Kellogg Biological Station site, station Treatment SF, old field successional community, never tilled, study of aboveground net primary productivity of Morus in units of gramsPerMeterSquaredPerYear 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 Kellogg Biological Station (KBS) contains aboveground net primary productivity of Morus measurements in gramsPerMeterSquaredPerYear units and were aggregated to a yearly timescale.

EcoTrends项目于2004年由黛布拉·彼得斯博士（约纳盆地长期生态研究（Long-Term Ecological Research, LTER）站点，USDA-ARS约纳实验牧场）与阿里尔·卢戈博士（卢奎洛长期生态研究（Long-Term Ecological Research, LTER）站点，USDA-FS卢奎洛实验林）创立，旨在支撑长期生态数据集的采集与分析工作。
该项目是一项大型综合研究工作，致力于提升长期生态数据的可获取性与应用效能。目前已有约50个州级及联邦资助的研究站点参与EcoTrends项目并贡献数据，涵盖全部26个LTER站点，以及由美国农业部农业研究局（USDA-ARS）、美国农业部林务局（USDA-FS）、美国能源部、美国地质调查局（US Geological Survey, USGS）及众多高校资助的研究站点。
EcoTrends项目的数据可通过探索型网络门户（http://www.ecotrends.info）获取。
该门户依托交互式Web应用程序，支持用户持续开展数据整合与获取工作。
持续进行的数据整合工作依托LTER溯源感知综合跟踪架构（PASTA），通过人工与自动两种处理方式完成更新。
该网络门户由约纳盆地LTER站点与LTER网络办公室联合开发运营。
以下为来自凯洛格生物站（Kellogg Biological Station, KBS）的数据集，包含以克每平方米每年为单位的桑属（Morus）地上净初级生产力测定数据，且已聚合至年时间尺度。