Konsentrasi Dan Distribusi Karbon Organik   Total (TOC), Total Nitrogen (TN) Dan Rasio C/N Pada Sedimen Di Perairan Kawasan Pelabuhan Pangkal Balam, Bangka

Sadewi, Lara Sukma; Nugraha, Mohammad Agung; Akhrianti, Irma

doi:10.33019/jour.trop.mar.sci.v5i2.2552

Cited by 2 publications

(3 citation statements)

References 1 publication

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“…The soil total phosphorous (TP) content was determined using the molybdenum antimony colorimetric method [ 31 ]. Total nitrogen (TN) contents were determined using the Kjeldahl method [ 32 ]. Soil pH was measured using a pH meter (PT-10, Sartorius, Göttingen, Germany) with the ratio of fresh soil: water = 1:2.5 ( w / v ).…”

Section: Methodsmentioning

confidence: 99%

The Distribution and Influencing Factors of Hypolithic Microbial Communities in the Hexi Corridor

Zhao

Liu

et al. 2023

Microorganisms

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The Hexi Corridor is an arid region in northwestern China, where hypoliths are widely distributed, resulting from large amounts of translucent stone pavements. In this region, the water and heat distributions are uneven, with a descent gradient from east to west, which can affect the area’s biological composition. The impact of environmental heterogeneity on the distribution of hypolithic microbial communities in this area is poorly understood, and this is an ideal location to investigate the factors that may influence the composition and structure of hypolithic microbial communities. An investigation of different sites with differences in precipitation between east and west revealed that the colonization rate decreased from 91.8% to 17.5% in the hypolithic community. Environmental heterogeneity influenced both the structure and function of the hypolithic community, especially total nitrogen (TN) and soil organic carbon (SOC). However, the effect on taxonomic composition was greater than that on ecological function. The dominant bacterial phyla in all sample sites were Cyanobacteria, Actinobacteria, Proteobacteria, and Deinococcus-Thermus, but the abundances varied significantly between the sampling sites. The eastern site had the highest relative abundance of Proteobacteria (18.43%) and Bacteroidetes (6.32%), while the western site had a higher relative abundance in the phyla Cyanobacteria (62%) and Firmicutes (1.45%); the middle site had a higher relative abundance of Chloroflexi (8.02%) and Gemmatimonadetes (1.87%). The dominant phylum in the fungal community is Ascomycota. Pearson correlation analysis showed that the soil’s physicochemical properties were also associated with changes in community diversity at the sample sites. These results have important implications for better understanding the community assembly and ecological adaptations of hypolithic microorganisms.

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Section: Methodsmentioning

confidence: 99%

The Distribution and Influencing Factors of Hypolithic Microbial Communities in the Hexi Corridor

Zhao

Liu

et al. 2023

Microorganisms

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“…In contrast to the study conducted by Ardhani et al (2020), the soil nitrogen content in Mangrove Kabupaten Demak, Central Java, is relatively elevated, ranging from 0.65% to 0.85% throughout both research stations. Nevertheless, the levels of soil nitrogen in Kepulauan Seribu, Jakarta, and Pangkal Balam Harbour, Bangka, are relatively lower, ranging from 0.02% to 0.04% and 0.01% to 0.06% correspondingly (Palufi et al, 2019;Sadewi et al, 2022). The disparity can be elucidated by the origin of nitrogen, where the mangroves in Demak Regency originate from former ponds and are situated near a river mouth.…”

Section: Percentage and Distribution Of Soil Nitrogenmentioning

confidence: 99%

“…The results obtained were comparatively higher, ranging from 16.8 to 20.5. Meanwhile, in the mangrove community of Pangkal Balam Harbour, Bangka, the carbon-to-nitrogen ratio (C/N) in soil was discovered to be exceptionally elevated, reaching a value of 244 (Sadewi et al, 2022). It demonstrates that each mangrove habitat, characterized by distinct geomorphological, hydrological, and vegetation health conditions, can have various C/N values influenced by their respective sources.…”

Section: Soil C/n Ratiomentioning

confidence: 99%

Comparison of Soil Carbon-Nitrogen Ratio at Two Different Mangrove Ecosystem in Bali, Indonesia

Ernawati,

Astarini,

Suarna

et al. 2024

Ecol. Eng. Environ. Technol.

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The mangrove ecosystem significantly contributes to nutrient and carbon exchange. It is primarily stored in the soil as organic matter, significantly benefiting the surrounding organisms. However, it could be changed depending on its surrounding conditions. This research aimed to determine the percentage of soil carbon-nitrogen and its ratio in two mangrove ecosystems, one with high anthropogenic impact (Tahura Ngurah Rai) and the other on a small island (Lembongan Island). We collect soil samples on 14 plots at each station at 0-30 cm depth and use carbon titration and TN-Kjeldahl methods for soil carbon-nitrogen measurement. The result shows substantial disparities in soil carbon levels between these ecosystems, but the soil nitrogen content was comparable. Two specific plots at Tahura Ngurah Rai (T8 and T11) were found at low soil carbon levels due to the damage to the mangrove forest. The C/N values vary between stations, primarily because of their different sources (Tahura Ngurah Rai: human activities, Lembongan: marine organisms). The C/N value at Tahura Ngurah Rai is higher than the Redfield ratios, while Lembongan Island is on the contrary. However, its levels at both stations are still categorized as common conditions for mangrove ecosystems compared to various sites in Indonesia. Future research will involve measuring radioisotope characteristics to verify the origin of nutrients in these ecosystems. Obtaining measurements of environmental parameters is also necessary to provide a more comprehensive explanation of the results.

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Konsentrasi Dan Distribusi Karbon Organik Total (TOC), Total Nitrogen (TN) Dan Rasio C/N Pada Sedimen Di Perairan Kawasan Pelabuhan Pangkal Balam, Bangka

Cited by 2 publications

References 1 publication

The Distribution and Influencing Factors of Hypolithic Microbial Communities in the Hexi Corridor

The Distribution and Influencing Factors of Hypolithic Microbial Communities in the Hexi Corridor

Comparison of Soil Carbon-Nitrogen Ratio at Two Different Mangrove Ecosystem in Bali, Indonesia

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