Effects of litter species and genetic diversity on plant litter decomposition in coastal wetland

Yin, Meiqi; Liu, Lele; Wu, Yiming; Sheng, Weifan; Ma, Xiangyan; Du, Ning; Zhu, Pengcheng; Wang, Cui; Cui, Zhaojie; Brix, Hans; Eller, Franziska; Guo, Weihua

doi:10.1016/j.ecolind.2022.109439

Cited by 14 publications

(6 citation statements)

References 61 publications

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“…These low values of decomposition in the studied areas in relation to other studies, may be related to the higher lignin content present in the leaves (Yin et al, 2022). Although precipitation has a greater weight in the decomposition of the leaf fraction of the litter (Table 2), in general, it may be contributing to the loss of available nitrogen by leaching, thus decreasing the C:N ratio and thus the decomposition rate .…”

Section: Decomposition Of Leaf Littermentioning

confidence: 53%

“…The litter performs several ecosystem functions, among which the cycling of nutrients is a key factor for the maintenance of forests and crops in tropical regions. Litter decomposition processes are influenced by several factors, among them are microbial diversity and population, degree of lignification of the leaves present (Yin et al, 2022), soil temperature and moisture, enzymatic activities (Liu et al, 2022), nutritional composition of the litter (C:N ratio) (Dawoe et al, 2010), and the interactions among these factors (Prieto et al, 2019). Thus, the higher rate of decomposition observed in the forest and B. orellana cultivation environments can be attributed to the greater vegetation cover that these areas have, which maintains greater moisture (Table 2) in the environment (Cotrufo et al, 2010) and with this greater population and microbial diversity especially in the forest environment.…”

Section: Decomposition Of Leaf Littermentioning

confidence: 99%

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Accumulation and decomposition of cultural residues of Theobroma grandiflorum, Paullinia cupana, Bixa orellana and forest in the southern region of Amazonas

et al. 2023

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The litter deposited on the soil surface at various stages of decomposition is important for primary productivity that impacts the microbial communities and soil carbon storage. The objective of this study was to evaluate the accumulation and decomposition of cultural residues of Theobroma grandiflorum (Willd. ex. Spreng) Schum, Paullinia cupana (Mart.) Ducke, Bixa orellana L., and forest in the Amazon region. The study was carried out in the São Francisco settlement, Canutama in the south of Amazonas, in a randomized block experimental design, and the treatments consisted of four areas with different crops: 1 - P. cupana; 2 - T. grandiflorum; 3 - B. orellana; 4 - Native woodland area (forest), in time subdivided plots: 7, 15, 30, 60, 90, 120, 150, 180, 210, 240, 270, 300, and 330 days after the distribution of the bags in the field, all with four repetitions. To evaluate the contribution and fractions of litter, conical collectors were used in each area, and collections were performed monthly in the period from March 2020 to February 2021. The estimate of the decomposition rate of the litter was done by quantifying the loss of mass, using litter bags, which allow for a direct analysis of the rate of decay over time. The forest and P. cupana environments presented the highest litter production, and greater deposition when compared to environments cultivated with T. grandiflorum and B. orellana. The forest and B. orellana areas showed the highest speed of decomposition, while the opposite situation occurred under T. grandiflorum and P. cupana cultivation.

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Section: Decomposition Of Leaf Littermentioning

confidence: 53%

Section: Decomposition Of Leaf Littermentioning

confidence: 99%

Accumulation and decomposition of cultural residues of Theobroma grandiflorum, Paullinia cupana, Bixa orellana and forest in the southern region of Amazonas

et al. 2023

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“…In terms of testing the difference in mass loss across large spatial scales, P. australis might be a good candidate species, because P. australis as a cosmopolitan grass is dominant in many wetland ecosystems and widely spread both globally and locally (Brix et al, 2014;Hu et al, 2017;Yin et al, 2022;Liu S. et al, 2023). Moreover, P. australis can expand or invade into new communities, with various consequences to ecosystem functioning (Meyerson et al, 2010;Cui et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Functional composition of initial soil fungi explains the difference in mass loss of Phragmites australis litter in different habitat conditions across multiple coastal wetlands

Ping,

Pan,

Cui

et al. 2024

Front. Environ. Sci.

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The differences in mass loss of leaf litter are primarily thought to be driven by microbial activity, especially by fungi. However, the existence of such differences across large spatial scales has not been well explored in field studies and the underlying mechanisms of difference are still unclear, especially for the role of different fungal guilds in driving different mass losses. We conducted a 1-year decomposition study within each of four coastal wetlands in China to test the difference in mass loss across a large spatial scale (ranging from 26° N to 41° N in latitude). In each wetland, six sites including three composed of P. australis and three composed of another dominant plant species typically in coastal ecosystems were selected. We used P. australis leaf litter as the standard decomposition material, placing it into litter bags with mesh sizes 1 mm and 4 mm, respectively. Final litter mass loss was examined approximately after 3, 9 and 12 months. The different mass loss was quantified using additional mass loss at P. australis sites compared to that at another species sites. We found that the mass loss of leaf litter of P. australis showed a clear difference across multiple coastal wetlands only at later stages of decomposition, which was independent of mesofauna (mesh size) contribution to decomposition. Furthermore, the observed difference in mass loss was primarily attributed to the dissimilarities in initial soil fungal community, particularly the symbiotrophic fungi, rather than the soil bacterial community. Our results provide empirical evidence of a large-scale difference in mass loss in litter decomposition and have linked the observed difference to different soil fungal guilds. These results indicate that symbiotrophic fungi might play a direct or indirect role in driving difference in mass loss, which contributes to a better understanding and invites in-depth further investigation on the underlying microbe-driven mechanisms of the difference.

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Section: Introductionmentioning

confidence: 99%

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Effects of litter species and genetic diversity on plant litter decomposition in coastal wetland

Cited by 14 publications

References 61 publications

Accumulation and decomposition of cultural residues of Theobroma grandiflorum, Paullinia cupana, Bixa orellana and forest in the southern region of Amazonas

Accumulation and decomposition of cultural residues of Theobroma grandiflorum, Paullinia cupana, Bixa orellana and forest in the southern region of Amazonas

Functional composition of initial soil fungi explains the difference in mass loss of Phragmites australis litter in different habitat conditions across multiple coastal wetlands

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