| 引用本文： |
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徐满秋,周浩,江志兵,朱元励,邓邦平,于培松,杨静文,曾江宁.基于富营养化状态指数(TRIX)法的象山港富营养化评价[J].海洋开发与管理,2025,42(7):111-120
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| 摘要: |
| 科学的富营养化评价方法对近海富营养化的评价、治理与修复具有重要意义。针对以往象山港富营养化评价过程中缺少生物指标的不足，文章选用富营养化状态指数(TRIX)，根据2015年1月(冬)、4月(春)、7月(夏)、10月(秋)四个航次的调查结果，评估象山港海域富营养化状态，分析其时空变化及关键影响因素。结果表明，象山港2015年全年富营养化程度较高，89%的站位TRIX值大于5，处于富营养化或极度富营养化状态；4个季节中夏季富营养化程度最高；在空间分布上表现为港底富营养化程度高于港口；冬季港底出现的叶绿素a高值可能受电厂温排水的影响。研究表明TRIX法可以较好地反映象山港富营养化症状的季节、空间变化，可满足近海富营养化海域精细化管控与治理的实际需求。 |
| 关键词: 富营养化评价；富营养化状态指数(TRIX)；营养盐；叶绿素a 海湾 |
| DOI：10.20016/j.cnki.hykfygl.2025.07.006 |
| 投稿时间：2024-08-28修订日期：2025-05-23 |
| 基金项目:国家重点研发计划课题（2021YFC3101702）；自然资源部海洋空间资源管理技术重点实验室开放基金（MEMRT202308）；浙江省科技计划项目（2024C03235）；国家自然科学基金（U24A20610）；卫星海洋环境动力学国家重点实验室自主课题（SOED2022）；长江口-浙江近海-邻近东海多学科长期观测(LORCE)计划（SZ2001）. |
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| Evaluation of Eutrophication in Xiangshan Bay Based on the Trophic Index (TRIX) |
| XU Manqiu,ZHOU Hao,JIANG Zhibing,ZHU Yuanli,DENG Bangping,YU Peisong,YANG Jingwen,ZENG Jiangning |
| Marine Science and Technology College, Zhejiang Ocean University;Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, MNR;Functions of Wenzhou Municipal Natural Resources and Planning Bureau;State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, MNR;Key Laboratory of Nearshore Engineering Environment and Ecological Security of Zhejiang Province;Observation and Research Station of Marine Ecosystem in the Yangtze River Delta, MNR;Key Laboratory of Marine Ecological Monitoring and Restoration Technologies, East China Sea Ecology Center, MNR |
| Abstract: |
| The scientific eutrophication evaluation method is significant to the assessment, management and restoration of coastal eutrophication. Because of the lack of biological indicators in the previous eutrophication evaluation for Xiangshan Bay, we used the Trophic Index (TRIX) to analyze the temporal and spatial variation in the eutrophication status and associated controlling factors, based on the survey results of four cruises in January (winter), April (spring), July (summer) and October (autumn) in 2015. The results showed that eutrophication in Xiangshan Bay was severe in 2015, with TRIX value >5 for 89% of the total samples, indicating eutrophic or extremely eutrophic conditions. The eutrophication level was higher in the upper than in the lower bay. Among all seasons, the eutrophication level was the highest in summer. The high value of chlorophyll a in the upper bay in winter may be affected by the thermal discharge from the power plant. This study suggests that the TRIX effectively reflects the seasonal and spatial variation in eutrophication symptoms in the Xiangshan Bay, which can be used for the practical requirements of refined management of coastal eutrophication. |
| Key words: Eutrophication evaluation, Trophic index (TRIX), Nutrient, Chlorophyll a,Bay |
