Annual primary productivity of Spartina alterniflora in control and fertilized plots at Law's Point, Rowley River, Plum Island Ecosystem LTER, MA.

Annual productivity is determined from aboveground biomass data in a Spartina alterniflora-dominated salt marsh plots on the Rowley River within the Plum Island Ecosystems (PIE) LTER site. Aboveground biomass is determined non-destructively.

年生产力由普卢默岛生态系统（Plum Island Ecosystems, PIE）长期生态研究（LTER）站点内罗利河沿岸以互花米草（Spartina alterniflora）为主的盐沼样地的地上生物量数据推算得到。地上生物量采用无损方法进行测定。