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Feldspathic sandstone addition and its impact on hydraulic properties of sandy soil
Jia, Junchao1,2; Zhang, Pingping1,3,4; Yang, Xiaofeng1,2; Zhang, Xingchang1,3
2018-09-01
Source PublicationCANADIAN JOURNAL OF SOIL SCIENCE
Volume98Issue:3Pages:399-406
SubtypeArticle
AbstractFeldspathic sandstone could be used as an effective conditioner to improve the physical quality of sandy soil, and increase the crop yield there. To determine the effects of feldspathic sandstone content on soil hydraulic properties in a sandy soil, the present study added 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100% (no sandy soil) of feldspathic sandstone to sandy soil. Changes in hydraulic parameters were investigated and the results showed addition of feldspathic sandstone increased saturated water content by 37%-61% and field capacity by 29%-44%, and decreased saturated hydraulic conductivity from 10.19 to 0.58 cm h(-1) of the sandy soil. Further data analysis demonstrated that with increasing content of feldspathic sandstone, the parameter n of soil water retention curve in Van Genuchten model dropped from 1.807 to 1.333. The same decreasing trend is detected in parameter a of infiltration rate (3.841-0.703) in Kostiakov formula (i = at(-b)) and parameter a(1) of wetting front (6.901-1.174) in the empirical equation (X = a(1)t(b1)). In terms of hydraulic parameters, 40% feldspathic sandstone and 60% sandy soil, optimally matching indices of loess soil, were the best mixing ratio for sandy land restoration.
KeywordFeldspathic Sandstone Content Sandy Lands Hydraulic Properties
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1139/cjss-2017-0111
WOS KeywordWATER-RETENTION ; SIZE DISTRIBUTION ; PISHA SANDSTONE ; CONDUCTIVITY ; CLAY ; PARAMETERS ; CAPACITY ; INFILTRATION ; IMPROVEMENT ; EQUATION
Indexed BySCI
Language英语
WOS Research AreaAgriculture
WOS SubjectSoil Science
WOS IDWOS:000443434000002
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5341
Collection生态环境研究室
Affiliation1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Jia, Junchao,Zhang, Pingping,Yang, Xiaofeng,et al. Feldspathic sandstone addition and its impact on hydraulic properties of sandy soil[J]. CANADIAN JOURNAL OF SOIL SCIENCE,2018,98(3):399-406.
APA Jia, Junchao,Zhang, Pingping,Yang, Xiaofeng,&Zhang, Xingchang.(2018).Feldspathic sandstone addition and its impact on hydraulic properties of sandy soil.CANADIAN JOURNAL OF SOIL SCIENCE,98(3),399-406.
MLA Jia, Junchao,et al."Feldspathic sandstone addition and its impact on hydraulic properties of sandy soil".CANADIAN JOURNAL OF SOIL SCIENCE 98.3(2018):399-406.
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