Macroalgae bloom decay decreases the sediment organic carbon sequestration potential in tropical seagrass meadows of the South China Sea

doi:10.1016/j.marpolbul.2018.12.009

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院海洋生物资源可持续利用重点实验室

	Macroalgae bloom decay decreases the sediment organic carbon sequestration potential in tropical seagrass meadows of the South China Sea
	Wu, Yunchao ; Jiang, Zhijian ; Liu, Songlin ; Huang, Xiaoping 3; Cui, Lijun 3; Zhao, Chunyu 3; Chen, Qiming 3; Deng, Yiqin 2
刊名	MARINE POLLUTION BULLETIN
	2019
卷号	138 页码:598
关键词	Seagrass meadows Macroalgae boom Sediment organic carbon Composition Enzyme activities
ISSN号	0025-326X
DOI	10.1016/j.marpolbul.2018.12.009
英文摘要	Seagrass meadows are experiencing worldwide declines mainly because of nutrient enrichment, which always result in macroalgae bloom and consequently periodic collapse and decomposition. However, effects of macroalgae decay on the sediment organic carbon (SOC) sequestration capacity remain unknown. Depending on the macroalgae biomass in eutrophic seagrass meadows of South China Sea, we carried out a laboratory chamber experiment to investigate the sediment labile organic carbon (OC) compositions and the influencing SOC transformation enzyme activity variations of seagrass meadows in response to common macroalgae bloom species (Cladophora spp.) decomposition. Although the dehydrogenase and beta-glucosidase activities were not affected by macroalgae decomposition, the macroalgae decomposition significantly elevated the salt-extractable carbon (SEC) content, SEC/SOC, levels of invertase and polyphenol oxidase activities, and the CO2 release. Overall, this study indicates that macroalgae decomposition stimulates the SOC transformation, and therefore, it is not benefit for SOC sequestration within seagrass meadows of the South China Sea.
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/17926]
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
作者单位	1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab South China Sea Fishery Resources Exploit, Guangzhou 510300, Guangdong, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Wu, Yunchao,Jiang, Zhijian,Liu, Songlin,et al. Macroalgae bloom decay decreases the sediment organic carbon sequestration potential in tropical seagrass meadows of the South China Sea[J]. MARINE POLLUTION BULLETIN,2019,138:598, 603.
APA	Wu, Yunchao.,Jiang, Zhijian.,Liu, Songlin.,Huang, Xiaoping.,Cui, Lijun.,...&Deng, Yiqin.(2019).Macroalgae bloom decay decreases the sediment organic carbon sequestration potential in tropical seagrass meadows of the South China Sea.MARINE POLLUTION BULLETIN,138,598.
MLA	Wu, Yunchao,et al."Macroalgae bloom decay decreases the sediment organic carbon sequestration potential in tropical seagrass meadows of the South China Sea".MARINE POLLUTION BULLETIN 138(2019):598.