Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL092438 |
Impacts of engineered diversions and natural avulsions on delta-lobe stability | |
Brandee N. Carlson; Jeffrey A. Nittrouer; Travis E. Swanson; Andrew, J Moodie; Tian Y. Dong; Hongbo Ma; Gail C. Kineke; Minglong Pan; Yuanjiang Wang | |
2021-06-16 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Reduced sediment supply and rising sea levels are driving land submergence on deltas worldwide, motivating engineering practices that divert water and sediment to sustain coastal landforms. However, lobe response following channel abandonment by diversions has not been constrained by field-scale studies. Herein, avulsion and engineered diversion scenarios are explored for the Huanghe delta (China), where three lobes were abandoned in the last forty years. Two lobes were completely cut off by diversions, and one naturally by an avulsion. Shoreline retreat rates are strikingly different: ∼400 m/yr for diverted lobes and ∼90 m/yr for avulsed lobe. We hypothesize that this variability is linked to vegetal cover across lobes, and therefore the capacity to buffer hydrodynamic reworking of shoreface sediment. Furthermore, the vegetal cover is related to lobe salinity and elevation, which vary by abandonment style. We offer this as a case study to inform about the efficacy of future delta diversions. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/330779 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Brandee N. Carlson,Jeffrey A. Nittrouer,Travis E. Swanson,et al. Impacts of engineered diversions and natural avulsions on delta-lobe stability[J]. Geophysical Research Letters,2021. |
APA | Brandee N. Carlson.,Jeffrey A. Nittrouer.,Travis E. Swanson.,Andrew, J Moodie.,Tian Y. Dong.,...&Yuanjiang Wang.(2021).Impacts of engineered diversions and natural avulsions on delta-lobe stability.Geophysical Research Letters. |
MLA | Brandee N. Carlson,et al."Impacts of engineered diversions and natural avulsions on delta-lobe stability".Geophysical Research Letters (2021). |
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