Changes in plant biomass induced by soil moisture variability drive interannual variation in the net ecosystem CO2 exchange over a reclaimed coastal wetland

doi:10.1016/j.agrformet.2018.09.013

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	Changes in plant biomass induced by soil moisture variability drive interannual variation in the net ecosystem CO2 exchange over a reclaimed coastal wetland
	Chu, Xiaojing ; Han, Guangxuan ; Xing, Qinghui ; Xia, Jianyang ; Sun, Baoyu ; Li, Xinge ; Yu, Junbao ; Li, Dejun ; Song, Weimin
刊名	AGRICULTURAL AND FOREST METEOROLOGY
	2019-01-15
卷号	264 页码:138-148
关键词	Precipitation Plant biomass Net ecosystem CO2 exchange Salt stress Waterlogged stress Reclaimed coastal wetland
ISSN号	0168-1923
DOI	10.1016/j.agrformet.2018.09.013
产权排序	[Chu, Xiaojing ; Han, Guangxuan ; Xing, Qinghui ; Sun, Baoyu ; Yu, Junbao ; Song, Weimin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China ; [Chu, Xiaojing ; Xing, Qinghui] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; [Xia, Jianyang ; Sun, Baoyu] East China Normal Univ, Sch Ecol & Environm Sci, Shanghai 200241, Peoples R China ; [Li, Xinge] Henan Univ, Coll Environm & Planning, Kaifeng 475004, Henan, Peoples R China ; [Yu, Junbao] Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China ; [Li, Dejun] Chinese Acad Sci, Inst Subtrop Agr, Changsha 410215, Hunan, Peoples R China
文献子类	Article
英文摘要	Changes in the timing and magnitude of precipitation is a threat to agricultural productivity and farmland carbon stocks. However, the relationship between inter-annual variations in precipitation and net ecosystem CO2 exchange (NEE) remains to be clarified, particularly when combined with water-salt transport in reclaimed coastal wetland. Here, based on the eddy-covariance technique, we investigated the interannual variation in carbon dioxide exchange and its control mechanism over a reclaimed coastal wetland of the Yellow River Delta from 2010 to 2014. The coastal wetland functioned as a strong sink for atmospheric CO2, with the annual NEE of -229, -175, -142, -92 and -80 g C m(-2) in the 5 years from 2010 to 2014, respectively. Surprisingly, we find that large annual variation in net ecosystem exchange (NEE) can be predicted accurately using plant biomass. Plant biomass was driven by soil water content (SWC), with about 48%-80% seasonal variation of biomass attributed to SWC. During the early growing stage, high SWC accompanied with low salinity promoted plant biomass and NEE. While high SWC accompanied with increased waterlogged stress inhibited plant biomass and NEE during the middle growing stage. The same results were also observed in a field manipulation experiment over a nearby natural coastal wetland. Our study indicated that extreme climate accompanied with extreme drought and flooding may decrease carbon sequestration capacity of the reclaimed coastal wetland due to the increase in salinity.
WOS关键词	YELLOW-RIVER DELTA ; CARBON-DIOXIDE EXCHANGE ; PHRAGMITES-AUSTRALIS ; LOESS PLATEAU ; RESPIRATION ; WATER ; PRECIPITATION ; PHOTOSYNTHESIS ; TEMPERATURE ; FLUXES
WOS研究方向	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000452931700012
资助机构	National Nature Science Foundation of China [41671089] ; Science and Technology Service Network Initiative [KFJ-STS-ZDTP-023] ; Key deployment project of Chinese Academy of Sciences [KFZD-SW-112]
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/24624]
专题	烟台海岸带研究所_近岸生态与环境实验室烟台海岸带研究所_滨海湿地实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.East China Normal Univ, Sch Ecol & Environm Sci, Shanghai 200241, Peoples R China; 2.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China; 3.Chinese Acad Sci, Inst Subtrop Agr, Changsha 410215, Hunan, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China; 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 6.Henan Univ, Coll Environm & Planning, Kaifeng 475004, Henan, Peoples R China;
推荐引用方式 GB/T 7714	Chu, Xiaojing,Han, Guangxuan,Xing, Qinghui,et al. Changes in plant biomass induced by soil moisture variability drive interannual variation in the net ecosystem CO2 exchange over a reclaimed coastal wetland[J]. AGRICULTURAL AND FOREST METEOROLOGY,2019,264:138-148.
APA	Chu, Xiaojing.,Han, Guangxuan.,Xing, Qinghui.,Xia, Jianyang.,Sun, Baoyu.,...&Song, Weimin.(2019).Changes in plant biomass induced by soil moisture variability drive interannual variation in the net ecosystem CO2 exchange over a reclaimed coastal wetland.AGRICULTURAL AND FOREST METEOROLOGY,264,138-148.
MLA	Chu, Xiaojing,et al."Changes in plant biomass induced by soil moisture variability drive interannual variation in the net ecosystem CO2 exchange over a reclaimed coastal wetland".AGRICULTURAL AND FOREST METEOROLOGY 264(2019):138-148.