Effects of Nitrogen Deposition on Foliar Litter Decomposition and C, N, Ca, and P Dynamics in a Regenerating Forest

Munasinghe, Prinith; Herath, H. M. L. K.

doi:10.4038/jepsl.v3i1.7312

Cited by 1 publication

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“…In this study, the amount of carbon in the litter decreased gradually, which agreed with Shen's results (Shen et al 2019). Munasinghe and Herath(2014) suggested the release of C was consistent with the litter decomposition rate change. The effect of N deposition on C levels becomes very complex, and determined not only by the species and activity of microorganisms in the ecosystem but also by climate, plant species and environmental conditions (Wen et al 2017).…”

Section: Effects Of Nitrogen Deposition On Litter Decompositionmentioning

confidence: 70%

Effects of Simulated Nitrogen Deposition on Leaf-Litter Decomposition and Nutrient Release of A Cold Temperate Coniferous Forest in Jiaozi Snow Mountain National Nature Reserve, Southwest China

Ji-you

Ouyang

et al. 2021

Preprint

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Purpose Litter decomposition is a key process of nutrient cycling in terrestrial ecosystems, an important part of the global carbon budget, and deeply affected by global atmospheric nitrogen deposition. However, the effects of different forms of N addition on litter decomposition and nutrient release are unclear in a cold temperate coniferous forest in a subtropical Chinese plateau. Methods Three N sources (NH4)2SO4, NaNO3, and NH4NO3 were used in the gradient N deposition method. Each N source was divided into four treatments, from low to high, they were CK (control 0 kg N·hm− 2·a− 1), low N (low-N 5 kg N·hm− 2·a− 1), medium n (medium-N 15 kg N·hm− 2·a− 1), high N (high-30 kg N·hm− 2·a− 1), and each treatment repeated three times. Results After two years, the litter decomposition rates of low and medium ammonium nitrate treatments were the fastest as compared to the control, while high and low ammonium nitrate treatments were the slowest. Under the same nitrogen deposition conditions, the litter decomposition rates of low nitrogen treatments were higher than high nitrogen treatments. The order of litter decomposition rates was ammonium nitrate > ammonium sulfate > sodium nitrate. Nitrogen deposition decreased the amount of C in litter leaves but increased N and P levels slightly. Phosphorus changes over time were more complex than C and N over time. Conclusions These results showed that high nitrogen deposition in the future could increase litter decomposition rates and delay the nutrient release, which may be beneficial to improve soil carbon sequestration.

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Section: Effects Of Nitrogen Deposition On Litter Decompositionmentioning

confidence: 70%

Effects of Simulated Nitrogen Deposition on Leaf-Litter Decomposition and Nutrient Release of A Cold Temperate Coniferous Forest in Jiaozi Snow Mountain National Nature Reserve, Southwest China

Ji-you

Ouyang

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

Effects of Nitrogen Deposition on Foliar Litter Decomposition and C, N, Ca, and P Dynamics in a Regenerating Forest

Abstract: Increases in atmospheric N deposition over the past decades have raised concerns over nitrogen (N) retention and carbon (C) and nutrient cycling in forest Journal of Environmental Professionals Sri Lanka: 2014 -Vol. 3 -No

Cited by 1 publication

References 48 publications

Effects of Simulated Nitrogen Deposition on Leaf-Litter Decomposition and Nutrient Release of A Cold Temperate Coniferous Forest in Jiaozi Snow Mountain National Nature Reserve, Southwest China

Effects of Simulated Nitrogen Deposition on Leaf-Litter Decomposition and Nutrient Release of A Cold Temperate Coniferous Forest in Jiaozi Snow Mountain National Nature Reserve, Southwest China

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