Significant but short time assimilation of organic matter from decomposed exotic Spartina alterniflora leaf litter by mangrove polychaetes

Chen, Hui; Feng, Jianxiang; Zhang, Yihui; Wei, Shudong; Chen, Zhongyi; Lin, Guanghui

doi:10.1016/j.ecss.2021.107436

Cited by 8 publications

(1 citation statement)

References 56 publications

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“…During the initial decomposition process, the initial C content showed obvious differences between K. obovata and A. marina, which might have affected the amount of C released at each subsequent time point [37]. In addition, K. obovata has high amounts of condensed tannin, a low N content, and high C/N value; this means that it is not easy to decompose, and promotes the retention of C in the decomposition process of treatment group KO:AM = 2:1 of mixed mangrove litter [38,39]. However, the influencing factors regarding the mixing effect on nutrient dynamics may vary, including the microorganism, environmental temperature, moisture content, and oxygen levels, which are all crucial conditions that affect C dynamics during the litter decomposition process [40][41][42][43].…”

Section: Discussionmentioning

confidence: 98%

Decomposition and Variation in Carbon and Nitrogen of Leaf Litter Mixtures in a Subtropical Mangrove Forest

Wang,

Li,

et al. 2024

Forests

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The decomposition of mangrove litter plays a crucial role in material circulation and energy flow within mangrove forests. Evaluating the decomposition-based variation in biogenic elements in litter is important for improving our understanding about their biogeochemical cycling in ecosystems. The main objective of this study was to examine the interaction effect during the decomposition process of mixed Kandelia obovata and Avicennia marina litter. Variations in C and N were also determined in the decomposing leaf litter mixtures. Our findings revealed that the decomposition rates were faster in summer than in winter, and increased with the proportion of A. marina litter. After 35 days of decomposition in summer, the remaining weights for different proportions of K. obovata (KO) and A. marina (AM) were 22.9% (KO:AM = 1:2), 27.2% (KO:AM = 1:1), and 31.2% (KO:AM = 2:1), respectively. Similarly, after 49 days of decomposition in winter, the remaining weights for the different KO:AM proportions were 27.7%, 35.4%, and 44.0%, respectively. Additionally, the decomposition of mixed K. obovata and A. marina litter had an influence on C content and N release dynamics. These results provide a scientific basis for understanding the decomposition of mixed mangrove litter and its implications for material circulation and energy flow within these ecosystems.

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