Pedotransfer functions developed for calculating soil saturated hydraulic conductivity in check dams on the Loess Plateau in China
文献类型：期刊论文
| 作者 | Cao, Taohong2; She, Dongli2,3; Zhang, Xiang1,3,4,5; Yang, Zhen2; Wang, Guangbo2 |
| 刊名 | VADOSE ZONE JOURNAL
 |
| 出版日期 | 2022-09-28 |
| 页码 | 13 |
| DOI | 10.1002/vzj2.20217 |
| 通讯作者 | She, Dongli(shedongli@hhu.edu.cn) |
| 英文摘要 | Soil saturated hydraulic conductivity (K-s) is a key soil hydraulic property that determines the hydrological cycle of check dam-dominated catchment areas. However, K-s data are lacking due to the difficulty of directly measuring this variable in deep soil layers. In this study, 45 soil profiles (0-200 cm) in 15 check dams in three typical watersheds (Xinshui River, Zhujiachuan, and Kuye River) in a hilly gully region on the Chinese Loess Plateau were selected, and a total of 586 soil samples were collected along the soil profiles. Backpropagation neural network (BPNN) and support vector regression (SVR) models based on the genetic algorithm (GA) were tested, and pedotransfer functions for K-s estimation were established for check dams on the Loess Plateau. Basic soil characteristics, such as soil depth, sand, silt, clay, soil organic matter, and bulk density, were adopted as the model inputs to estimate K-s. Combinations of these parameters could be used to suitably estimate K-s, and the models were found to require relatively few soil characteristics to achieve similar accuracy. In comparison to GA-BPNN, the GA-SVR model attained good practicability and was more stable in K-s prediction (the geometric mean error ratio was between 0.942 and 1.101; RMSE was between 0.069 and 0.073). Our research can make some contributions to the solution of land restoration and watershed governance on the Chinese Loess Plateau. |
| WOS关键词 | SUPPORT VECTOR MACHINE ; ORGANIC-CARBON ; SEDIMENT YIELD ; LAND-USE ; AGGREGATE STABILITY ; CRITICAL ZONE ; CATCHMENT ; EROSION ; IDENTIFICATION ; OPTIMIZATION |
| 资助项目 | Chinese Academy of Sciences (CAS) Light of West China Program |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000860618800001 |
| 出版者 | WILEY |
| 资助机构 | Chinese Academy of Sciences (CAS) Light of West China Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/184922]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | She, Dongli |
| 作者单位 | 1.Minist Educ, Yangling 712100, Shaanxi, Peoples R China 2.Hohai Univ, Coll Agr Sci & Engn, Nanjing 210098, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 4.Chinese Acad Sci, Res Ctr Soil & Water Conservat & Ecol Environm, Yangling 712100, Shaanxi, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Taohong,She, Dongli,Zhang, Xiang,et al. Pedotransfer functions developed for calculating soil saturated hydraulic conductivity in check dams on the Loess Plateau in China[J]. VADOSE ZONE JOURNAL,2022:13. |
| APA | Cao, Taohong,She, Dongli,Zhang, Xiang,Yang, Zhen,&Wang, Guangbo.(2022).Pedotransfer functions developed for calculating soil saturated hydraulic conductivity in check dams on the Loess Plateau in China.VADOSE ZONE JOURNAL,13. |
| MLA | Cao, Taohong,et al."Pedotransfer functions developed for calculating soil saturated hydraulic conductivity in check dams on the Loess Plateau in China".VADOSE ZONE JOURNAL (2022):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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