Decomposition and nitrogen dynamics of 15Nâ•‚labeled leaf, root,and twig litter in temperate coniferous forests

نویسندگان

  • Tiff L. van Huysen
  • Mark E. Harmon
  • Steven S. Perakis
  • Hua Chen
چکیده

Decomposition and nitrogen dynamics of 15N‑labeled leaf, root, and twig litter in temperate coniferous forests" (2013). USDA Forest Service / UNL Faculty Publications. Paper 253. patterns were species-specific. For multiple litter × species combinations, the difference between gross and net n mineralization was significant, and gross mineralization was 7–20 % greater than net mineralization. the mineral-ization results suggest that initial litter chemistry may be an important driver of litter n dynamics. Our study demonstrates that greater amounts of n are cycling through these systems than may be quantified by only measuring net mineralization and challenges current leaf-based bio-geochemical theory regarding patterns of n immobilization and mineralization.

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تاریخ انتشار 2013