Cedar Creek Ecosystem Science Reserve site, station Old Field 4 at Cedar Creek, study of plant biomass of Arabis divaricarpa 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 Arabis divaricarpa measurements in gramsPerSquareMeter units and were aggregated to a yearly timescale.

EcoTrends项目由黛布拉·彼得斯博士（乔尔纳达盆地长期生态学研究站，美国农业部农业研究局乔尔纳达试验牧场）与阿里尔·卢戈博士（卢奎洛长期生态学研究站，美国农业部林务局卢奎洛试验林）于2004年创立，旨在支撑长期生态数据集的收集与分析工作。本项目为一项大型综合研究计划，核心目标是提升长期生态数据的可获取性与使用效率。目前共有约50个州级及联邦资助的研究站点参与EcoTrends项目并贡献数据，其中涵盖全部26个长期生态学研究（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）及众多高校资助的研究站点。EcoTrends项目的数据可通过探索性网络门户（http://www.ecotrends.info）获取。该网络门户依托交互式Web应用，支持用户持续开展数据汇编与数据获取工作。作为长期生态学研究网溯源感知综合跟踪架构（Provenance Aware Synthesis Tracking Architecture，PASTA）的组成部分，持续进行的数据汇编工作通过手动与自动处理相结合的方式完成更新。本网络门户由乔尔纳达LTER与LTER网络办公室合作搭建。本次提及的塞达克里克生态科学保护区（CDR）数据集，包含以克每平方米为单位的弯蕊芥（Arabis divaricarpa）植物生物量测量数据，且已按年尺度进行聚合。