Global patterns in leaf stoichiometry across coastal wetlands
Hu, Yu-Kun1; Liu, Xu-Yan2; He, Nian-Peng2; Pan, Xu1; Long, Song-Yuan1; Li, Wei1; Zhang, Man-Yin1; Cui, Li-Juan1
Corresponding AuthorZhang, Man-Yin(cneco@126.com) ; Cui, Li-Juan(cneco@126.com)
AbstractAim Coastal wetlands provide crucial ecosystem functions and services, such as coastal protection, nutrient retention and C sequestration. Despite the important roles in global C, N and P cycling, the global variation in leaf stoichiometry across coastal wetlands remains unclear. Location Global. Time period 1980-2018. Major taxa studied Vascular plants. Methods By compiling a global dataset of 698 data records in 205 sites, we carried out systematic analyses of the world-wide trends and their determinants of leaf element contents and ratios of plants across coastal wetlands. Results Leaf N and P contents increased significantly, but C:N, C:P and N:P ratios decreased with increasing latitude in coastal wetlands. The mean annual temperature was the predominant driver of leaf N, P and C:N, whereas soil N:P was a good predictor of leaf C:P and N:P ratios. Furthermore, N increased faster with P in plant leaves of coastal wetlands compared with terrestrial ecosystems. Within coastal wetlands, herb-dominated salt marshes had a significantly higher leaf P content, lower leaf N:P ratio and lower scaling exponent of leaf N to P than tree-dominated mangroves. Main conclusions The similar latitudinal patterns of leaf stoichiometry in coastal wetlands compared with terrestrial ecosystems reflected the similar influences of temperature. However, different slopes of leaf P and N:P ratios and N and P scaling relationships between these two ecosystems suggested that different salinity and tidal inundation levels result in different strategies of N and P use in coastal wetland plants. These differences in leaf stoichiometry between ecosystems and between different types of coastal wetlands might need to be emphasized in future biogeochemical modelling owing to their different roles in global nutrient and carbon cycling.
Keywordbiogeography growth form latitude mangroves nitrogen nutrient cycling phosphorus salt marshes stoichiometry
Indexed BySCI
Funding ProjectNational Key R&D Program of China[2017YFC0506205] ; National Natural Science Foundation of China[31901149]
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology ; Physical Geography
WOS SubjectEcology ; Geography, Physical
WOS IDWOS:000611078700001
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorZhang, Man-Yin; Cui, Li-Juan
Affiliation1.Chinese Acad Forestry, Inst Wetland Res, Beijing Key Lab Wetland Serv & Restorat, Beijing 100091, Peoples R China
2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Hu, Yu-Kun,Liu, Xu-Yan,He, Nian-Peng,et al. Global patterns in leaf stoichiometry across coastal wetlands[J]. GLOBAL ECOLOGY AND BIOGEOGRAPHY,2021:18.
APA Hu, Yu-Kun.,Liu, Xu-Yan.,He, Nian-Peng.,Pan, Xu.,Long, Song-Yuan.,...&Cui, Li-Juan.(2021).Global patterns in leaf stoichiometry across coastal wetlands.GLOBAL ECOLOGY AND BIOGEOGRAPHY,18.
MLA Hu, Yu-Kun,et al."Global patterns in leaf stoichiometry across coastal wetlands".GLOBAL ECOLOGY AND BIOGEOGRAPHY (2021):18.
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