PIE LTER salt marsh vegetation cover data from regularly monitored quadrats along transects in Rowley, MA.

Marsh vegetation cover data from quadrats along transects in salt marsh sites in Rowley, MA. The transects are intended to study long term changes in marsh vegetation. Four sites ((12 transects) were originally set up to study the impact of salt marsh haying. Two of these sites (labeled McH and EPH) were regularly hayed until 2002. The other two (PUH and CC) were reference sites. Two additional sites labeled RM and RR (8 transects) were originally set up to track invasion by Phragmites australis.

美国马萨诸塞州罗利市盐沼（salt marsh）样地中，沿样带（transect）布设的样方（quadrat）对应的沼泽植被盖度数据。本样带网络的布设目的为研究沼泽植被的长期变化。最初共设置4个样地（含12条样带），以探究盐沼刈割的生态影响；其中标注为McH与EPH的两个样地曾定期开展盐沼刈割作业，直至2002年停止，剩余PUH与CC两个样地作为对照样地。另外增设的标注为RM与RR的两个样地（含8条样带），最初旨在监测芦苇（Phragmites australis）的入侵过程。