Cedar Creek Ecosystem Science Reserve site, station Old Field 28 at Cedar Creek, study of plant biomass of Panicum miliaceum 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 Panicum miliaceum measurements in gramsPerSquareMeter units
and were aggregated to a yearly timescale.

生态趋势（EcoTrends）项目由黛布拉·彼得斯博士（约尔纳达盆地长期生态研究网（Jornada Basin LTER）、美国农业部农业研究局（USDA-ARS）约尔纳达实验牧场）与阿里尔·卢戈博士（卢奎洛长期生态研究网（Luquillo LTER）、美国农业部林务局（USDA-FS）卢奎洛实验林）于2004年发起成立，旨在支持长期生态数据集的收集与分析工作。该项目为大型综合研究计划，核心目标是提升长期生态数据的可获取性与复用效率。当前共有约50个由州级与联邦政府资助的研究站点参与并向生态趋势项目贡献数据，其中涵盖全部26个长期生态研究（Long-Term Ecological Research, LTER）站点，以及由美国农业部农业研究服务局（ARS）、美国农业部林务局、美国能源部、美国地质调查局（USGS）及众多高校资助的相关站点。生态趋势项目的数据可通过探索性网络门户（http://www.ecotrends.info）获取。该网络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获取工作。作为LTER溯源感知综合跟踪架构（PASTA）的组成部分，持续进行的数据汇编工作通过手动与自动结合的处理流程完成更新。该网络门户由约尔纳达盆地LTER与LTER网络办公室联合开发。本项来自雪松溪生态科学保护区（Cedar Creek Ecosystem Science Reserve, CDR）的数据集，包含以克/平方米为单位的Panicum miliaceum植物生物量实测数据，且已按年度时间尺度完成聚合。