Aboveground biomass from control sites in a Spartina patens-dominated salt marsh at Stackyard Rd, Nelson Island, Parker River NWR, Plum Island Ecosystem LTER, Rowley, MA (2019-2023).

Aboveground biomass is determined approximately monthly via clippings at permanent, high marsh control (non-fertilized) plots in a Spartina patens-dominated salt marsh on Nelson Island near Stackyard Rd in the Parker River NWR within the Plum Island Ecosystem (PIE) LTER site, MA.地上生物量的测定工作在美国马萨诸塞州普拉姆岛生态系统（PIE）长期生态研究（LTER）站点内的帕克河国家野生动物保护区（Parker River NWR）开展，具体点位位于斯塔克亚德路附近的纳尔逊岛，针对一片以盐地鼠尾粟（Spartina patens）为优势种的盐沼中的永久高潮盐沼对照（未施肥）样地，通过刈割法实现约每月一次的测定。