Sediment microbes mediate the impact of nutrient loading on blue carbon sequestration by mixed seagrass meadows
文献类型：期刊论文
| 作者 | Liu, SL; Jiang, ZJ; Zhang, JP; Wu, YC; Huang, XP; Macreadie, PI |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2017 |
| 卷号 | 599页码:1479-1484 |
| 关键词 | Carbon sequestration Thalassia hemprichii Enhalus acoroides Microbes |
| 通讯作者 | xphuang@scsio.ac.cn |
| 中文摘要 | Recent studies have reported significant variability in sediment organic carbon (SOC) storage capacity among seagrass species, but the factors driving this variability are poorly understood, limiting our ability to make informed decisions about which seagrass types are optimal for carbon offsetting and why. Here we show that differences in SOC storage capacity among species within the same geomorphic environment can be explained (in part) by below-ground processes in response to nutrient load; specifically, differences in the activity of microbes harboured by morphologically-different seagrass species. We found that increasing nutrient load enhanced the relative contribution of seagrass and algal sources to SOC pools, boosting sediment microbial biomass and extra cellular enzyme activity within mixed seagrass meadows composed of Thalassia hemprichii and Enhalus acoroides, and thus possibly weaken the seagrass blue carbon sequestration capacity. The relative contribution of seagrass plant material to sediment bacterial organic carbon (BOC) and the influencing SOC-decomposing enzymes in E. acoroides meadows were half that of T. hemprichii meadows living side-by-side, even though the mixed seagrass meadows received SOC from the same sources. Overall this research suggests that microbial activity can vary significantly among seagrass species, thereby causing fine-scale (within-meadow) variability in SOC sequestration capacity in response to nutrient load. (C) 2017 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/16314]  |
| 专题 | 南海海洋研究所_中科院海洋生物资源可持续利用重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu, SL,Jiang, ZJ,Zhang, JP,et al. Sediment microbes mediate the impact of nutrient loading on blue carbon sequestration by mixed seagrass meadows[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,599:1479-1484. |
| APA | Liu, SL,Jiang, ZJ,Zhang, JP,Wu, YC,Huang, XP,&Macreadie, PI.(2017).Sediment microbes mediate the impact of nutrient loading on blue carbon sequestration by mixed seagrass meadows.SCIENCE OF THE TOTAL ENVIRONMENT,599,1479-1484. |
| MLA | Liu, SL,et al."Sediment microbes mediate the impact of nutrient loading on blue carbon sequestration by mixed seagrass meadows".SCIENCE OF THE TOTAL ENVIRONMENT 599(2017):1479-1484. |
入库方式： OAI收割
来源：南海海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。