Frontiers in Marine Science (Aug 2022)
Eutrophication decreases Halophila beccarii plant organic carbon contribution to sequestration potential
- Hongxue Luo,
- Hongxue Luo,
- Hongxue Luo,
- Hongxue Luo,
- Hongxue Luo,
- Hongxue Luo,
- Songlin Liu,
- Songlin Liu,
- Songlin Liu,
- Songlin Liu,
- Songlin Liu,
- Yuzheng Ren,
- Yuzheng Ren,
- Yuzheng Ren,
- Yuzheng Ren,
- Yuzheng Ren,
- Yuzheng Ren,
- Zhijian Jiang,
- Zhijian Jiang,
- Zhijian Jiang,
- Zhijian Jiang,
- Zhijian Jiang,
- Zhijian Jiang,
- Yunchao Wu,
- Yunchao Wu,
- Yunchao Wu,
- Yunchao Wu,
- Yunchao Wu,
- Xia Zhang,
- Xia Zhang,
- Xia Zhang,
- Xia Zhang,
- Xia Zhang,
- Jinlong Li,
- Jinlong Li,
- Jinlong Li,
- Jinlong Li,
- Jinlong Li,
- Jinlong Li,
- Xiaoping Huang,
- Xiaoping Huang,
- Xiaoping Huang,
- Xiaoping Huang,
- Xiaoping Huang,
- Xiaoping Huang
Affiliations
- Hongxue Luo
- Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Hongxue Luo
- Sanya Institute of Ocean Eco-Environmental Engineering, Sanya, China
- Hongxue Luo
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Hongxue Luo
- University of Chinese Academy of Sciences, Beijing, China
- Hongxue Luo
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
- Hongxue Luo
- Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Songlin Liu
- Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Songlin Liu
- Sanya Institute of Ocean Eco-Environmental Engineering, Sanya, China
- Songlin Liu
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Songlin Liu
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
- Songlin Liu
- Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Yuzheng Ren
- Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Yuzheng Ren
- Sanya Institute of Ocean Eco-Environmental Engineering, Sanya, China
- Yuzheng Ren
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Yuzheng Ren
- University of Chinese Academy of Sciences, Beijing, China
- Yuzheng Ren
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
- Yuzheng Ren
- Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Zhijian Jiang
- Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Zhijian Jiang
- Sanya Institute of Ocean Eco-Environmental Engineering, Sanya, China
- Zhijian Jiang
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Zhijian Jiang
- University of Chinese Academy of Sciences, Beijing, China
- Zhijian Jiang
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
- Zhijian Jiang
- Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Yunchao Wu
- Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Yunchao Wu
- Sanya Institute of Ocean Eco-Environmental Engineering, Sanya, China
- Yunchao Wu
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Yunchao Wu
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
- Yunchao Wu
- Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Xia Zhang
- Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Xia Zhang
- Sanya Institute of Ocean Eco-Environmental Engineering, Sanya, China
- Xia Zhang
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Xia Zhang
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
- Xia Zhang
- Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Jinlong Li
- Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Jinlong Li
- Sanya Institute of Ocean Eco-Environmental Engineering, Sanya, China
- Jinlong Li
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Jinlong Li
- University of Chinese Academy of Sciences, Beijing, China
- Jinlong Li
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
- Jinlong Li
- Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Xiaoping Huang
- Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Xiaoping Huang
- Sanya Institute of Ocean Eco-Environmental Engineering, Sanya, China
- Xiaoping Huang
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
- Xiaoping Huang
- University of Chinese Academy of Sciences, Beijing, China
- Xiaoping Huang
- Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China
- Xiaoping Huang
- Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- DOI
- https://doi.org/10.3389/fmars.2022.986415
- Journal volume & issue
-
Vol. 9
Abstract
Seagrass ecosystems rank among the most effective blue carbon sinks in climate change mitigation and greenhouse gas removal. Nutrient pollution has emerged as a leading threat to seagrass decline and has diminished the carbon sequestration potential in recent decades. Changes in the nutrient regime can also impact the organic carbon compositions (labile and refractory organic carbon compositions) of seagrass tissues, with important implications for determining the quantity and quality of carbon sequestration. However, there is still little information about the impact of nutrient loading on seagrass plant refractory organic carbon composition (ROC), which hinders our ability to reveal the driving mechanisms of anthropogenic factors that decrease seagrass organic carbon sequestration capability. Here, a multidisciplinary approach was employed to investigate the organic carbon variations of Halophila beccarii at five seagrass meadows with contrasting nutrient loading levels. The results showed that H. beccarii plant nitrogen (N) content ranged from 2.21% to 5.65%, which well reflected the external nutrient loading levels. High nutrient loading elevated labile organic carbon content, like free amino acids and soluble sugars. Nevertheless, ROC content (cellulose-associated organic matter) decreased with increasing nutrient loading, which presented a significant negative linear correlation with plant N content. These results provide evidence that eutrophic conditions enhance H. beccarii plant quality (high N and labile organic carbon) and consequently decrease plant ROC sequestration potential. This suggests that reducing nitrogen input to seagrass meadows would aid in increasing seagrass carbon storage.
Keywords
