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Temperature sensitivity and decomposition rate of 101 leaf litter types from Mediterranean ecosystems by Giuliano Bonanomi; Riccardo Motti; Anna De Marco; Mohamed Idbella is a Environmental Science article available to read on EtoBox.

What is Temperature sensitivity and decomposition rate of 101 leaf litter types from Mediterranean ecosystems about?

Litter decomposition is a fundamental process, and the number of published studies has steadily increased in recent decades. However, few experiments have systematically compared a large number of litter types and evaluated their temperature sensitivity. We conducted a two-year experiment on the decomposition of litter bags containing 101 leaf litter sampled in Mediterranean ecosystems and incubated under laboratory conditions at 4 °C, 14 °C, and 24 °C. Litter was chemically characterized and analysed for carbon (C), nitrogen (N), cellulose and lignin concentration, C/N, and lignin/N ratios, which serve as predictors of decomposition rate. The sensitivity of litter decay rate to temperature was evaluated using Q 10 . Leaf litter chemistry varied widely in nitrogen content (range 0.52–6.80 %), lignin content (range 1.53–49.31 %), C/N ratio (range 5.21–77.78), and lignin/N ratio (range 0.34–34.90). Litter decomposition rate was negatively related to initial lignin concentration, lignin/N ratio, and C/N ratio, but only in the early stage. In the late stages of decomposition, litter decay rate was negatively correlated with initial N concentration but positively correlated with C/N and

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Author

Giuliano Bonanomi; Riccardo Motti; Anna De Marco; Mohamed Idbella

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)