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黄河三角洲新生湿地土壤粒径分布的分形特征

Fractal features of soil particle size distribution in newly formed wetlands in the Yellow River Delta.

作者信息

Yu Junbao, Lv Xiaofei, Bin Ma, Wu Huifeng, Du Siyao, Zhou Mo, Yang Yanming, Han Guangxuan

机构信息

Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal, Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Provincial Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003.

1] Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal, Zone Research (YIC), Chinese Academy of Sciences (CAS); Shandong Provincial Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai 264003 [2] University of Chinese Academy of Sciences, Beijing 100049, China.

出版信息

Sci Rep. 2015 May 27;5:10540. doi: 10.1038/srep10540.

DOI:10.1038/srep10540
PMID:26014107
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4650681/
Abstract

The characteristic of particle size distribution (PSD) in the newly formed wetlands in coast has seldom been studied. We applied fractal-scaling theory in assessing soil particle size distribution (PSD) features of newly formed wetlands in the Yellow River Delta (YRD), China. The singular fractal dimensions (D) values ranged from 1.82 to 1.90, the capacity dimension (D0) values ranged from 0.84 to 0.93, and the entropy dimension (D1) values ranged from 0.66 to 0.84. Constrained corresponding analysis revealed that 43.5% of the variance in soil PSD can be explained by environmental factors, including 14.7% by seasonal variation, 8.6% by soil depth, and 8.0% by vegetation type. The fractal dimensions D and D1 were sensitive with fine particles with size ranging less than 126 μm, and D0 was sensitive with coarse particles with size ranging between 126 μm to 2000 μm. Fractal analysis makes full use of soil PSD information, and offers a useful approach to quantify and assess the soil physical attributes in the newly formed wetland.

摘要

海岸带新生湿地的粒径分布（PSD）特征鲜有研究。我们运用分形标度理论评估了中国黄河三角洲（YRD）新生湿地的土壤粒径分布（PSD）特征。奇异分形维数（D）值在1.82至1.90之间，容量维数（D0）值在0.84至0.93之间，熵维数（D1）值在0.66至0.84之间。约束对应分析表明，土壤PSD中43.5%的变异可由环境因素解释，其中季节性变化占14.7%，土壤深度占8.6%，植被类型占8.0%。分形维数D和D1对粒径小于126μm的细颗粒敏感，而D0对粒径在126μm至2000μm之间的粗颗粒敏感。分形分析充分利用了土壤PSD信息，为量化和评估新生湿地的土壤物理属性提供了一种有用的方法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cfec/4650681/1820822e6efe/srep10540-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cfec/4650681/7c2802441bef/srep10540-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cfec/4650681/84ea1cad3b96/srep10540-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cfec/4650681/bd2d6b629336/srep10540-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cfec/4650681/b1798ed43e14/srep10540-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cfec/4650681/1820822e6efe/srep10540-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cfec/4650681/7c2802441bef/srep10540-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cfec/4650681/84ea1cad3b96/srep10540-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cfec/4650681/bd2d6b629336/srep10540-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cfec/4650681/b1798ed43e14/srep10540-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cfec/4650681/1820822e6efe/srep10540-f5.jpg

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