与植物有关的河口营养迁移过程及其研究进展

沿海生态系统自养生物群落复杂,初级生产力高,虽然这一区域只占海洋表面积的不足2%,但是其初级生产量约占整个海洋初级生产量的20%.近年来沿海生态系统受人类活动干扰较大,营养盐供应变化较大,对植物群落结构和数量变化产生了重要的影响,而植物群落结构和数量的变化又直接或间接对营养盐的迁移过程产生影响.目前,植物对营养物质迁移的影响的研究相对较少.本文讨论了与植物有关的河口营养迁移的机制,并比较了具有不同优势种的植物群落对营养盐迁移的影响及其程度.

Advance in the Research on the Influence of Primary Producers to the Nutrient Transport in the Estuarine Area

Primary producers are quantitatively important in most shallow coastal ecosystems,The produce about 20% of the global marine primary production in these coastal areas which only occupy less than 2 % of the oceanic surface. The coastal ecosystems were highly interfered by human activity in recent years. The supplyof high nutrient fluxes can cause significant changes in the structure and function of the plant community in these ecosystems,and these changes will further influence the nutrient transport in the estuarine area. There are only a few researches about the plant bound nutrient transport currently, This paper discussed the mechanism of the plant bound nutrient transport and compared the influence of different dominant plant species on this kind of nutrient transport.