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Organic carbon mass accumulation rate and its influencing factors in intermountain basin sediments of northwest Pacific Ocean
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Jidong Li1, Dong Sun2, 3, 4, Chunsheng Wang2, 3, 4, 5, Juan Yang1, *
Haiyang Xuebao | 2021, 43(4) : 122 - 132
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Haiyang Xuebao | 2021, 43(4): 122-132
• Research Note •
Organic carbon mass accumulation rate and its influencing factors in intermountain basin sediments of northwest Pacific Ocean
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Jidong Li1, Dong Sun2, 3, 4, Chunsheng Wang2, 3, 4, 5, Juan Yang1, *
Affiliations
  • 1School of Ocean Sciences, China University of Geosciences(Beijing), Beijing 100083, China
  • 2Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
  • 3Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources, Hangzhou 310012, China
  • 4Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519080, China
  • 5School of Oceanography, Shanghai Jiao Tong University, Shanghai 200030, China
Published: 2021-04-25 doi: 10.12284/hyxb2021048
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Carbon sinking is one of the important ecological services of ocean ecosystems, which acts as a driving force for energy flow and material cycle. Based on the 48th China scientific cruise in the northwest Pacific Ocean, the investigation on the sedimentary environment of intermountain basin was carried out regarding to the characteristics and influencing factors of total organic carbon mass accumulation rate (Forgc). The results show that the Forgc in the northwestern Pacific Ocean basin ranges from 1.41 g/(m2·ka) to 1.73 g/(m2·ka), with an average of 1.60 g/(m2·ka). As a whole, about 0.003 1% of the region’s net primary productivity is buried in sediments annually. Both Forgc and net primary productivity transfer efficiency are lower in the northwestern Pacific intermountain basin in comparison with those in the eastern Pacific Ocean and equatorial Pacific Ocean. Many environmental factors influenced the Forgc in this area, induding biogeochemical factors in the water column and sediments, such as net primary productivity, sediment mass accumulation rate, organic carbon content, redox potential, and those topographic factors, such as the distance from the nearest seamount and water depth.

sediments  /  total organic carbon mass accumulation rate  /  net primary productivity  /  transfer efficiency
Jidong Li, Dong Sun, Chunsheng Wang, Juan Yang. Organic carbon mass accumulation rate and its influencing factors in intermountain basin sediments of northwest Pacific Ocean[J]. Haiyang Xuebao, 2021 , 43 (4) : 122 -132 . DOI: 10.12284/hyxb2021048
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Article Info
doi: 10.12284/hyxb2021048
  • Receive Date：2020-07-17
  • Online Date：2026-02-26
  • Published：2021-04-25
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History
  • Received：2020-07-17
  • Revised：2020-11-30
Funding
Affiliations
    1School of Ocean Sciences, China University of Geosciences(Beijing), Beijing 100083, China
    2Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
    3Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources, Hangzhou 310012, China
    4Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519080, China
    5School of Oceanography, Shanghai Jiao Tong University, Shanghai 200030, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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