干旱区生态环境知识资源中心(Arid): Fractal Approach to Measuring Electrical Conductivity Values of Soda Saline-Alkali Soils with Desiccation Cracks in the Songnen Plain, China

Arid

DOI	10.1007/s42729-023-01150-5
	Fractal Approach to Measuring Electrical Conductivity Values of Soda Saline-Alkali Soils with Desiccation Cracks in the Songnen Plain, China
	Ren, Jianhua; Xie, Ruifeng; Zhao, Yue; Zhang, Zhuopeng
通讯作者	Ren, JH
来源期刊	JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
ISSN	0718-9508
EISSN	0718-9516
出版年	2023
卷号	23 期号:2 页码:1953-1966
英文摘要	The objective of this study was to quantitatively analyze the ability of fractal dimension in characterizing the extent of desiccation cracking, and to develop a new method for salinity prediction of soda saline-alkali soil in Songnen Plain, China. Cracked soil samples with varying salinity levels were selected to quantitatively analyze the relationship between soil salinity and box-counting dimensions extracted from binary crack patterns under different denoising thresholds and four equal-partitions. A series of correlation analyses were also carried out between the electrical conductivity (EC) values and box-counting dimensions derived from different conditions. The relationship between EC values and box-counting dimensions reveals a clear correlation trend of an initial increase followed by a decrease in response to an increase in the denoising threshold (optimal threshold of 400 pixels); however, equal-partitions had no discernible effect on the correlation analysis results. Considering the factors including calculation time and accuracy, threshold of 400 pixels was selected to compute the box-counting dimensions and to develop exponential model for the prediction of soil EC with R-2 of modeling test above 0.61 and R-2 of validation test above 0.63. In addition, the results also indicate that the prediction accuracy of EC values decreased seriously given the box-counting above 1.8 since the soil salinity was obviously underestimated given high salinity levels. All the findings in this study contribute to the understanding of fractal dimensions can be selected as an effective indicator to characterize desiccation cracking for soil salinity estimation.
英文关键词	Soda saline-alkali soil Soil salinization Desiccation crack Fractal dimension Songnen Plain
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000921753200001
WOS关键词	MORPHOLOGY ; DIMENSION ; TOMOGRAPHY ; VERTISOL ; BEHAVIOR ; OASIS
WOS类目	Plant Sciences ; Environmental Sciences ; Soil Science
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397547
推荐引用方式 GB/T 7714	Ren, Jianhua,Xie, Ruifeng,Zhao, Yue,et al. Fractal Approach to Measuring Electrical Conductivity Values of Soda Saline-Alkali Soils with Desiccation Cracks in the Songnen Plain, China[J],2023,23(2):1953-1966.
APA	Ren, Jianhua,Xie, Ruifeng,Zhao, Yue,&Zhang, Zhuopeng.(2023).Fractal Approach to Measuring Electrical Conductivity Values of Soda Saline-Alkali Soils with Desiccation Cracks in the Songnen Plain, China.JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION,23(2),1953-1966.
MLA	Ren, Jianhua,et al."Fractal Approach to Measuring Electrical Conductivity Values of Soda Saline-Alkali Soils with Desiccation Cracks in the Songnen Plain, China".JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION 23.2(2023):1953-1966.