Effects of tree species diversity on leaf litter decomposition process in semi-arid Mediterranean oak forests

sarabi, hamzeh jafari; Pilehvar, Babak; Vajari, Kambiz Abrari; Waez-Mousavi, Seyed Mohammad

doi:10.1007/s10342-021-01403-x

Cited by 2 publications

(1 citation statement)

References 55 publications

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“…Surprisingly, in contrast to our first hypothesis that we did not observe any significant differences in final mass loss and decomposition rate (k) among different litter species types, regardless of the treatment (Table 2, p > 0.05). This finding is consistent with a litter decomposition experiment conducted in a semi-arid Mediterranean oak forest, where individual species did not explain the rate of litter decomposition (Sarabi et al, 2021). This result may be attributed to the fact that most of our research objects are shrubby vegetation.…”

Section: Litter Mass Loss and Decomposition Rate During Photodegradat...supporting

confidence: 90%

The effect of litter decomposition mostly depends on seasonal variation of ultraviolet radiation rather than species in a hyper-arid desert

Wang,

Liu,

Zhang

et al. 2024

Front. Environ. Sci.

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Introduction: Ultraviolet (UV) radiation is believed to play a significant role in accelerating litter decomposition in water-limited ecosystems. Litter traits also influence the decomposition. However, the dominance of litter traits and ultraviolet radiation on litter decomposition in hyper-arid deserts (annual precipitation: potential evaporation < 0.05) with diverse species and seasonal variations remain unclear.Methods: To address this knowledge gap, we examined the decomposition of three dominant litter species (Karelinia caspia, Alhagi sparsifolia, and Populus euphratica) in the southern edge of the Taklimakan Desert, Northwest China.Results: Our results revealed that under UV radiation conditions, K. caspia, A. sparsifolia, and P. euphratica experienced mass losses of 45.4%, 39.8%, and 34.9%, respectively, and 20%, 22.2% and 17.4%, respectively under UV filtering treatment. Specifically, the loss rate of carbon and lignin under UV radiation, was 2.5 and 2.2 times higher than under UV filtering treatment, respectively.Conclusion: UV radiation did not dominate decomposition throughout the year in our study area, and the loss rate of litter traits was significantly higher in summer than in winter under UV radiation. Moreover, this photodegradation is related to the intensity of UV exposure, but not to precipitation or temperature. Surprisingly, species type had no significant effect on litter decomposition. However, when we applied a UV filtering treatment, we observed higher loss rates of nitrogen compared with the ambient treatment, suggesting the involvement of other spectra in the litter decomposition process. Overall, our findings elucidate that UV radiation is a crucial factor that affects litter mass loss. The magnitude of this effect mostly varies with the season rather than the species of litter.

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Section: Litter Mass Loss and Decomposition Rate During Photodegradat...supporting

confidence: 90%

The effect of litter decomposition mostly depends on seasonal variation of ultraviolet radiation rather than species in a hyper-arid desert

Wang,

Liu,

Zhang

et al. 2024

Front. Environ. Sci.

View full text Add to dashboard Cite

show abstract

Non-additive responses of litter decomposition, litter chemical traits, and soil C:N:P stoichiometry to mixing with Eucalyptus in plantation environments

He,

Deng,

Liu

et al. 2024

Plant Soil

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Effects of tree species diversity on leaf litter decomposition process in semi-arid Mediterranean oak forests

Cited by 2 publications

References 55 publications

The effect of litter decomposition mostly depends on seasonal variation of ultraviolet radiation rather than species in a hyper-arid desert

The effect of litter decomposition mostly depends on seasonal variation of ultraviolet radiation rather than species in a hyper-arid desert

Non-additive responses of litter decomposition, litter chemical traits, and soil C:N:P stoichiometry to mixing with Eucalyptus in plantation environments

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