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Response relationships between carbon and nitrogen characteristics of coastal wetlands and socioeconomic development： a case study of Dongtai City， Jiangsu Province， China
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Penghui LI1, 2, Dawei WANG1, 2, Na HUANG1, 2, Yilan JIANG1, 2, Yifei JIA3, Shaowei YUAN4, 5
Environmental Engineering | 2026, 44(3) : 197 - 205
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Environmental Engineering | 2026, 44(3): 197-205
Response relationships between carbon and nitrogen characteristics of coastal wetlands and socioeconomic development： a case study of Dongtai City， Jiangsu Province， China
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Penghui LI1, 2, Dawei WANG1, 2, Na HUANG1, 2, Yilan JIANG1, 2, Yifei JIA3, Shaowei YUAN4, 5
Affiliations
  • 1College of Environment，Hohai University，Nanjing 210098，China
  • 2Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education，Hohai University，Nanjing 210098，China
  • 3School of Ecology and Nature Conservation，Beijing Forestry University，Beijing 100083，China
  • 4Anhui and Huaihe River Water Resource Research Institute，Hefei 230088，China
  • 5Anhui Provincial Key Laboratory of Water Science and Intelligent Water Conservancy，Hefei 230088，China
Published: 2026-03-22 doi: 10.13205/j.hjgc.202603018
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Coastal wetland ecosystems are intrinsically linked to regional socioeconomic development. However， the internal response relationship between these two systems remains unclear. This study took Dongtai City as a study case and used systematic field sampling and multi-source data integration. Partial least squares structural equation modeling （PLS-SEM） was employed to analyze the coupled relationships among socioeconomic development， river surface water quality， and sediment carbon and nitrogen characteristics. The results indicated that over the past five years， both the socioeconomic level and urbanization rate of Dongtai City have increased steadily. Water quality exhibited significant seasonal fluctuations， while a marked declining trend in total nitrogen （TN） was observed. Meanwhile， total organic carbon （TOC） and TN contents in coastal wetland sediments showed minor fluctuations. The PLS-SEM analysis revealed that socioeconomic development indirectly regulated TOC and TN contents in coastal wetlands （path coefficient = 0.1， P < 0.05） by influencing the surface water pollution load of rivers （path coefficient = -0.33， P < 0.001）. This study elucidated the internal nexus between macro-socioeconomic drivers and micro-nutrient characteristics in coastal wetlands， providing a scientific foundation for the synergistic advancement of ecological conservation and the marine economy.

socioeconomic  /  coastal wetlands  /  organic carbon  /  total nitrogen  /  impact pathways
Penghui LI, Dawei WANG, Na HUANG, Yilan JIANG, Yifei JIA, Shaowei YUAN. Response relationships between carbon and nitrogen characteristics of coastal wetlands and socioeconomic development： a case study of Dongtai City， Jiangsu Province， China[J]. Environmental Engineering, 2026 , 44 (3) : 197 -205 . DOI: 10.13205/j.hjgc.202603018
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Year 2026 volume 44 Issue 3
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Article Info
doi: 10.13205/j.hjgc.202603018
  • Receive Date：2026-01-15
  • Online Date：2026-06-25
  • Published：2026-03-22
Article Data
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History
  • Received：2026-01-15
  • Revised：2026-02-09
  • Accepted：2026-02-25
Affiliations
    1College of Environment，Hohai University，Nanjing 210098，China
    2Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education，Hohai University，Nanjing 210098，China
    3School of Ecology and Nature Conservation，Beijing Forestry University，Beijing 100083，China
    4Anhui and Huaihe River Water Resource Research Institute，Hefei 230088，China
    5Anhui Provincial Key Laboratory of Water Science and Intelligent Water Conservancy，Hefei 230088，China
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https://castjournals.cast.org.cn/joweb/hjgc/EN/10.13205/j.hjgc.202603018
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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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