Clonal integration in Phagmites australis mitigates effects of oil pollution on greenhouse gas emissions in a coastal wetland
Yuan, Qing-Ye1,2; Alpert, Peter3; An, Jing4,5; Gao, Jun-Qin4; Han, Guang-Xuan6; Yu, Fei-Hai1
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
2020-10-15
卷号739页码:10
关键词Carbon dioxide Clonal integration Crude oil contamination Methane Nitrous oxide
DOI10.1016/j.scitotenv.2020.140007
通讯作者Yu, Fei-Hai(feihaiyu@126.com)
英文摘要Clonal integration, i.e., resource sharing within clones, enables clonal plants to maintain biomass production when ramets (asexual individuals) under stress are connected to those not under stress. Oil pollution can strongly reduce biomass production, and connected ramets within clones may experience different levels of oil pollution. Therefore, clonal integration may help plants maintain biomass production despite oil pollution. Because biomass production is often negatively correlated with greenhouse gas emissions, we hypothesized that oil pollution would increase greenhouse gas emissions and that clonal integration would reduce such an effect. We tested these hypotheses in a coastal wetland dominated by the rhizomatous grass Phragmites austraits near a major site of oil production in the Yellow River Delta in China. We applied 0, 5, or 10 mm crude oil per year for two years in plots within stands of P. austrafis and tested effects of severing rhizomes connecting ramets inside and outside a plot (i.e. preventing clonal integration) on biomass production, soil chemistry and greenhouse gas emissions. When severed, ramets inside plots with no added oil produced about 220 g aboveground biomass m(-2) over the second growing season, and plots absorbed about 500 g total CO2 equivalents m(-2). Adding 10 mm oil per year reduced aboveground biomass by about 30%, and caused plots to emit about 800 g CO2 equivalents m(-2). Leaving ramets connected to those outside plots eliminated the negative effects of oil pollution on biomass production, and caused plots given 10 mm oil per year to emit about 50% fewer total CO2 equivalents. We conclude that oil pollution can increase greenhouse gas emissions and clonal integration can reduce the effect of oil pollution on biomass production and greenhouse gas emissions. Our study provides the first experimental evidence that clonal integration in plants can reduce greenhouse gas emissions. (C) 2020 Elsevier B.V. All rights reserved.
资助机构National Natural Science Foundation of China ; Ten-Thousand-Talent Program of Zhejiang Province ; Joint Fund of Zhejiang Provincial Natural Science Foundation
收录类别SCI
语种英语
关键词[WOS]YELLOW-RIVER DELTA ; REED PHRAGMITES-AUSTRALIS ; PHYSIOLOGICAL INTEGRATION ; ANAEROBIC BIODEGRADATION ; SALINITY STRESS ; CARBON-DIOXIDE ; SALT MARSHES ; SOIL-WATER ; CRUDE-OIL ; PLANT
研究领域[WOS]Environmental Sciences & Ecology
WOS记录号WOS:000561793600018
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/28531
专题中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
中国科学院海岸带环境过程与生态修复重点实验室
通讯作者Yu, Fei-Hai
作者单位1.Taizhou Univ, Inst Wetland Ecol & Clone Ecol, Zhejiang Prov Key Lab Plant Evolutionary Ecol & C, Taizhou 318000, Peoples R China
2.Beijing Vocat Coll Agr, Int Educ Coll, Beijing 102442, Peoples R China
3.Univ Massachusetts, Biol Dept, Amherst, MA 01003 USA
4.Beijing Forestry Univ, Sch Ecol & Nat Conservat, Beijing 100083, Peoples R China
5.Beijing Songshan Natl Nat Reserve Adm, Beijing 102115, Peoples R China
6.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China
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Yuan, Qing-Ye,Alpert, Peter,An, Jing,et al. Clonal integration in Phagmites australis mitigates effects of oil pollution on greenhouse gas emissions in a coastal wetland[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,739:10.
APA Yuan, Qing-Ye,Alpert, Peter,An, Jing,Gao, Jun-Qin,Han, Guang-Xuan,&Yu, Fei-Hai.(2020).Clonal integration in Phagmites australis mitigates effects of oil pollution on greenhouse gas emissions in a coastal wetland.SCIENCE OF THE TOTAL ENVIRONMENT,739,10.
MLA Yuan, Qing-Ye,et al."Clonal integration in Phagmites australis mitigates effects of oil pollution on greenhouse gas emissions in a coastal wetland".SCIENCE OF THE TOTAL ENVIRONMENT 739(2020):10.
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