TY - JOUR
T1 - Sediment organic carbon stocks in tropical lakes and its implication for sustainable lake management
AU - Soeprobowati, T. R.
AU - Takarina, N. D.
AU - Komala, P. S.
AU - Subehi, L.
AU - Wojewódka-Przybył, M.
AU - Jumari, J.
AU - Nastuti, R.
N1 - Funding Information:
The study was conducted in Lake Maninjau, funded by Riset Kolaborasi Indonesia, a with the contract number [434-05/UN7.D2/PP/VI/2022]. Thanks to the World Class University Program of Diponegoro University which supported the involvement of Wojewódka-Przybył in the fieldwork. Thanks to, Mirza Hanif Al Fallah and Muhammad Ilham Jasir, and Aulia Rahim for their help in the preparation of equipment.
Funding Information:
The? study? was? conducted? in? Lake? Maninjau,? funded? by?Riset?Kolaborasi? Indonesia,?a?with?the?contract? number?[434-05/UN7.D2/PP/VI/2022].?Thanks?to? the??World? Class?University?Program? of?Diponegoro? University?which?supported?the?involvement?of? Wojewódka-Przybył? in? the? fieldwork.? Thanks? to,? Mirza? Hanif?Al?Fallah? and?Muhammad?Ilham?Jasir,? and?Aulia? Rahim? for? their? help? in? the? preparation? of? equipment.
Publisher Copyright:
© 2023 The author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third-party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit: http://creativecommons. org/licenses/by/4.0/
PY - 2023/3
Y1 - 2023/3
N2 - BACKGROUND AND OBJECTIVES: The lakeside has an enormous sediment carbon storage potential; however, it is susceptible to various environmental changes and can easily become a source of carbon emissions. Understanding the amount of carbon storage in lakeside sediments and organic matter sources may provide information about the potential of lakeside zones in climate change mitigation, particularly for sustainable lake management. This study aims to estimate sediment organic carbon stock and the sources of organic matter in the Maninjau Lakeside-West Sumatera, Indonesia. METHODS: Sediment sampling was performed at five research sites, with a depth of 0–100 centimeters. Sediment samples were divided into 4 subsamples: 0–15; 15–30; 30–50; and 50–100 centimeters. Bulk density and total nitrogen content were analyzed, and the percentage of organic carbon was calculated from the loss of ignition. The sediment organic carbon stock was calculated based on the bulk density and organic carbon content. Carbon per nitrogen ratio was also calculated to determine temporal changes in the sources of organic matter in the lake. FINDINGS: This study demonstrated that Maninjau Lakeside has an enormous potential sedimentary organic carbon stock range between 284.23–442.59 megagrams per carbon per hectare. The highest total sediment carbon stock was found in Duo Koto (442.59 megagrams per carbon per hectare), with the lowest in Koto Kaciak (284.23 megagrams per carbon per hectare). In addition, the study’s results also exhibited significant differences in sediment organic carbon stocks at each location with different land use and cover; in this case, the forest area has a higher carbon stock value than the agricultural and settlement areas. Therefore, it is essential to take initiatives for the restoration and conservation of lakeside areas because of their essential role in mitigating the climate change. The mean ratio of organic carbon and total nitrogen was between 9.96 to 16.91, indicating that phytoplankton, a mixture of floating macrophytes, and submerged vegetation were the sources of organic matter. CONCLUSION: In general, the value of sediment organic carbon stocks tends to be lower in locations with intensive agricultural settlements than in forest areas. This study emphasizes that restoring lakeside wetland is vital in increasing sediment organic carbon stocks and maintaining lake sustainability.
AB - BACKGROUND AND OBJECTIVES: The lakeside has an enormous sediment carbon storage potential; however, it is susceptible to various environmental changes and can easily become a source of carbon emissions. Understanding the amount of carbon storage in lakeside sediments and organic matter sources may provide information about the potential of lakeside zones in climate change mitigation, particularly for sustainable lake management. This study aims to estimate sediment organic carbon stock and the sources of organic matter in the Maninjau Lakeside-West Sumatera, Indonesia. METHODS: Sediment sampling was performed at five research sites, with a depth of 0–100 centimeters. Sediment samples were divided into 4 subsamples: 0–15; 15–30; 30–50; and 50–100 centimeters. Bulk density and total nitrogen content were analyzed, and the percentage of organic carbon was calculated from the loss of ignition. The sediment organic carbon stock was calculated based on the bulk density and organic carbon content. Carbon per nitrogen ratio was also calculated to determine temporal changes in the sources of organic matter in the lake. FINDINGS: This study demonstrated that Maninjau Lakeside has an enormous potential sedimentary organic carbon stock range between 284.23–442.59 megagrams per carbon per hectare. The highest total sediment carbon stock was found in Duo Koto (442.59 megagrams per carbon per hectare), with the lowest in Koto Kaciak (284.23 megagrams per carbon per hectare). In addition, the study’s results also exhibited significant differences in sediment organic carbon stocks at each location with different land use and cover; in this case, the forest area has a higher carbon stock value than the agricultural and settlement areas. Therefore, it is essential to take initiatives for the restoration and conservation of lakeside areas because of their essential role in mitigating the climate change. The mean ratio of organic carbon and total nitrogen was between 9.96 to 16.91, indicating that phytoplankton, a mixture of floating macrophytes, and submerged vegetation were the sources of organic matter. CONCLUSION: In general, the value of sediment organic carbon stocks tends to be lower in locations with intensive agricultural settlements than in forest areas. This study emphasizes that restoring lakeside wetland is vital in increasing sediment organic carbon stocks and maintaining lake sustainability.
KW - Carbon stock
KW - Lakeside
KW - Maninjau lake
KW - Sediment
KW - Sustainable management
UR - http://www.scopus.com/inward/record.url?scp=85141791816&partnerID=8YFLogxK
U2 - 10.22034/gjesm.2023.02.01
DO - 10.22034/gjesm.2023.02.01
M3 - Article
AN - SCOPUS:85141791816
SN - 2383-3572
VL - 9
SP - 173
EP - 192
JO - Global Journal of Environmental Science and Management
JF - Global Journal of Environmental Science and Management
IS - 2
ER -