ISWC OpenIR  > 水保所2018--2019届毕业生论文
Feldspathic sandstone addition and its impact on hydraulic properties of sandy soil
Jia JC(贾俊超)1,2; Zhang PP(张萍萍)3; Yang XF(杨晓峰)1,2; Zhang XC(张兴昌)1,3
2018-03-05
Source PublicationCanadian Journal of Soil Science
Volume98Issue:3Pages:399-406
Abstract

Feldspathic 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 a1 of wetting front (6.901–1.174) in the empirical equation (X = a1tb1). 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. Hydraulic Properties
MOST Discipline Catalogue农学 ; 农学::农业资源与环境
Indexed BySCI
Publication Place加拿大
Language英语
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8780
Collection水保所2018--2019届毕业生论文
Corresponding AuthorZhang XC(张兴昌)
Affiliation1.State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China;
2.University of Chinese Academy of Sciences, Beijing 100049, China.
3.Xingchang Zhang, Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China.
Recommended Citation
GB/T 7714
Jia JC,Zhang PP,Yang XF,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 JC,Zhang PP,Yang XF,&Zhang XC.(2018).Feldspathic sandstone addition and its impact on hydraulic properties of sandy soil.Canadian Journal of Soil Science,98(3),399-406.
MLA Jia JC,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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