A three-parameter runoff probability model for long-slope croplands in the black soil region of Northeast China
文献类型：期刊论文
| 作者 | Huang, Yiting1,2; Gao, Yuhao3; Chen, Junxi1,2; Feng, Ziheng4; Zhang, Yi5; He, Yangbo1,2; Tian, Zhengchao1,2; Lin, Lirong1,2; Chen, Jiazhou1,2 |
| 刊名 | JOURNAL OF HYDROLOGY-REGIONAL STUDIES
 |
| 出版日期 | 2025-08-01 |
| 卷号 | 60页码:102471 |
| 关键词 | Slope length Runoff coefficient Probabilistic model Cropland erosion Slope hydrology |
| DOI | 10.1016/j.ejrh.2025.102471 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Study region: The Mangang black soil region of Northeast China, characterized by long or ultralong slopes (100-4000 m), is experiencing severe water erosion. Study focus: Soil erosion has worsened, particularly on long slopes, due to precipitation variability and tillage disturbance. Existing models struggle to predict runoff because they fail to capture nonlinear shifts among multiple runoff-generation mechanisms. To address this, a probabilistic runoff model with three parameters (beta, mu, tau) was developed, coupling infiltration, re-infiltration, and exfiltration with Hortonian, Betsonian, and Duncanian regimes. By extending the Sheridan framework with an exponential exfiltration function, the model estimates runoff coefficients based on slope length and soil saturation. It was validated using rainfall plots, field observations (1-600 m), and literature data, and benchmarked against the Sheridan model and HYDRUS-2D. New hydrological insights: The model reveals a hook-shaped nonlinear relationship between slope length and runoff coefficient (R2 =0.92-0.99, KGE=0.87-0.98), with a turning point (T-p, 100-200 m) marking the shift from decreasing to increasing runoff. A new threshold, z (incomplete saturation slope length), reflects saturation-driven exfiltration feedback, dividing slopes into: (1) Wetting zone (0-T-p): dominated by Hortonian runoff; (2) Transition zone (T-p-tau) with rapid exfiltration and gully initiation; (3) Saturated zone (>tau): dominated by Duncanian runoff. Compared with HYDRUS-2D, the model improves runoff distance estimation by 25 % and reduces runoff errors by 37-62 %, supporting adaptive land management. |
| URL标识 | 查看原文 |
| WOS关键词 | HYDRAULIC CONDUCTIVITY ; OVERLAND-FLOW ; RAINFALL ; EROSION ; VARIABILITY ; DETACHMENT ; CATCHMENT ; HILLSLOPE ; IMPACTS ; LENGTH |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001505142200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/214518]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Chen, Jiazhou |
| 作者单位 | 1.Huazhong Agr Univ, Coll Resources & Environm, Key Lab Arable Land Conservat Middle & Lower Reach, Minist Agr, Wuhan 430070, Peoples R China; 2.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China; 3.Changjiang River Sci Res Inst, Soil & Water Conservat Dept, Wuhan 430010, Peoples R China; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; 5.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Yiting,Gao, Yuhao,Chen, Junxi,et al. A three-parameter runoff probability model for long-slope croplands in the black soil region of Northeast China[J]. JOURNAL OF HYDROLOGY-REGIONAL STUDIES,2025,60:102471. |
| APA | Huang, Yiting.,Gao, Yuhao.,Chen, Junxi.,Feng, Ziheng.,Zhang, Yi.,...&Chen, Jiazhou.(2025).A three-parameter runoff probability model for long-slope croplands in the black soil region of Northeast China.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,60,102471. |
| MLA | Huang, Yiting,et al."A three-parameter runoff probability model for long-slope croplands in the black soil region of Northeast China".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 60(2025):102471. |
入库方式： OAI收割
来源：地理科学与资源研究所
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