River-lake ecosystems exhibit a strong seasonal cycle of greenhouse gas emissions
Abstract Inland lakes are a crucial source of greenhouse gases, such as carbon dioxide, methane and nitrous oxide. The interconnected river-lake systems feature multiple lake regions, wherein numerous rivers interconnect various lake regions. Their intricate hydrological conditions and interactions...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-12-01
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| Series: | Communications Earth & Environment |
| Online Access: | https://doi.org/10.1038/s43247-024-01912-8 |
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| author | Shijie Wang Shanghua Wu Yuzhu Dong Xianglong Li Yaxin Wang Yijing Li Ying Zhu Jiahui Deng Xuliang Zhuang |
| author_facet | Shijie Wang Shanghua Wu Yuzhu Dong Xianglong Li Yaxin Wang Yijing Li Ying Zhu Jiahui Deng Xuliang Zhuang |
| author_sort | Shijie Wang |
| collection | DOAJ |
| description | Abstract Inland lakes are a crucial source of greenhouse gases, such as carbon dioxide, methane and nitrous oxide. The interconnected river-lake systems feature multiple lake regions, wherein numerous rivers interconnect various lake regions. Their intricate hydrological conditions and interactions distinguish them from conventional lakes, which typically have a single and relatively static water body. However, the greenhouse gas emission characteristics, as well as the driving forces of the interconnected river-lake systems, are still under-researched. Here, we carried out bi-seasonal in situ surveys across a typical interconnected river-lake system, Dongting Lake, along with a meta-analysis derived from 168 lakes spanning six continents, to elucidate this issue. We found that interconnected river-lake systems exhibit a unique temporal variation in carbon dioxide and nitrous oxide fluxes, with positive fluxes during the wet season but transitioning to sinks during the dry season. Greenhouse gas fluxes in conventional stable lakes are frequently correlated with abiotic factors, such as hydro-climatological conditions and trophic status. While in Dongting Lake, specific microbial species that are important to the cycling of macronutrients and other less common nutrients, alongside microbial predatory behaviour, can better predict greenhouse gas fluxes. Our study highlights the importance of biotic predictors in prospective greenhouse gases flux estimates. |
| format | Article |
| id | doaj-art-d042c8ef4b5f4f51a5be573eb5888ea1 |
| institution | Kabale University |
| issn | 2662-4435 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Earth & Environment |
| spelling | doaj-art-d042c8ef4b5f4f51a5be573eb5888ea12024-12-29T12:48:51ZengNature PortfolioCommunications Earth & Environment2662-44352024-12-015111310.1038/s43247-024-01912-8River-lake ecosystems exhibit a strong seasonal cycle of greenhouse gas emissionsShijie Wang0Shanghua Wu1Yuzhu Dong2Xianglong Li3Yaxin Wang4Yijing Li5Ying Zhu6Jiahui Deng7Xuliang Zhuang8Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesKey Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesKey Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesKey Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesKey Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesKey Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesKey Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesKey Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesKey Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of SciencesAbstract Inland lakes are a crucial source of greenhouse gases, such as carbon dioxide, methane and nitrous oxide. The interconnected river-lake systems feature multiple lake regions, wherein numerous rivers interconnect various lake regions. Their intricate hydrological conditions and interactions distinguish them from conventional lakes, which typically have a single and relatively static water body. However, the greenhouse gas emission characteristics, as well as the driving forces of the interconnected river-lake systems, are still under-researched. Here, we carried out bi-seasonal in situ surveys across a typical interconnected river-lake system, Dongting Lake, along with a meta-analysis derived from 168 lakes spanning six continents, to elucidate this issue. We found that interconnected river-lake systems exhibit a unique temporal variation in carbon dioxide and nitrous oxide fluxes, with positive fluxes during the wet season but transitioning to sinks during the dry season. Greenhouse gas fluxes in conventional stable lakes are frequently correlated with abiotic factors, such as hydro-climatological conditions and trophic status. While in Dongting Lake, specific microbial species that are important to the cycling of macronutrients and other less common nutrients, alongside microbial predatory behaviour, can better predict greenhouse gas fluxes. Our study highlights the importance of biotic predictors in prospective greenhouse gases flux estimates.https://doi.org/10.1038/s43247-024-01912-8 |
| spellingShingle | Shijie Wang Shanghua Wu Yuzhu Dong Xianglong Li Yaxin Wang Yijing Li Ying Zhu Jiahui Deng Xuliang Zhuang River-lake ecosystems exhibit a strong seasonal cycle of greenhouse gas emissions Communications Earth & Environment |
| title | River-lake ecosystems exhibit a strong seasonal cycle of greenhouse gas emissions |
| title_full | River-lake ecosystems exhibit a strong seasonal cycle of greenhouse gas emissions |
| title_fullStr | River-lake ecosystems exhibit a strong seasonal cycle of greenhouse gas emissions |
| title_full_unstemmed | River-lake ecosystems exhibit a strong seasonal cycle of greenhouse gas emissions |
| title_short | River-lake ecosystems exhibit a strong seasonal cycle of greenhouse gas emissions |
| title_sort | river lake ecosystems exhibit a strong seasonal cycle of greenhouse gas emissions |
| url | https://doi.org/10.1038/s43247-024-01912-8 |
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