Controls on spatiotemporal heterogeneity and evolution of debris flows along a traffic corridor affected by the strong Wenchuan earthquake
文献类型：期刊论文
| 作者 | Jin, Wen1; Zhang, Guotao2 |
| 刊名 | CATENA
 |
| 出版日期 | 2025-11-01 |
| 卷号 | 259页码:109356 |
| 关键词 | Post-earthquake debris flow Spatiotemporal heterogeneity Evolution Geographical detectors Cluster analysis Traffic corridor |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2025.109356 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | The 2008 Wenchuan earthquake produced numerous loose materials with serious impact on the occurrence of debris flow within the affected region, notably impeding the traffic safety transport and local economic recovery. Given its extended duration of earthquake aftermath and its significance as a traffic corridor, Wenchuan County was chosen as the primary study area for examining the evolution of spatiotemporal heterogeneity and determinants of post-earthquake debris flows. 166 debris flow events across 69 catchments in this region from 2008 to 2019 were compiled. Results revealed a marked surge in debris flow events, with pronounced spatial variations observed during different post-earthquake phases. Notably, the epicentre of these debris' flows transitioned away from the earthquake's epicentre over time. According to the duration and frequency of debris flow activity, the evolution of debris flow was divided into five distinct types: two types with low loose material supply have entered the recovery stage of debris flow, and three types with high loose material supply and heavy precipitation are still in the unstable stage of debris flow activity. To ascertain the determining factors for these varying debris flow patterns, 11 parameters encompassing topography, earthquake effects, and loose material availability, were analysed using Geographical detectors. The proximity to the fault and the amount of precipitation was found to profoundly impact the evolution of different debris flow types, as evidenced by influence indicators of 0.4211 and 0.3725 respectively. Our findings could offer valuable theoretical implications for tailored postearthquake debris flow mitigation strategies, thereby bolstering disaster preparedness. |
| URL标识 | 查看原文 |
| WOS关键词 | TRIGGERED LANDSLIDES ; THRESHOLD ; RAINFALL ; IMPACT ; RIVER ; AREA |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001549896100001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/215584]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Zhang, Guotao |
| 作者单位 | 1.Minist Emergency Management, Natl Disaster Reduct Ctr China, Beijing 100124, Peoples R China; 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Wen,Zhang, Guotao. Controls on spatiotemporal heterogeneity and evolution of debris flows along a traffic corridor affected by the strong Wenchuan earthquake[J]. CATENA,2025,259:109356. |
| APA | Jin, Wen,&Zhang, Guotao.(2025).Controls on spatiotemporal heterogeneity and evolution of debris flows along a traffic corridor affected by the strong Wenchuan earthquake.CATENA,259,109356. |
| MLA | Jin, Wen,et al."Controls on spatiotemporal heterogeneity and evolution of debris flows along a traffic corridor affected by the strong Wenchuan earthquake".CATENA 259(2025):109356. |
入库方式： OAI收割
来源：地理科学与资源研究所
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