ISWC OpenIR  > 水保所科研产出--SCI  > 2018--SCI
Development of pedotransfer functions for soil hydraulic properties in the critical zone on the Loess Plateau, China
Jiangbo Qiao1; Yuanjun Zhu2; Xiaoxu Jia3; Laiming Huang3; Ming'an Sha2,3; Zhu, YJ (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Agr Loess Plate, Yangling 712100, Shaanxi, Peoples R China.
SubtypeArticle
2018
Source PublicationHYDROLOGICAL PROCESSES
ISSN0885-6087
description.correspondentemailzhuyuanjun@foxmail.com
Volume32Issue:18Pages:2915-2921
AbstractSoil hydraulic properties (SHPs) including the soil water retention curve and saturated soil hydraulic conductivity (Ks) are crucial input data for simulations of soil water and solute transport in the Earth's critical zone. However, obtaining direct measurements of SHPs at a wide range of scales is time consuming and expensive. Pedotransfer functions (PTFs) are employed as an alternative method for indirectly estimating these parameters based on readily measured soil properties. However, PTFs for SHPs for the deep soil layer in the Earth's critical zone are lacking. In this study, we developed new PTFs in the deep soil profile for Ks and soil water retention curve on the Loess Plateau, China, which were fitted with the van Genuchten equation. In total, 206 data sets comprising the hydraulic and basic soil properties were obtained from three typical sites. Samples were collected from the top of the soil profile to the bedrock by soil core drilling. PTFs were developed between the SHPs and basic soil properties using stepwise multiple linear regression. The PTFs obtained the best predictions for Ks (R-adj(2)=0.561) and the worst for van Genuchten (R-adj(2)=0.474). The bulk density and sand content were important input variables for predicting Ks, , and s, and bulk density, clay content, and soil organic carbon were important for n. The PTFs developed in this study performed better than existing PTFs. This study contains the first set of PTFs of SHPs to be developed for the deep profile on the Loess Plateau, and they may be applicable to other regions.
KeywordEarth's Critical Zone Loess Plateau Pedotransfer Functions Soil Hydraulic Properties
Subject AreaWater Resources
DOI10.1002/hyp.13216
Indexed BySCI
Publication Place111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Language英语
WOS IDWOS:000442343500010
PublisherWILEY
Funding OrganizationKey Deployment Project of the Chinese Academy [KFZD-SW-306] ; Key Deployment Project of the Chinese Academy [KFZD-SW-306] ; National Natural Science Foundation of China [41530854, 41371242] ; National Natural Science Foundation of China [41530854, 41371242] ; international cooperation programme between China and England [41571130081] ; international cooperation programme between China and England [41571130081]
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Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8191
Collection水保所科研产出--SCI_2018--SCI
Corresponding AuthorZhu, YJ (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Agr Loess Plate, Yangling 712100, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, Coll Resources & Environm, Yangling, Shaanxi, Peoples R China
2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Agr Loess Plate, Yangling 712100, Shaanxi, Peoples R China
3.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Jiangbo Qiao,Yuanjun Zhu,Xiaoxu Jia,et al. Development of pedotransfer functions for soil hydraulic properties in the critical zone on the Loess Plateau, China[J]. HYDROLOGICAL PROCESSES,2018,32(18):2915-2921.
APA Jiangbo Qiao,Yuanjun Zhu,Xiaoxu Jia,Laiming Huang,Ming'an Sha,&Zhu, YJ .(2018).Development of pedotransfer functions for soil hydraulic properties in the critical zone on the Loess Plateau, China.HYDROLOGICAL PROCESSES,32(18),2915-2921.
MLA Jiangbo Qiao,et al."Development of pedotransfer functions for soil hydraulic properties in the critical zone on the Loess Plateau, China".HYDROLOGICAL PROCESSES 32.18(2018):2915-2921.
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