首页|Mutual feedback between algal blooming and global warming

Mutual feedback between algal blooming and global warming

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Global warming and algal blooms have been two of the most pressing problems faced by the world today.In recent decades,numerous studies indicated that global warming promoted the expansion of algal blooms.However,research on how algal blooms respond to global warming is scant.Global warming coupled with eutrophication promoted the rapid growth of phytoplankton,which resulted in an expansion of algal blooms.Algal blooms are affected by the combined effects of global warming,including increases in temperatures,CO2 concentration,and nutrient input to aquatic systems by extreme weather events.Since the growth of phytoplankton requires CO2,they appear to act as a carbon sink.Unfortunately,algal blooms will release CH4,CO2,and inorganic nitrogen when they die and decompose.As substrate nitrogen increases from decompose algal biomass,more N2O will be released by nitrification and denitrification.In comparison to CO2,CH4 has 28-fold and N2O has 265-fold greenhouse effect.Moreover,algal blooms in the polar regions may contribute to melting glaciers and sea ice(will release greenhouse gas,which contribute to global warming)by reducing surface albedo,which consequently would accelerate global warming.Thus,algal blooms and global warming could form feedback loops which prevent human survival and development.Future researches shall examine the mechanism,trend,strength,and control strategies involved in this mutual feedback.Additionally,it will promote global projects of environmental protection combining governance greenhouse gas emissions and algal blooms,to form a geoengineering for regulating the cycles of carbon,nitrogen,and phosphorus.

climate changecarbon neutralityeutrophicationgreenhouse gasglaciers meltinggeoengineering

Jianrong MA、Guijun YANG、Xianfu ZHAO、Boqiang QIN、Kun SHAN、Botian ZHOU、Yan ZENG、Jingfu WANG、Jingan CHEN

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Chongqing Institute of Green and Intelligent Technology,Chinese Academy of Sciences,Chongqing 400714,China

State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China

School of Environment and Ecology,Jiangnan University,Wuxi 214122,China

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,Wuhan 430079,China

State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,China

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Chongqing Water Conservancy Bureau Project国家自然科学基金Opening Fund of the State Key Laboratory of Environmental GeochemistryStrategic Pilot Science and Technology

5000002021BF4000141601537SKLEG2021202XDA23040303

2024

10.1007/s00343-023-3093-6

海洋湖沼学报(英文版)
中国海洋湖沼学会

海洋湖沼学报(英文版)

CSTPCD
影响因子：0.386
ISSN：2096-5508
年,卷(期)：2024.42(3)