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Contrasting patterns and controls of soil carbon and nitrogen isotope compositions in coastal wetlands of China

文献类型：期刊论文

作者Xia, Shaopan10; Song, Zhaoliang10; Singh, Bhupinder Pal6; Guo, Laodong5; Bolan, Nanthi4; Wang, Weiqi14; Lin, Guanghui1; Fang, Yin13; Wen, Xuefa12; Wang, Jing12
刊名PLANT AND SOIL
出版日期2023-04-25
卷号N/A
关键词Soil organic matter Stable C and N isotopes Vegetation type Edaphic variables SOM source tracing Environmental changes Coastal wetlands
DOI10.1007/s11104-023-06034-2
文献子类Article ; Early Access
英文摘要AimsNatural stable isotope compositions of carbon (delta C-13) and nitrogen (delta N-15) can reveal biogeochemical mechanisms that control ecosystem carbon (C) and nitrogen (N) processes. However, little is known about the latitudinal patterns and controlling mechanisms for soil delta C-13 and delta N-15 in coastal wetlands based on a large spatial scale.MethodsA total of 76 sites of coastal wetlands were sampled along a 5000 km transect across temperate-subtropical-tropical zones to explore biological and environmental controls on soil stable C and N isotopic compositions.ResultsThe results showed that soil delta C-13 (ranging from -27.5 parts per thousand to -18.3 parts per thousand) and delta N-15 (from 2.66 parts per thousand to 9.97 parts per thousand) varied over a broad geographic scale. The C4-plant (Spartina alterniflora) dominated sites have 2-6 parts per thousand higher delta C-13 values than those of other vegetation types, while mangrove soils have lower delta C-13 values compared to those of marshes; and soils with vegetated C4-plants and mangroves have 1-3 parts per thousand higher delta N-15 values relative to native grass marshes. There were no significant relationships between mean annual temperature (MAT) or precipitation (MAP) and delta C-13, but positive correlations between MAT and delta N-15, as well as MAP and delta N-15.ConclusionsVegetation composition and plant C inputs directly control the spatial variability of delta C-13 patterns. Simultaneously, climate and edaphic variables (e.g., soil water content, pH, and C availability) are the predominant factors influencing delta N-15 patterns. These findings provide new insights into soil organic matter turnover and response to climate and environmental changes and improve the prediction of C stability and burial in coastal wetlands.
WOS关键词N-15 NATURAL-ABUNDANCE ; ORGANIC-CARBON ; CLIMATE-CHANGE ; SPARTINA-ALTERNIFLORA ; MANGROVE ECOSYSTEMS ; ALPINE GRASSLANDS ; STABLE-ISOTOPES ; PLANT INVASION ; DELTA-C-13 ; MATTER
WOS研究方向Agriculture ; Plant Sciences
WOS记录号WOS:000975885900002
源URL[http://ir.igsnrr.ac.cn/handle/311030/200833]  
专题生态系统网络观测与模拟院重点实验室_外文论文
作者单位1.Fujian Normal Univ, Key Lab Humid Subtrop Ecogeog Proc, Minist Educ, Fuzhou, Peoples R China
2.Hartley, Iain P.] Univ Exeter, Coll Life & Environm Sci, Rennes Dr, Exeter EX4 4RJ, England
3.Tianjin Normal Univ, Tianjin Key Lab Water Resources & Environm, Tianjin 300387, Peoples R China
4.Univ Wisconsin Milwaukee, Sch Freshwater Sci, Milwaukee, WI USA
5.Univ New England, Sch Environm & Rural Sci, Armidale, NSW 2351, Australia
6.Tianjin Univ, Inst Surface Earth Syst Sci, Sch Earth Syst Sci, Tianjin Key Lab Earth Crit Zone Sci & Sustainable, Tianjin 300072, Peoples R China
7.Tianjin Normal Univ, Sch Geog & Environm Sci, Tianjin 300387, Peoples R China
8.Foshan Univ, Sch Environm & Chem Engn, Foshan 528000, Guangdong, Peoples R China
9.Zhejiang A&F Univ, Sch Environm & Resource Sci, Hangzhou 311300, Zhejiang, Peoples R China
10.Nanjing Agr Univ, Inst Resource Ecosyst & Environm Agr, Coll Resources & Environm Sci, Nanjing 210095, Peoples R China
推荐引用方式
GB/T 7714		 Xia, Shaopan,Song, Zhaoliang,Singh, Bhupinder Pal,et al. Contrasting patterns and controls of soil carbon and nitrogen isotope compositions in coastal wetlands of China[J]. PLANT AND SOIL,2023,N/A.
APA Xia, Shaopan.,Song, Zhaoliang.,Singh, Bhupinder Pal.,Guo, Laodong.,Bolan, Nanthi.,...&Wang, Hailong.(2023).Contrasting patterns and controls of soil carbon and nitrogen isotope compositions in coastal wetlands of China.PLANT AND SOIL,N/A.
MLA Xia, Shaopan,et al."Contrasting patterns and controls of soil carbon and nitrogen isotope compositions in coastal wetlands of China".PLANT AND SOIL N/A(2023).

入库方式： OAI收割

来源：地理科学与资源研究所

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