Assessment of trophic status in Changjiang (Yangtze) River estuary
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Assessment of trophic status in Changjiang (Yangtze) River estuary
Assessment of trophic status in Changjiang (Yangtze) River estuary
海洋湖沼学报(英文)2007年25卷第3期 页码:261-269
Affiliations:
1. The First Institute of Oceanography State Oceanic Administration
2. The Second Institute of Oceanography State Oceanic Administration
Author bio:
Funds:
Supported by the National Key Basic Research Program, Ministry of Science and Technology of China (No. 2001CB4097) and the Foundation of the Key Laboratory of Marine Ecosystem and Biogeochemistry, SOA (No. LMEB200603).
Assessment of trophic status in Changjiang (Yangtze) River estuary[J]. 海洋湖沼学报(英文), 2007,25(3):261-269.
Wang, B. Assessment of trophic status in Changjiang (Yangtze) River estuary., Chin. J. Ocean. Limnol. 25, 261–269 (2007). https://doi.org/10.1007/s00343-007-0261-z
Assessment of trophic status in Changjiang (Yangtze) River estuary[J]. 海洋湖沼学报(英文), 2007,25(3):261-269. DOI: 10.1007/s00343-007-0261-z.
Wang, B. Assessment of trophic status in Changjiang (Yangtze) River estuary., Chin. J. Ocean. Limnol. 25, 261–269 (2007). https://doi.org/10.1007/s00343-007-0261-zDOI:
Assessment of trophic status in Changjiang (Yangtze) River estuary
摘要
Abstract
The integrated methodology for the assessment of estuarine trophic status (ASSETS)
which was extended and refined from the United States National Estuarine Eutrophication Assessment (NEEA)
is a multi-parameter assessment system and has been widely used in eutrophication assessment in estuarine and coastal waters. The ASSETS was applied to evaluate the trophic status of the Changjiang (Yangtze) River estuary
one of the largest estuaries in the world. The following main results were obtained: (i) The estuarine export potential is “moderate susceptibility” due to the “moderate” dilution potential and “moderate” flushing potential; (ii) The overall human influence (OHI) index classified the impact of nutrients in the system as “high” due to the high level of nutrient discharge by the river which channels anthropogenic impacts in the catchments to the estuarine system; (iii) The overall eutrophic condition (OEC) in the estuary was classified into the “high” category due to frequent occurrence of nuisance and toxic algal blooms in the mixing and seawater zones; (iv) Since the nutrient loadings (e.g.
DIN) in the river is expected to continue to increase in the near future following the population increase and rapid economic growth throughout the drainage basin
the nutrient-related symptoms in the estuary are likely to substantially worsen
which leads to the “worsen high” category for the definition of future outlook (DFO). The combinations of the three components (i.e.
OHI
OEC
and DFO) lead to an overall grade as “bad” for the trophic status in the Changjiang River estuary.
关键词
Keywords
references
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相关作者
Baohong Chen
Weidong Ji
Kaiwen Zhou
Qing He
Tingting Fu
Jianrong MA
Xianfu ZHAO
Boqiang QIN
相关机构
Third Institute of Oceanography State Oceanic Administration
Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences
Key Laboratory of Ministry of Water Resources for Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem, Institute of Hydroecology, Ministry of Water Resources & Chinese Academy of Sciences
State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences