气候变化领域集成服务门户(CCPortal): The influence of plastic pollution and ocean change on detrital decomposition

CCPortal

DOI	10.1016/j.marpolbul.2020.111354
	The influence of plastic pollution and ocean change on detrital decomposition
	Litchfield S.G.; Schulz K.G.; Kelaher B.P.
发表日期	2020
ISSN	0025326X
卷号	158
英文摘要	Plastic pollution and ocean change have mostly been assessed separately, missing potential interactions that either enhance or reduce future impacts on ecosystem processes. Here, we used manipulative experiments with outdoor mesocosms to test hypotheses about the interactive effects of plastic pollution, ocean warming and acidification on macrophyte detrital decomposition. These experiments focused on detritus from kelp, Ecklonia radiata, and eelgrass, Zostera muelleri, and included crossed treatments of (i) no, low and high plastic pollution, (ii) current/future ocean temperatures, and (iii) ambient/future ocean partial pressure of carbon dioxide (pCO2). High levels of plastic pollution significantly reduced the decomposition rate of kelp and eelgrass by approximately 27% and 36% in comparison to controls respectively. Plastic pollution also significantly slowed the nitrogen liberation from seagrass and kelp detritus. Higher seawater temperatures significantly increased the decomposition rate of kelp and eelgrass by 12% and 5% over current conditions, respectively. Higher seawater temperatures were also found to reduce the nitrogen liberation in eelgrass. In contrast, ocean acidification did not significantly influence the rate of macrophyte decomposition or nutrient liberation. Overall, our results show how detrital processes might respond to increasing plastic pollution and ocean temperatures, which has implications for detrital-driven secondary productivity, nutrient dynamics and carbon cycling. © 2020 Elsevier Ltd
英文关键词	Coasts; Decomposition; Estuaries; Kelp; Ocean change; Plastic pollution; Seagrass
语种	英语
scopus关键词	Acidification; Carbon dioxide; Nitrogen; Nutrients; Oceanography; Plants (botany); Pollution; Seawater; Decomposition rate; Interactive effect; Nutrient dynamics; Ocean acidifications; Ocean temperature; Over current conditions; Plastic pollutions; Seawater temperature; Plastics industry; carbon cycle; concentration (composition); decomposition; detrital deposit; environmental impact; future prospect; marine pollution; nutrient dynamics; plastic; pollution exposure; acidification; Article; carbon cycling; carbon dioxide tension; climate warming; controlled study; decomposition; detrital decomposition; Ecklonia; Ecklonia radiata; environmental impact; marine species; ocean environment; plastic pollution; sea pollution; temperature sensitivity; water analysis; water quality; water temperature; Zostera muelleri; ecosystem; pH; sea; Ecklonia radiata; Zostera muelleri; plastic; sea water; Ecosystem; Hydrogen-Ion Concentration; Oceans and Seas; Plastics; Seawater
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/148776
作者单位	National Marine Science Centre and Marine Ecology Research Centre, Southern Cross University, PO Box 4321, Coffs Harbour, NSW 2450, Australia; Centre for Coastal Biogeochemistry and School of Environment, Science and Engineering, Southern Cross University, PO Box 157, East Lismore, NSW 2480, Australia
推荐引用方式 GB/T 7714	Litchfield S.G.,Schulz K.G.,Kelaher B.P.. The influence of plastic pollution and ocean change on detrital decomposition[J],2020,158.
APA	Litchfield S.G.,Schulz K.G.,&Kelaher B.P..(2020).The influence of plastic pollution and ocean change on detrital decomposition.Marine Pollution Bulletin,158.
MLA	Litchfield S.G.,et al."The influence of plastic pollution and ocean change on detrital decomposition".Marine Pollution Bulletin 158(2020).