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.本数据集采集自美国马萨诸塞州罗利市盐沼（salt marsh）样点内沿样带（transect）布设的样方（quadrat），包含沼泽植被盖度相关数据。本次布设的样带旨在探究沼泽植被的长期动态变化。研究团队最初设置4个样点（共包含12条样带），用于研究盐沼刈割的生态影响：其中标记为McH与EPH的两个样点，在2002年之前均接受定期刈割处理，剩余两个样点PUH与CC作为对照样点。此外，研究团队额外增设两个样点RM与RR（共包含8条样带），最初用于监测芦苇（Phragmites australis）的入侵过程。