关键词: 海草, 营养盐, 吸收, 附生藻类, seagrass, nutrients, uptake, epiphytic algae

Abstract: Seagrass bed is an important ecosystem of nearshore system, providing significant ecological service function. However, eutrophication in nearshore waters has posed a serious threat to the structure and function of seagrass bed ecosystem. This study summarized the research progress of nutrient uptake process of seagrass and competition mechanism in three aspects: the relationship between nutrients supply and seagrass growth, nutrient uptake process of leaves and roots, competition with epiphytic algae and its effects. Finally, three research directions in the future are pointed out: 1) the nutrients uptake contributions of seagrass leaves and roots in different environmental conditions; 2) the impact mechanism of epiphytic algae on the growth processes of seagrass; 3) the eco-environmental effects of nutrients uptake and competition processes on seagrass bed ecosystem.