlands The Yellow River Delta |
| ISSN号 | 1400-0350 |
| DOI | 10.1007/s11852-024-01062-1 |
| 通讯作者 | Bi, Xiaoli(xlbi@yic.ac.cn) |
| 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. |
| WOS关键词 | WOODY PLANT ENCROACHMENT ; OASIS-DESERT ECOTONE ; LAND-USE TYPES ; LOESS PLATEAU ; COMMUNITIES ; GRASSLANDS ; MANAGEMENT |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001263474200001 |
| 资助机构 | National Key Research and Development Program of China ; Natural Science Foundation of Shandong Province, China |
| 源URL | [http://ir.yic.ac.cn/handle/133337/35861]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 烟台海岸带研究所_海岸带信息集成与综合管理实验室 |
| 通讯作者 | Bi, Xiaoli |
| 作者单位 | Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China |
| 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]. JOURNAL OF COASTAL CONSERVATION,2024,28(4):13. |
| 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),13. |
| 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):13. |
入库方式： OAI收割
来源：烟台海岸带研究所
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