Estimating the spatial relationships between soil hydraulic properties and soil physical properties in the critical zone (0-100 m) on the Loess Plateau, China: A state-space modeling approach
Qiao, JB; Zhu, YJ; Jia, XX; Huang, LM; Shao, MA
2018
Source PublicationCATENA
ISSN0341-8162
Volume160Pages:385-393
AbstractSoil hydraulic properties (SHP) such as the soil water retention curve and soil saturated hydraulic conductivity (Ks) of the deep profile in the Earth's critical zone (CZ) are important factors for investigating the water cycle process in the CZ. However, details are lacking about the SHP for the deep profile as well as their relationships with other soil properties. In the present study, SHP were obtained for a 100-m profile by soil core drilling, where the objectives were to understand the spatial distributions of SHP and to quantify the relationships between SHP and soil properties based on state-space model analysis and linear regression analysis. The results showed that SHP ware not significantly related to the silt content and there was no cross-correlation between SHP and the soil organic carbon content. The soil physical properties (bulk density, sand content, and clay content) could account for most of the total variation in SHP. Compared with linear regression analysis, state space modeling described the spatial relationship between SHP and soil physical properties much better. This study provides information about the SHP in deep profiles, thereby provide important parameters for investigating the water cycling process in the CZ and for developing pedotransfer functions.
SubtypeJournal
KeywordEarth's critical zone Linear regression Soil hydraulic properties Spatial variation State-space model
Subject AreaGeology ; Agriculture ; Water Resources
WOS Subject ExtendedGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS KeywordORGANIC-CARBON ; FIELD-SCALE ; TIME-SERIES ; VARIABILITY ; WATER ; CONDUCTIVITY ; PREDICTION ; PARAMETERS ; GRASSLAND ; SCIENCE
Indexed BySCI
Language英语
WOS IDWOS:000414880400039
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/43959
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Qiao, JB,Zhu, YJ,Jia, XX,et al. Estimating the spatial relationships between soil hydraulic properties and soil physical properties in the critical zone (0-100 m) on the Loess Plateau, China: A state-space modeling approach[J]. CATENA,2018,160:385-393.
APA Qiao, JB,Zhu, YJ,Jia, XX,Huang, LM,&Shao, MA.(2018).Estimating the spatial relationships between soil hydraulic properties and soil physical properties in the critical zone (0-100 m) on the Loess Plateau, China: A state-space modeling approach.CATENA,160,385-393.
MLA Qiao, JB,et al."Estimating the spatial relationships between soil hydraulic properties and soil physical properties in the critical zone (0-100 m) on the Loess Plateau, China: A state-space modeling approach".CATENA 160(2018):385-393.
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