Impact of Ocean Plants on Atmosphere

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Biosphere/Hydrosphere/Land–Atmosphere Interactions".

Deadline for manuscript submissions: closed (28 February 2024) | Viewed by 723

Special Issue Editor


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Guest Editor
Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
Interests: CO2 flux; carbon storage; wetlands

Special Issue Information

Dear Colleagues,

Global greenhouse gas concentrations (CO2 and CH4) have reached high levels. Coastal plant ecosystems (including seagrass beds, mangrove, salt marsh, etc.) commonly referred to as 'blue carbon' have high primary productivity and act as carbon sinks. CO2 will be bound to primary producers in blue carbon ecosystems and converted into body tissue biomass through photosynthesis, where it is then sequestrated in sediment for a long period of time through a series of physical, chemical and biological processes. However, plants might enhance CH4 emission due to their abundant organic matter input and the formation of an anaerobic environment in sediment. Further, the CO2 and CH4 flux between ecosystems and the atmosphere are influenced by many environmental factors, for e.g., tidal immersion, solar radiation, temperature, terrestrial river input, et. The significant lack of case studies on the greenhouse gas flux between blue carbon ecosystems and the atmosphere limits our capacity to formulate strategies to mitigate climate change.

Dr. Songlin Liu
Guest Editor

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Keywords

  • blue carbon
  • CO2 flux
  • CH4 flux
  • carbon sequestration
  • influence factors
  • climate change

Published Papers (1 paper)

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26 pages, 12704 KiB  
Case Report
Distribution and Storage Characteristics of Soil Organic Carbon in Tidal Wetland of Dandou Sea, Guangxi
by Mengsi Wang, Huanmei Yao, Zengshiqi Huang, Yin Liu, Meijun Chen, Maoyuan Zhong and Junchao Qiao
Atmosphere 2024, 15(4), 431; https://doi.org/10.3390/atmos15040431 - 30 Mar 2024
Viewed by 551
Abstract
In order to study the distribution characteristics of soil organic carbon (SOC) and soil organic carbon storage (SOCS) among different wetland types in Dandou Sea tidal wetland in Guangxi, firstly, based on Sentinel–2 imaging and random forest algorithm, combined with the existing tidal [...] Read more.
In order to study the distribution characteristics of soil organic carbon (SOC) and soil organic carbon storage (SOCS) among different wetland types in Dandou Sea tidal wetland in Guangxi, firstly, based on Sentinel–2 imaging and random forest algorithm, combined with the existing tidal wetland data, a 10 m resolution tidal wetland dataset in Guangxi from 2019 to 2023 was generated, covering mangroves, salt marshes and tidal flats. The results show that the overall accuracy of the recognition results is higher than 96%, and the Kappa coefficient is higher than 0.95, which indicates high accuracy. Subsequently, the distribution characteristics and influencing factors of SOC and SOCS in different habitats were analyzed. The results showed that the SOC content of mangroves and salt marshes was higher than that of tidal flats. The SOC content of mangrove, salt marshes and tidal flats in 0–60 cm soil layer was 5.30–10.42 g/kg, 7.60–9.84 g/kg, and 1.29–2.25 g/kg, respectively. The changes of SOCS were 12.41–26.48 t/ha, 19.58–24.15 t/ha, and 3.61–6.86 t/ha, respectively. With the increase of soil depth, the SOC and SOCS of mangroves decreased gradually, and the SOC and SOCS of salt marshes increased gradually, and SOC and SOCS were mainly affected by soil bulk density (BD), soil moisture content (MC) and pH. Full article
(This article belongs to the Special Issue Impact of Ocean Plants on Atmosphere)
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