Effects of typhoon disturbances on seasonal and interannual patterns of litterfall on coniferous and broadleaf plantations in Xitou, central Taiwan

Cheng, Chiung-Hsiang; Lee, Chia-Yi; Lee, Hong-Ru; Chen, Chiou‐Pin; Menyailo, O. V.

doi:10.1201/9781003252436-5

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“…Meanwhile, our results proved that the reproductive organs in Q. variabilis stands were the major component of the total C and N inputs in September, in which acorns could be an important source of C and N inputs in the months before the heavy litterfall season. The patterns of the branch litter input were irregular in both stands because the inputs of the branch litter are mainly determined by abiotic conditions such as rainfall and wind (Cheng et al 2020). The higher C and N inputs by miscellaneous litter in the P. densiflora than in the Q. variabilis stands could be due to the input from the bark, which was classified as miscellaneous litter in this study.…”

Section: Discussionmentioning

confidence: 99%

Comparisons of carbon and nitrogen dynamics of litterfall components in adjacent Pinus densiflora and Quercus variabilis stands

Choi¹,

Baek²,

Kim³

et al. 2022

J. For. Sci.

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This study aimed to determine the effects of the stand and month on the carbon (C) and nitrogen (N) concentrations and the inputs of the litterfall components in adjacent Pinus densiflora and Quercus variabilis stands. The monthly C concentrations of the litterfall components were significantly higher in the P. densiflora stand than in the Q. variabilis stand, whereas the monthly N concentrations of the leaf and miscellaneous litter were higher in the Q. variabilis stand than in the P. densiflora stand. The coefficient variations of the N concentrations were higher than those of C concentrations of the litterfall components. The monthly C and N inputs of the leaf litter showed a unimodal pattern in the Q. variabilis stand, whereas multimodal patterns in the P. densiflora stand could be seen. The annual total C inputs were not significantly different between the P. densiflora [2 691 kg(C)·ha–1·yr–1] and Q. variabilis [2 439 kg(C)·ha–1·yr–1] stands. However, the annual total N inputs were significantly higher in the Q. variabilis [44.5 kg(N)·ha–1·yr–1] stand than in the P. densiflora [38.6 kg(N)·ha–1·yr–1] stand. These results indicate that the C and N dynamics in the litterfall components were affected by the species and sampling months in adjacent P. densiflora and Q. variabilis stands.

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Section: Discussionmentioning

confidence: 99%