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Three-dimensional quantification of soil pore structure in wind-deposited loess under different vegetation types using industrial X-ray computed tomography

文献类型：期刊论文

作者Qiao, Jiangbo1; Liu, Xingting1; Zhu, Yuanjun1; Jia, Xiaoxu2; Shao, Ming'an1,2,3
刊名CATENA
出版日期2021-04-01
卷号199页码:12
ISSN号0341-8162
关键词Deep profile Soil structure Vegetation type X-ray computed tomography
DOI10.1016/j.catena.2020.105098
通讯作者Shao, Ming'an(shaoma@igsnrr.ac.cn)
英文摘要Quantifying the soil pore structure is critical for understanding plant growth and water/solute movements in the soil. However, most previous studies quantified the soil pore structure in a shallow layer by using low resolution medical computed tomography (CT), whereas few have quantified the soil pore structure in deep soil layers with high resolution CT. In this study, we quantified the soil pore structure of wind-deposited loess under different vegetation types (wheat, weeds, apple orchard, and Robinia pseudoacacia) at depths from 0 to 4.5 m by industrial CT. The results showed that the soil pore number and porosity tended to decreased with depth, but there were no significance differences below 2 m among all vegetation types. For different depths and vegetation types, the number of pores measuring 0-100 mu m was highest, followed by those measuring. 100-500 mu m, and lowest for those measuring > 1000 mu m. The contribution of pores measuring 100-500 mu m to the total pore volume was highest. The variations in the connectivity and surface area density were also focused mainly within the depth down to 2 m, and the variations were minor below 2 m. There were no significant differences in the bulk density and soil pore characteristics under different vegetation types, except for weeds. The results obtained in this study provide insights into the interactions between vegetation and soil water, as well as the hydrological processes for the wind-deposited loess.
WOS关键词MACROPORES ; IMAGE ; FERTILIZATION ; FIELDS
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; [2019TQ0266]
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
出版者ELSEVIER
WOS记录号WOS:000608022600015
资助机构Strategic Priority Research Program of Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/136291]  
专题中国科学院地理科学与资源研究所
通讯作者Shao, Ming'an
作者单位1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Agr Loess Plate, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Qiao, Jiangbo,Liu, Xingting,Zhu, Yuanjun,et al. Three-dimensional quantification of soil pore structure in wind-deposited loess under different vegetation types using industrial X-ray computed tomography[J]. CATENA,2021,199:12.
APA Qiao, Jiangbo,Liu, Xingting,Zhu, Yuanjun,Jia, Xiaoxu,&Shao, Ming'an.(2021).Three-dimensional quantification of soil pore structure in wind-deposited loess under different vegetation types using industrial X-ray computed tomography.CATENA,199,12.
MLA Qiao, Jiangbo,et al."Three-dimensional quantification of soil pore structure in wind-deposited loess under different vegetation types using industrial X-ray computed tomography".CATENA 199(2021):12.

入库方式： OAI收割

来源：地理科学与资源研究所

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