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A study on particulate nitrogen isotope distribution, isotope characteristics and controlling factors in the southern Yellow Sea in summer
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Maojun Yan1, Shuhang Dong1, Xiaosong Zhong1, Xiaoyan Ning2, Yu Xin2, *
Haiyang Xuebao | 2019, 41(12) : 14 - 25
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Haiyang Xuebao | 2019, 41(12): 14-25
• Marine Chemistry •
A study on particulate nitrogen isotope distribution, isotope characteristics and controlling factors in the southern Yellow Sea in summer
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Maojun Yan1, Shuhang Dong1, Xiaosong Zhong1, Xiaoyan Ning2, Yu Xin2, *
Affiliations
  • 1 Collge of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100 China
  • 2 Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education, Ocean University of China, Qingdao 266100, China
Published: 2019-12-25 doi: 10.3969/j.issn.0253-4193.2019.12.002
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Yellow Sea is a semi-enclosed marginal sea that is significantly impacted by human activities. One of the major characteristics of Yellow Sea is the long-term existence of intensive cold water mass in summer. In order to study the cycling of particulate nitrogen in summer Yellow Sea, we analyzed the organic carbon and nitrogen content and isotope of the suspended particulate matter and of the surface sediments in South Yellow Sea in summer, 2016. We focus on the spatial variances in particulate nitrogen content, isotope character and the controlling factors respectively in coastal waters and cold water masse realm. In the coastal waters, the particulate nitrogen (PN) are comparatively higher and the vertical variances of nitrogen isotope (δ15NPN) are small, while total nitrogen content (TN) in coastal sediment are lower and the nitrogen isotope (δ15NTN) are mostly negative. In central south Yellow Sea where cold water masses exists, the PN is characterized of low content, significant vertical variances in δ15NPN, while TN in sediment are characterized of high content and positive δ15NTN. We further run bottom critical shear stress simulation and environmental factors analysis, and found out that the spatial variances of particulate nitrogen content and nitrogen isotopes in the South Yellow Sea was mainly controlled by the vertical mixing in water column, benthic boundary dynamic processes, and partially contributed by re-mineralization and terrestrial PN input.

southern Yellow Sea  /  particulate nitrogen  /  marine sediment  /  nitrogen isotope
Maojun Yan, Shuhang Dong, Xiaosong Zhong, Xiaoyan Ning, Yu Xin. A study on particulate nitrogen isotope distribution, isotope characteristics and controlling factors in the southern Yellow Sea in summer[J]. Haiyang Xuebao, 2019 , 41 (12) : 14 -25 . DOI: 10.3969/j.issn.0253-4193.2019.12.002
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Year 2019 volume 41 Issue 12
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Article Info
doi: 10.3969/j.issn.0253-4193.2019.12.002
  • Receive Date：2019-04-12
  • Online Date：2026-04-03
  • Published：2019-12-25
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  • Received：2019-04-12
  • Revised：2019-07-22
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    1 Collge of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100 China
    2 Key Laboratory of Marine Chemistry Theory and Technology Ministry of Education, Ocean University of China, Qingdao 266100, 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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