Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-020-16994-z |
Coastal sedimentation across North America doubled in the 20(th) century despite river dams | |
Rodriguez, A. B.1,2; McKee, B. A.2; Miller, C. B.1,2; Bost, M. C.1,2; Atencio, A. N.2 | |
2020-06-26 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2020 |
卷号 | 11期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The proliferation of dams since 1950 promoted sediment deposition in reservoirs, which is thought to be starving the coast of sediment and decreasing the resilience of communities to storms and sea-level rise. Diminished river loads measured upstream from the coast, however, should not be assumed to propagate seaward. Here, we show that century-long records of sediment mass accumulation rates (gcm(-2)yr(-1)) and sediment accumulation rates (cmyr(-1)) more than doubled after 1950 in coastal depocenters around North America. Sediment sources downstream of dams compensate for the river-sediment lost to impoundments. Sediment is accumulating in coastal depocenters at a rate that matches or exceeds relative sea-level rise, apart from rapidly subsiding Texas and Louisiana where water depths are increasing and intertidal areas are disappearing. Assuming no feedbacks, accelerating global sea-level rise will eventually surpass current sediment accumulation rates, underscoring the need for including coastal-sediment management in habitat-restoration projects. The proliferation of dams since 1950 has promoted sediment deposition in reservoirs, which is thought to be starving the coast of sediment and decreasing resistance to storms and sea-level rise. Here, the authors show that century-long records of sediment mass accumulation rates and sediment accumulation rates more than doubled after 1950 in coastal depocenters around North America. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000544947000009 |
WOS关键词 | SEA-LEVEL RISE ; SUSPENDED SEDIMENT ; LAND-USE ; ACCUMULATION RATES ; SPATIAL DYNAMICS ; IMPACTS ; BAY ; ESTUARY ; CONSERVATION ; VARIABILITY |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/278167 |
专题 | 资源环境科学 |
作者单位 | 1.Univ North Carolina Chapel Hill, Inst Marine Sci, 3431 Arendell St, Morehead City, NC 28557 USA; 2.Univ North Carolina Chapel Hill, Dept Marine Sci, Chapel Hill, NC 27599 USA |
推荐引用方式 GB/T 7714 | Rodriguez, A. B.,McKee, B. A.,Miller, C. B.,et al. Coastal sedimentation across North America doubled in the 20(th) century despite river dams[J]. NATURE COMMUNICATIONS,2020,11(1). |
APA | Rodriguez, A. B.,McKee, B. A.,Miller, C. B.,Bost, M. C.,&Atencio, A. N..(2020).Coastal sedimentation across North America doubled in the 20(th) century despite river dams.NATURE COMMUNICATIONS,11(1). |
MLA | Rodriguez, A. B.,et al."Coastal sedimentation across North America doubled in the 20(th) century despite river dams".NATURE COMMUNICATIONS 11.1(2020). |
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