Feldspathic sandstone addition and its impact on hydraulic properties of sandy soil | |
Jia JC(贾俊超)2,3; Zhang PP(张萍萍)1; Yang XF(杨晓峰)2,3; Zhang XC(张兴昌)1,3 | |
刊名 | Canadian Journal of Soil Science |
2018-03-05 | |
卷号 | 98期号:3页码:399-406 |
关键词 | Feldspathic Sandstone Content Sandy Lands, Hydraulic Properties. Hydraulic Properties |
英文摘要 | 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. |
出版地 | 加拿大 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.iswc.ac.cn/handle/361005/8780] |
专题 | 水保所2018届毕业生论文 |
通讯作者 | Zhang XC(张兴昌) |
作者单位 | 1.Xingchang Zhang, Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China. 2.University of Chinese Academy of Sciences, Beijing 100049, China. 3.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; |
推荐引用方式 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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