气候变化领域集成服务门户(CCPortal): Nitrogen dynamics within an estuarine seagrass meadow under heavy anthropogenic influence

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DOI	10.1016/j.marpolbul.2019.110628
	Nitrogen dynamics within an estuarine seagrass meadow under heavy anthropogenic influence
	Ashikin C.N.; Rozaimi M.; Arina N.; Fairoz M.; Hidayah N.
发表日期	2020
ISSN	0025326X
卷号	150
英文摘要	Nitrogen is essential for seagrass productivity but excesses in nitrogen exposure contribute to declines in meadow health. This study reports baseline data of bulk nitrogen loadings and contents in surficial sediments and seagrass tissues to determine the extent of nitrogen inputs in meadows of Sungai Pulai estuary (Johor, Malaysia). The sediment contained relatively low nitrogen loadings (mean range of 91–94 g N m−2) with likely origins from land-based sources. At the meadow-level, Enhalus acoroides, Cymodocea serrulata and Thalassia hemprichii are the most important species as nitrogen sinks. The highest δ15N values of seagrass tissues were recorded for T. hemprichii (10.7 ± 0.4‰), which indicated an elevated capacity for internal recycling of nitrogen. The data demonstrates the provision of ecosystem services by the meadows in mitigating excess nitrogen imported into the estuary. Seagrasses health, however, needs to be at optimum levels for the effectiveness of the meadow as a nutrient sink. © 2019 Elsevier Ltd
英文关键词	Biomass; Ecosystem services; Environmental change; Nutrient loadings; Sediment; δ15N
语种	英语
scopus关键词	Biomass; Ecosystems; Estuaries; Histology; Nutrients; Plants (botany); Sediments; Surficial sediments; Tissue; Anthropogenic influence; Ecosystem services; Environmental change; Land-based sources; Nitrogen dynamics; Nitrogen loading; Nutrient loading; Seagrass meadows; Nitrogen; anthropogenic effect; biomass; ecosystem service; environmental change; estuarine pollution; estuarine sediment; nitrogen isotope; seagrass meadow; analysis of variance; biomass; bulk density; Cymodocea serrulata; Enhalus acoroides; environmental monitoring; estuarine species; estuary; eutrophication; geographic distribution; growth rate; longevity; marine environment; nitrogen dynamics; nonhuman; permutation analysis of variance; plant growth; seagrass; Thalassia hemprichii; vegetation dynamics; Alismatales; ecosystem; estuary; grassland; Malaysia; nitrogen cycle; Johor; Malaysia; Pulai Estuary; West Malaysia; Cymodocea serrulata; Enhalus acoroides; Thalassia hemprichii; nitrogen; Alismatales; Ecosystem; Environmental Monitoring; Estuaries; Grassland; Malaysia; Nitrogen; Nitrogen Cycle
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149425
作者单位	Centre for Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, 43600, Malaysia
推荐引用方式 GB/T 7714	Ashikin C.N.,Rozaimi M.,Arina N.,et al. Nitrogen dynamics within an estuarine seagrass meadow under heavy anthropogenic influence[J],2020,150.
APA	Ashikin C.N.,Rozaimi M.,Arina N.,Fairoz M.,&Hidayah N..(2020).Nitrogen dynamics within an estuarine seagrass meadow under heavy anthropogenic influence.Marine Pollution Bulletin,150.
MLA	Ashikin C.N.,et al."Nitrogen dynamics within an estuarine seagrass meadow under heavy anthropogenic influence".Marine Pollution Bulletin 150(2020).