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. 2015 Oct 30;5:15783. doi: 10.1038/srep15783

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Composition of chemical functional groups (%) in (a) Pinus resinosa (PIRE) at four sites, (b) Drypetes glauca (DRGL) at four sites, and (c) four litters at H. J. Andrews Forest (AND) obtained by ¹³C CP/TOSS and spectral editing technique. Error bars represent the level of S/N ratio.