Cedar Creek Ecosystem Science Reserve site, station Old Field 53 at Cedar Creek, study of plant biomass of Setaria in units of gramsPerSquareMeter on a yearly timescale

The EcoTrends project was established in 2004 by Dr. Debra Peters
(Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and
Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest)
to support the collection and analysis of long-term ecological datasets.
The project is a large synthesis effort focused on improving the accessibility
and use of long-term data. At present, there are ~50 state and federally funded
research sites that are participating and contributing to the EcoTrends project,
including all 26 Long-Term Ecological Research (LTER) sites and sites funded by
the USDA Agriculture Research Service (ARS), USDA Forest Service,
US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal
(http://www.ecotrends.info). This web portal enables the continuation of data
compilation and accessibility by users through an interactive web application.
Ongoing data compilation is updated through both manual and automatic
processing as part of the LTER Provenance Aware Synthesis Tracking
Architecture (PASTA). The web portal is a collaboration between the Jornada LTER
and the LTER Network Office. The following dataset from Cedar Creek Ecosystem Science Reserve (CDR)
contains plant biomass of Setaria measurements in gramsPerSquareMeter units
and were aggregated to a yearly timescale.

EcoTrends项目由德布拉·彼得斯博士（约拿盆地长期生态学研究网络（Long-Term Ecological Research, LTER）、美国农业部农业研究局约拿实验牧场）与阿里尔·卢戈博士（卢奎略长期生态学研究网络（Long-Term Ecological Research, LTER）、美国农业部林务局卢奎略实验森林）于2004年创立，旨在支撑长期生态学数据集的采集与分析工作。

本项目属于大型综合研究计划，核心目标是提升长期生态学数据的可获取性与应用价值。目前共有约50个州立及联邦资助的研究站点参与并向EcoTrends项目贡献数据，涵盖全部26个长期生态学研究（Long-Term Ecological Research, LTER）站点，以及美国农业部农业研究局（ARS）、美国农业部林务局、美国能源部、美国地质调查局（USGS）下属站点与众多高校站点。

EcoTrends项目的数据可通过探索性网络门户（http://www.ecotrends.info）获取，该门户依托交互式网络应用程序，支持用户持续开展数据汇编与数据访问工作。

依托长期生态学研究网络溯源感知综合跟踪架构（PASTA），项目通过手动与自动结合的处理流程，持续更新数据汇编成果。该网络门户由约拿LTER站点与LTER网络办公室联合开发。

本数据集来自雪松溪生态系统科学保护区（Cedar Creek Ecosystem Science Reserve, CDR），包含以克每平方米为单位的狗尾草属（Setaria）植物生物量测量数据，且已按年度时间尺度完成聚合。