摘要
As an important factor influencing the physical,chemical and biological processes of sediments,the bioturbation of macrobenthos has received extensive attention in the study of the biogeochemical processes of sediments.However,previous studies provided limited scope for the effects of the bioturbation on the biogeochemical processes of sediments.Based on the analysis of recently published data,this paper presented an integrated overview to summarize the forms of bioturbation (rework,bioirrigation,biodeposition,bioresuspension,biodiffusion),and the effects of bioturbation on the organic matter decomposition,microorganisms,and nutrient flux at the sediment-water interface.To better understand the impacts of bioturbation on biogeochemical processes of sediments,the research should be strengthened in the following aspects in the future: the combination of field experiment and lab simulation test should be strengthened as for the research method;much more attention should be paid to the other sea areas besides hot sea areas and different ecosystems regarding the research area;and the biogenic elements except nitrogen and phosphorus,microorganisms,and heavy metals should be deepened regarding the research content.
As an important factor influencing the physical,chemical and biological processes of sediments,the bioturbation of macrobenthos has received extensive attention in the study of the biogeochemical processes of sediments. However,previous studies provided limited scope for the effects of the bioturbation on the biogeochemical processes of sediments. Based on the analysis of recently published data,this paper presented an integrated overview to summarize the forms of bioturbation (rework,bioirrigation,biodeposition,bioresuspension,biodiffusion),and the effects of bioturbation on the organic matter decomposition,microorganisms,and nutrient flux at the sediment-water interface. To better understand the impacts of bioturbation on biogeochemical processes of sediments,the research should be strengthened in the following aspects in the future: the combination of field experiment and lab simulation test should be strengthened as for the research method;much more attention should be paid to the other sea areas besides hot sea areas and different ecosystems regarding the research area; and the biogenic elements except nitrogen and phosphorus,microorganisms,and heavy metals should be deepened regarding the research content.
