Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41467-020-15278-w |
Coral skeletons reveal the history of nitrogen cycling in the coastal Great Barrier Reef | |
Erler, Dirk V.1; Farid, Hanieh Tohidi1; Glaze, Thomas D.1; Carlson-Perret, Natasha L.1; Lough, Janice M.2 | |
2020-03-20 | |
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 | Australia |
英文摘要 | Anthropogenic nutrient discharge to coastal marine environments is commonly associated with excessive algal growth and ecosystem degradation. However in the world's largest coral reef ecosystem, the Great Barrier Reef (GBR), the response to enhanced terrestrial nutrient inputs since European settlement in the 1850's remains unclear. Here we use a 333 year old composite record (1680-2012) of N-15/N-14 in coral skeleton-bound organic matter to understand how nitrogen cycling in the coastal GBR has responded to increased anthropogenic nutrient inputs. Our major robust finding is that the coral record shows a long-term decline in skeletal N-15/N-14 towards the present. We argue that this decline is evidence for increased coastal nitrogen fixation rather than a direct reflection of anthropogenic nitrogen inputs. Reducing phosphorus discharge and availability would short-circuit the nitrogen fixation feedback loop and help avoid future acute and chronic eutrophication in the coastal GBR. Coastal pollution degrades ecosystems, but long term impacts are unknown in Australia's Great Barrier Reef. Using a 333 year record of coral skeleton nitrogen isotopes, Erler and colleagues show that increasing nutrient inputs since European settlement have led to unexpected feedback responses. |
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:000522096100020 |
WOS关键词 | ISOTOPIC COMPOSITION ; WATER-QUALITY ; EUTROPHICATION ; PHOSPHORUS ; DELTA-N-15 ; NUTRIENTS ; SEDIMENTS ; NORTHERN ; LAGOON ; ZOOPLANKTON |
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/249648 |
专题 | 资源环境科学 |
作者单位 | 1.Southern Cross Univ, Sch Environm Sci & Engn, Ctr Coastal Biogeochem Res, Lismore, NSW 2480, Australia; 2.Australian Inst Marine Sci, Townsville, Qld 4810, Australia |
推荐引用方式 GB/T 7714 | Erler, Dirk V.,Farid, Hanieh Tohidi,Glaze, Thomas D.,et al. Coral skeletons reveal the history of nitrogen cycling in the coastal Great Barrier Reef[J]. NATURE COMMUNICATIONS,2020,11(1). |
APA | Erler, Dirk V.,Farid, Hanieh Tohidi,Glaze, Thomas D.,Carlson-Perret, Natasha L.,&Lough, Janice M..(2020).Coral skeletons reveal the history of nitrogen cycling in the coastal Great Barrier Reef.NATURE COMMUNICATIONS,11(1). |
MLA | Erler, Dirk V.,et al."Coral skeletons reveal the history of nitrogen cycling in the coastal Great Barrier Reef".NATURE COMMUNICATIONS 11.1(2020). |
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