Responses of ecological stability in subtropical coastal phytoplankton communities to varying N:P ratios under present and future scenarios
文献类型：期刊论文
| 作者 | Chen, Jichen1,3,4; Xiong, Yonglong1,3,4; Ge, Jingke1; Zhao, Xin1; Feng, Yuan1; Li, Xu1; Song, Chi1; Yang, Xiao1; Zhang, Rui1; Yang, Jin-Yu Terence1 |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2026-04-01 |
| 卷号 | 293页码:12 |
| 关键词 | Climate change Elemental stoichiometry Ecological stability Nutrient unbalance Phytoplankton Primary productivity |
| ISSN号 | 0043-1354 |
| DOI | 10.1016/j.watres.2026.125438 |
| 通讯作者 | Gao, Guang(guang.gao@xmu.edu.cn) |
| 英文摘要 | Anthropogenic activities are driving elevated N:P ratios in coastal waters and climate change. However, the ecological stability of plankton ecosystems under these combined stressors remains poorly understood. Using 32day mesocosm experiments, we evaluated how subtropical plankton ecosystems respond to elevated N:P ratios (40:1) under present (20 degrees C, 440 ppm CO2) and future (23 degrees C, 1000 ppm CO2) scenarios in the first half period, followed by the next half period of restoration to Redfield ratio (16:1). A control group maintained a N:P ratio of 16:1 throughout the experiment. Elevated N:P stimulated phytoplankton biomass and primary productivity, with more pronounced effects observed under the future climate scenario. After 5-day nutrient restructuring, phytoplankton biomass and primary productivity returned to the control levels. However, a rapid rebound was detected after day 23, particularly under the future scenario. Relative to the present scenario, ecological stability (resistance, resilience, and recovery) of phytoplankton biomass and primary productivity declined in the future scenario. Furthermore, nutrient restructuring led to a marked shift from diatom- to dinoflagellate and chlorophyte-dominated assemblages, which was more significant in the future scenario. Elevated N:P ratios also enhanced grazing rates of zooplankton, with stronger effects in the future scenario, though grazing rates returned to control levels following nutrient restoration. Elevated N:P did not affect elemental stoichiometry immediately but enhanced POC:POP and PON:POP by the end of the experiment, particularly in the future scenario. Our findings highlight that mitigating nitrogen inputs alone may be insufficient to restore coastal ecosystems; climate change would increase the challenges of coastal restoration due to nutrient restructuring. |
| WOS关键词 | ALGAL ; RESTORATION ; PHOSPHORUS ; DIVERSITY ; BLOOMS ; BAY |
| 资助项目 | State Key Laboratory of Marine Environmental Science, Xiamen University ; National Key Research and Devel-opment Program of China[2022YFC3105304] ; Open Project of Key Laboratory of Marine Environmental Survey Technology and Applica-tion, Ministry of Natural Resources[MESTA-2024-A001] ; Interna-tional Cooperation Seed Funding Project for China's Ocean Decade Actions[GHZZ3702840002024020000020] ; Fujian Provincial Sci-ence and Technology Planning Projects[2022L3001] ; Fujian Special Fund for the Development of Marine and Fishery[FJHYF-ZH-2023-04] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001679713600001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204685]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 通讯作者 | Gao, Guang |
| 作者单位 | 1.Xiamen Univ, Coll Ocean & Earth Sci, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China 2.Shandong Univ, Inst Environm Res, Qingdao 266237, Peoples R China 3.Xiamen Univ, Natl Observat & Res Stn Taiwan Strait Marine Ecosy, Zhangzhou, Peoples R China 4.Xiamen Univ, Dongshan Swire Marine Stn D SMART, Dongshan, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Jichen,Xiong, Yonglong,Ge, Jingke,et al. Responses of ecological stability in subtropical coastal phytoplankton communities to varying N:P ratios under present and future scenarios[J]. WATER RESEARCH,2026,293:12. |
| APA | Chen, Jichen.,Xiong, Yonglong.,Ge, Jingke.,Zhao, Xin.,Feng, Yuan.,...&Gao, Guang.(2026).Responses of ecological stability in subtropical coastal phytoplankton communities to varying N:P ratios under present and future scenarios.WATER RESEARCH,293,12. |
| MLA | Chen, Jichen,et al."Responses of ecological stability in subtropical coastal phytoplankton communities to varying N:P ratios under present and future scenarios".WATER RESEARCH 293(2026):12. |
入库方式： OAI收割
来源：海洋研究所
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