Effects of global change on key processes of primary production in marine ecosystems

Since the industrial revolution, marine ecosystems have faced unprecedented stress caused by increasing temperature and atmospheric CO₂ concentration as a result of anthropogenic activities. In this review, we analyzed the domestic and international research status about impacts of global change on marine ecosystems by bibliometrics, briefly introduced the history of the research on marine ecosystems under global change, and reviewed the main progress in studies about the effects of global change on key processes of marine primary production, focusing on the impacts of ocean warming, ocean acidification, and eutrophication and hypoxia. We also summarized the major issues in current studies and proposed future research directions in the field.