Fall 2009 plant monitoring survey -- biomass calculated from shoot height and flowering status of plants in permanent plots at GCE sampling sites 1-10

The biomass of plants surveyed in permanent plots at 10 GCE LTER sampling sites in October 2009 was estimated based on allometric relationships between biomass and shoot height and flowering status derived for each site, zone, and species in October 2002 and October 2008. Biomass was only calculated for dominant species, including Spartina alterniflora, S. cynosuroides, Juncus roemerianus, and Zizaniopsis miliacea, as well as rarer species including Scirpus spp, Panicum spp. and Typha angustifolia. This data set is based on GCE plant monitoring survey data set PLT-GCEM-1004a, and allometric relationships were based on GCE data sets PLT-GCEM-0211b, PLT-GCEM-0711, and PLT-GCEM-2011.

2009年10月，研究人员对10个GCE LTER采样点的永久样地内的植物开展调查，并基于2002年10月与2008年10月针对各采样点、分区及物种建立的生物量与株高、开花状态间的异速生长关系，对调查所得植物的生物量进行了估算。本次生物量计算仅覆盖优势物种与稀见物种，其中优势物种包括互花米草（Spartina alterniflora）、S. cynosuroides、柔茎灯心草（Juncus roemerianus）以及类莎草（Zizaniopsis miliacea）；稀见物种则包括莎草属（Scirpus spp.）、黍属（Panicum spp.）与狭叶香蒲（Typha angustifolia）。本数据集依托GCE植物监测调查数据集PLT-GCEM-1004a构建，其所采用的异速生长关系则源自GCE数据集PLT-GCEM-0211b、PLT-GCEM-0711及PLT-GCEM-2011。