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DOI | 10.1007/s10533-020-00714-2 |
Determining ecosystem functioning in Brazilian biomes through foliar carbon and nitrogen concentrations and stable isotope ratios | |
Martinelli L.A.; Nardoto G.B.; Soltangheisi A.; Reis G.R.G.; Abdalla-Filho A.L.; Camargo P.B.; Domingues T.F.; Faria D.; Figueira A.M.; Gomes T.F.; Lins S.R.M.; Mardegan S.F.; Mariano E.; Miatto R.C.; Moraes R.; Moreira M.Z.; Oliveira R.S.; Ometto J.P.H.B.; Santos F.L.S.; Sena-Souza J.; Silva D.M.L.; Silva J.C.S.S.; Vieira A.S. | |
发表日期 | 2020 |
ISSN | 0168-2563 |
英文摘要 | By analyzing 6,480 tree leaf samples from 57 sites within Brazilian biomes, we considered whether vegetation types in terrestrial ecosystems reflect biogeochemical diversity and whether they fit into a leaf economics spectrum (LES). To achieve this, we investigated the relations among leaf carbon (C) and nitrogen (N) concentrations, their isotope natural abundance and C:N ratio. In addition, we tested their correlations with mean annual temperature (MAT) and precipitation (MAP), as climatic factors. We found consistent differences in the C and N concentrations and their isotopic composition among the vegetation types. MAP is the main climatic driver of changes in N, C:N ratio, δ15N, and δ13C, correlating negatively with N and positively with C:N ratio. These relations show that these biomes follow an LES. The Caatinga had the highest δ15N values, suggesting that N residence time in soil is longer due to low leaching and plant uptake. We observed that MAP is not the only factor influencing δ13C values in different biomes; instead canopy effect probably explains the highest values observed in the Cerrado. Our results reinforce earlier findings that life diversity in the tropics reflects biogeochemistry diversity and leaf δ15N opens the possibility for investigating plant trade-offs dictated by the LES. Finally, we expect our findings to contribute to a better understanding of the tropics in global climate models. © 2020, Springer Nature Switzerland AG. |
英文关键词 | Biogeochemical diversity; Climate models; Foliar nutrients; Leaf economics spectrum; Tropical forests |
语种 | 英语 |
来源期刊 | Biogeochemistry |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/153168 |
作者单位 | Laboratory of Isotope Ecology, Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, SP, Brazil; Ecology Department, Institute of Biological Sciences, University of Brasília, Brasília, DF, Brazil; Forest Ecosystems and Society, Oregon State University, Corvallis, OR, United States; Department of Biology, Faculty of Philosophy, Sciences and Letters at Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil; Applied Ecology and Conservation Laboratory, State University of Santa Cruz, Ilhéus, BA, Brazil; Institute of Educational Sciences, Federal University of Western Pará, Santarém, PA, Brazil; Botany Department, Federal University of Pernambuco, Recife, PE, Brazil; Plant Systematics and Ecology Laboratory, Institute of Biological Sciences, Federal University of Pará, Belém, PA, Brazil; Institute of Biology, State University of Campinas, Campinas, SP, Brazil; Earth System Science Centre, National Institute for Space Research, São José dos Campos, SP, Brazil; Geoscience D... |
推荐引用方式 GB/T 7714 | Martinelli L.A.,Nardoto G.B.,Soltangheisi A.,et al. Determining ecosystem functioning in Brazilian biomes through foliar carbon and nitrogen concentrations and stable isotope ratios[J],2020. |
APA | Martinelli L.A..,Nardoto G.B..,Soltangheisi A..,Reis G.R.G..,Abdalla-Filho A.L..,...&Vieira A.S..(2020).Determining ecosystem functioning in Brazilian biomes through foliar carbon and nitrogen concentrations and stable isotope ratios.Biogeochemistry. |
MLA | Martinelli L.A.,et al."Determining ecosystem functioning in Brazilian biomes through foliar carbon and nitrogen concentrations and stable isotope ratios".Biogeochemistry (2020). |
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