Composition of sedimentary organic matter in Thrissur Kole wetland, southwest India

Vidya, P. V.; Rajathy, S.; Kumar, C. S. Ratheesh

doi:10.1007/s12665-023-10854-x

Cited by 7 publications

(2 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, the changes in sediment TOC contents after S. alterniflora invasion should be further followed up to recognize its carbon storage potential (He et al, 2024). Sediment labile carbon fractions (e.g., MBC, DOC, and EOC) are sensitive to changes in environmental conditions and have commonly been used as indicators for assessing sediment carbon turnover (Jin et al, 2017;Vidya et al, 2023). In our study, we also discovered that invasive S. alterniflora generally increased sediment MBC, DOC, and EOC contents, although some differences were statistically insignificant (Figure 2).…”

Section: Effects Of Invasive S Alterniflora On Organic Carbon Fractionsmentioning

confidence: 99%

Invasive Spartina alterniflora alters sediment organic carbon mineralization dynamics in a coastal wetland of Southeastern China

Jiang,

Yang,

Huang

et al. 2024

Front. Mar. Sci.

View full text Add to dashboard Cite

Invasive Spartina alterniflora has significant impacts on sediment carbon pool and turnover in the tidal wetlands of estuaries and coasts. Yet, how this exotic S. alterniflora affects sediment organic carbon mineralization dynamics remains poorly understood. In this study, sediment geochemical properties, organic carbon fractions, and mineralization dynamics were examined in a native Cyperus malaccensis habitat and three invasive S. alterniflora habitats (6-, 10-, and 14-year-old) in summer and winter. We found that invasive S. alterniflora generally increased sediment total organic carbon and their labile fraction contents. The organic carbon mineralization rates and cumulative carbon mineralization amounts were significantly influenced by invasive S. alterniflora, and their values increased with this exotic plant invasion chronosequences. The mineralization rates and cumulative mineralization amounts were also characterized by higher values in surface sediment (0 – 10 cm depth) compared to subsurface sediment (10 – 20 cm depth) and by seasonal variations with higher values in summer than in winter. The sediment organic carbon labile fractions, rather than total organic carbon, were the most important factor affecting carbon mineralization dynamics. The cumulative carbon mineralization amounts exhibited an excellent fit to the first-order kinetic equation (R2 ≥ 0.93). The changes in modeled kinetic parameters (potential carbon mineralization amounts (C0) and carbon mineralization rate constant (k)) among these four habitats were similar to carbon mineralization rates, implying invasive S. alterniflora promoted the availabilities of organic compounds for microbial respiration metabolism. Overall, our findings highlighted the importance of S. alterniflora invasion in accelerating organic carbon decomposition and carbon dioxide release potential, although it also increases carbon accumulation.

show abstract

Section: Effects Of Invasive S Alterniflora On Organic Carbon Fractionsmentioning

confidence: 99%

Invasive Spartina alterniflora alters sediment organic carbon mineralization dynamics in a coastal wetland of Southeastern China

Jiang,

Yang,

Huang

et al. 2024

Front. Mar. Sci.

View full text Add to dashboard Cite

show abstract

“…For regions with wider slopes, the gravitational potential energy in the descending direction of the slope does not change greatly. As a result, the erosion effect of surface runoff is not significant, and the relatively slow water flow rate provides a greater opportunity for organic deposition [38,39], again creating possible conditions for vegetation growth.…”

Section: Geometric Description Of the Gully By Lsw And Corresponding ...mentioning

confidence: 99%

Application of Compound Terrain Factor LSW in Vegetation Cover Evaluation

Zhou,

Ma,

Xie

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

Aiming at the limited degree of revealing vegetation growth pattern by simple topographic factors, it is essential to find an index that can explain the vegetation cover mechanism to a greater extent. By introducing a certainty factor into vegetation cover evaluation, LSW, LS, topographic wetness index, and aspect were also chosen to carry out control group experiments. The grid digital elevation model of 10 disaster-stricken counties (cities) in Sichuan Province was used as the basis to obtain LSW, while vegetation susceptibility levels were categorized using the natural breaks classification. The results of the multi-factor analysis demonstrated that the certainty factor corresponding to LSW climbed linearly from negative to positive values as the susceptibility level rose, indicating that it was highly correlated with vegetation cover and had an obvious advantage in revealing the vegetation growth potential. Statistically, the vegetation occurrence rate increased regularly with the improvement of the susceptibility level, in which the high and very high susceptibility zones corresponded to 83.66% and 89.95% of vegetation coverage respectively, suggesting a good consistency between the delineated high susceptibility areas and the actual vegetation cover. The findings proved that LSW has a substantial advantage in evaluating vegetation cover, with an evaluation model accuracy of 72.9%. It has been established that LSW will serve as a promising new model for assessing vegetation restoration and planning.

show abstract

Microplastics in the Surface Waters and Sediment in an Agrarian Part of Vembanad-Kol Wetlands, the Largest Ramsar Site—Southwest India

AR,

2024

Water Air Soil Pollut

View full text Add to dashboard Cite

Composition of sedimentary organic matter in Thrissur Kole wetland, southwest India

Cited by 7 publications

References 63 publications

Invasive Spartina alterniflora alters sediment organic carbon mineralization dynamics in a coastal wetland of Southeastern China

Invasive Spartina alterniflora alters sediment organic carbon mineralization dynamics in a coastal wetland of Southeastern China

Application of Compound Terrain Factor LSW in Vegetation Cover Evaluation

Microplastics in the Surface Waters and Sediment in an Agrarian Part of Vembanad-Kol Wetlands, the Largest Ramsar Site—Southwest India

Contact Info

Product

Resources

About