Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/NGEO3044 |
Carbon storage in the Mississippi River delta enhanced by environmental engineering | |
Shields, Michael R.1; Bianchi, Thomas S.1; Mohrig, David2; Hutchings, Jack A.1; Kenney, William F.3; Kolker, Alexander S.4,5; Curtis, Jason H.1 | |
2017-11-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2017 |
卷号 | 10期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | River deltas have contributed to atmospheric carbon regulation throughout Earth history, but functioning in the modern era has been impaired by reduced sediment loads, altered hydrologic regimes, increased global sea-level rise and accelerated subsidence. Delta restoration involves environmental engineering via river diversions, which utilize self-organizing processes to create prograding deltas. Here we analyse sediment cores from Wax Lake delta, a product of environmental engineering, to quantify the burial of organic carbon. We find that, despite relatively low concentrations of organic carbon measured in the cores (about 0.4%), the accumulation of about 3 T m(-2) of sediment over the approximate 60 years of delta building resulted in the burial of a significant amount of organic carbon (16 kg m(-2)). This equates to an apparent organic carbon accumulation rate of 250 +/- 23 g m(-2) yr(-1), which implicitly includes losses by carbon emissions and erosion. Our estimated accumulation rate for Wax Lake delta is substantially greater than previous estimates based on the top metre of delta sediments and comparable to those of coastal mangrove and marsh habitats. The sedimentation of carbon at the Wax Lake delta demonstrates the capacity of engineered river diversions to enhance both coastal accretion and carbon burial. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414031600015 |
WOS关键词 | GULF-OF-MEXICO ; ORGANIC-CARBON ; MANGROVE EXPANSION ; COASTAL WETLANDS ; CLIMATE-CHANGE ; SEDIMENTS ; PRESERVATION ; RESTORATION ; LOUISIANA ; BURIAL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/35162 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Univ Florida, Dept Geol Sci, Gainesville, FL 32611 USA; 2.Univ Texas Austin, Jackson Sch Geosci, Austin, TX 78712 USA; 3.Univ Florida, Land Use & Environm Change Inst, Gainesville, FL 32611 USA; 4.Louisiana Univ, Marine Consortium, 8124 Highway 56, Chauvin, LA 70344 USA; 5.Tulane Univ, Dept Earth & Environm Sci, New Orleans, LA 70118 USA |
推荐引用方式 GB/T 7714 | Shields, Michael R.,Bianchi, Thomas S.,Mohrig, David,et al. Carbon storage in the Mississippi River delta enhanced by environmental engineering[J]. NATURE GEOSCIENCE,2017,10(11). |
APA | Shields, Michael R..,Bianchi, Thomas S..,Mohrig, David.,Hutchings, Jack A..,Kenney, William F..,...&Curtis, Jason H..(2017).Carbon storage in the Mississippi River delta enhanced by environmental engineering.NATURE GEOSCIENCE,10(11). |
MLA | Shields, Michael R.,et al."Carbon storage in the Mississippi River delta enhanced by environmental engineering".NATURE GEOSCIENCE 10.11(2017). |
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