Surface Elevation Table (SET) data (pin heights) from control and fertilized plots at Spartina alterniflora, S. patens and Typha sp. marshes, Plum Island Ecosystems LTER, MA.

A Surface Elevation Table (SET) is used to measure changes in the elevation of the marsh surface at three long term marsh fertilization experimental research sites. The sites include one Typha-dominated brackish marsh, one Spartina alterniflora-dominated salt marsh, and one S. patens-dominated salt marsh. Sites are located on the Rowley and upper Parker Rivers in the Plum Island Ecosystems (PIE) LTER site.

地表高程测量仪（Surface Elevation Table，SET）被用于测定三个长期沼泽施肥实验研究站点的沼泽地表高程变化。这三个站点分别为：以香蒲（Typha）为优势群落的咸淡水沼泽、以互花米草（Spartina alterniflora）为优势群落的盐沼，以及以S. patens为优势群落的盐沼。所有站点均坐落于普卢默岛生态系统（Plum Island Ecosystems，PIE）长期生态研究（Long Term Ecological Research, LTER）站点内的罗利河与帕克河上游河段。