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Xue, Ru [Author]; Zhang, Ke [Author]; Liu, Xiaoling [Author]; Jiang, Bing [Author]; Luo, Hongbing [Author]; Li, Mei [Author]; Mo, You [Author]; Liu, Cheng [Author]; Li, Lin [Author]; Fan, Liangqian [Author]; Chen, Wei [Author]; Cheng, Lin [Author]; Chen, Jia [Author]; Chen, Fenghui [Author]; Zhuang, Daiwei [Author]; Qing, Jing [Author]; Lin, Yuanmao [Author]; Zhang, Xiaohong [Author]

Vertical Methane Fluxes Driven by Methanogens in Riparian Buffers of a Sponge City Park

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  • Media type: E-Book
  • Title: Vertical Methane Fluxes Driven by Methanogens in Riparian Buffers of a Sponge City Park
  • Contributor: Xue, Ru [VerfasserIn]; Zhang, Ke [VerfasserIn]; Liu, Xiaoling [VerfasserIn]; Jiang, Bing [VerfasserIn]; Luo, Hongbing [VerfasserIn]; Li, Mei [VerfasserIn]; Mo, You [VerfasserIn]; Liu, Cheng [VerfasserIn]; Li, Lin [VerfasserIn]; Fan, Liangqian [VerfasserIn]; Chen, Wei [VerfasserIn]; Cheng, Lin [VerfasserIn]; Chen, Jia [VerfasserIn]; Chen, Fenghui [VerfasserIn]; Zhuang, Daiwei [VerfasserIn]; Qing, Jing [VerfasserIn]; Lin, Yuanmao [VerfasserIn]; Zhang, Xiaohong [VerfasserIn]
  • imprint: [S.l.]: SSRN, [2022]
  • Extent: 1 Online-Ressource (30 p)
  • Language: English
  • DOI: 10.2139/ssrn.4028963
  • Identifier:
  • Origination:
  • Footnote: In: CATENA17184
  • Description: Soils are a large source of atmospheric methane, which is a prevalent greenhouse gas. The vertical flux pattern of methane in soils is unclear. We investigated relationships between methane vertical fluxes in the soil, total organic carbon (TOC) and methanogens in a riparian buffer of the Living Water Garden, a sponge city park, from August 2018 to January 2020. Average surface methane fluxes were 81.86 mg m-2 h-1 and ranged from 20.42 mg m-2 h-1 to 190.75 mg m-2 h-1. Cumulative methane fluxes from studied area were 7.26 kg CO2eq m−2 year−1 and the global warming potential (GWP) was at a moderate level. Results of structural equation model (SEM) showed that vertical methane fluxes varied with soil depth and were mainly regulated by methanogenic communities (λ = 0.44) and methanogenic diversity (λ = -0.47). Remarkably, the contribution of methanogenic genes abundance (λ = -0.19) and soil total organic carbon (λ = -0.28) at each soil depth to vertical methane fluxes was low, implying that the effect of microbial source carbon on vertical methane fluxes should be considered. These results indicated that methanogenic communities composition and diversity are effective predictors of vertical methane fluxes and modulate the relationship between TOC and vertical methane fluxes. These findings provide direct monitoring evidence for controlling vertical methane fluxes by regulating TOC and methanogens activity in soil
  • Access State: Open Access