Performance of soil particle-size distribution models for describing deposited soils adjacent to constructed dams in the China Loess Plateau
文献类型：SCI/SSCI论文
| 作者 | Zhao P. ; Shao M. A. ; Horton R. |
| 发表日期 | 2011 |
| 关键词 | deposited soils parametric models particle-size distribution sand proportion Loess Plateau water-retention texture parameters equation |
| 英文摘要 | Soil particle-size distributions (PSD) have been used to estimate soil hydraulic properties. Various parametric PSD models have been proposed to describe the soil PSD from sparse experimental data. It is important to determine which PSD model best represents specific soils. Fourteen PSD models were examined in order to determine the best model for representing the deposited soils adjacent to dams in the China Loess Plateau; these were: Skaggs (S-1, S-2, and S-3), fractal (FR), Jaky (J), Lima and Silva (LS), Morgan (M), Gompertz (G), logarithm (L), exponential (E), log-exponential (LE), Weibull (W), van Genuchten type (VG) as well as Fredlund (F) models. Four-hundred and eighty samples were obtained from soils deposited in the Liudaogou catchment. The coefficient of determination (R (2)), the Akaike's information criterion (AIC), and the modified AIC (mAIC) were used. Based upon R (2) and AIC, the three- and four-parameter models were both good at describing the PSDs of deposited soils, and the LE, FR, and E models were the poorest. However, the mAIC in conjunction with R (2) and AIC results indicated that the W model was optimum for describing PSD of the deposited soils for emphasizing the effect of parameter number. This analysis was also helpful for finding out which model is the best one. Our results are applicable to the China Loess Plateau. |
| 出处 | Acta Geophysica |
| 卷 | 59 |
| 期 | 1 |
| 页 | 124-138 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1895-6572 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/22290]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Zhao P.,Shao M. A.,Horton R.. Performance of soil particle-size distribution models for describing deposited soils adjacent to constructed dams in the China Loess Plateau. 2011. |
入库方式： OAI收割
来源：地理科学与资源研究所
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