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Plant biomass and soil organic carbon are main factors influencing dry-season ecosystem carbon rates in the coastal zone of the Yellow River Delta

文献类型：期刊论文

作者Li, Yong1; Wu, Haidong1; Wang, Jinzhi1; Cui, Lijuan1; Tian, Dashuan2; Wang, Jinsong2; Zhang, Xiaodong1; Yan, Liang1; Yan, Zhongqing1; Zhang, Kerou1
刊名PLOS ONE
出版日期2019-01-14
卷号14期号:1页码:16
ISSN号1932-6203
DOI10.1371/journal.pone.0210768
通讯作者Kang, Xiaoming(xmkang@ucas.ac.cn) ; Song, Bing(songbing@ldu.edu.cn)
英文摘要Coastal wetlands are considered as a significant sink of global carbon due to their tremendous organic carbon storage. Coastal CO2 and CH4 flux rates play an important role in regulating atmospheric CO2 and CH4 concentrations. However, the relative contributions of vegetation, soil properties, and spatial structure on dry-season ecosystem carbon (C) rates (net ecosystem CO2 exchange, NEE; ecosystem respiration, ER; gross ecosystem productivity, GEP; and CH4) remain unclear at a regional scale. Here, we compared dry-season ecosystem C rates, plant, and soil properties across three vegetation types from 13 locations at a regional scale in the Yellow River Delta (YRD). The results showed that the Phragmites australis stand had the greatest NEE (-1365.4 mu mol m(-2) s(-1)), ER (660.2 mu mol m(-2) s(-1)), GEP (-2025.5 mu mol m(-2) s(-1)) and acted as a CH4 source (0.27 mu mol m(-2) s(-1)), whereas the Suaeda heteroptera and Tamarix chinensis stands uptook CH4 (-0.02 to -0.12 mu mol m(-2) s(-1)). Stepwise multiple regression analysis demonstrated that plant biomass was the main factor explaining all of the investigated carbon rates (GEP, ER, NEE, and CH4); while soil organic carbon was shown to be the most important for explaining the variability in the processes of carbon release to the atmosphere, i.e., ER and CH4. Variation partitioning results showed that vegetation and soil properties played equally important roles in shaping the pattern of C rates in the YRD. These results provide a better understanding of the link between ecosystem C rates and environmental drivers, and provide a framework to predict regional-scale ecosystem C fluxes under future climate change.
WOS关键词GREENHOUSE-GAS EMISSIONS ; METHANE EMISSIONS ; SALT-MARSH ; POLYGONAL TUNDRA ; CH4 EMISSIONS ; RESPIRATION ; WETLANDS ; FLUXES ; VEGETATION ; SALINITY
资助项目National Key Research and Development Program of China[2017YFC0506203] ; National Natural Science Foundation of China[41403073] ; National Natural Science Foundation of China[31770511] ; National Natural Science Foundation of China[41701113] ; National Natural Science Foundation of China[41403102]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000455808000047
出版者PUBLIC LIBRARY SCIENCE
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/50537]  
专题中国科学院地理科学与资源研究所
通讯作者Kang, Xiaoming; Song, Bing
作者单位1.Chinese Acad Forestry, Inst Wetland Res, Beijing Key Lab Wetland Serv & Restorat, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
3.Ludong Univ, Sch Resources & Environm Engn, Yantai, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yong,Wu, Haidong,Wang, Jinzhi,et al. Plant biomass and soil organic carbon are main factors influencing dry-season ecosystem carbon rates in the coastal zone of the Yellow River Delta[J]. PLOS ONE,2019,14(1):16.
APA Li, Yong.,Wu, Haidong.,Wang, Jinzhi.,Cui, Lijuan.,Tian, Dashuan.,...&Song, Bing.(2019).Plant biomass and soil organic carbon are main factors influencing dry-season ecosystem carbon rates in the coastal zone of the Yellow River Delta.PLOS ONE,14(1),16.
MLA Li, Yong,et al."Plant biomass and soil organic carbon are main factors influencing dry-season ecosystem carbon rates in the coastal zone of the Yellow River Delta".PLOS ONE 14.1(2019):16.

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来源：地理科学与资源研究所

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