Plum Island Ecosystems site, station NADP Station MA13, East, MA, study of sulfate in wet deposition in units of kilogramsPerHectare 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 Plum Island Ecosystems (PIE)
contains sulfate in wet deposition measurements in kilogramsPerHectare units
and were aggregated to a yearly timescale.

EcoTrends项目由黛布拉·彼得斯博士（约拿盆地长期生态研究网（Long-Term Ecological Research, LTER），美国农业部-农业研究服务局约拿实验牧场）与阿里尔·卢戈博士（卢奎洛长期生态研究网（Long-Term Ecological Research, LTER），美国农业部林业局卢奎洛实验森林）于2004年创立，旨在支持长期生态数据集的采集与分析工作。该项目为大型综合研究项目，核心目标是提升长期数据的可访问性与实际应用价值。目前共有约50个由州政府与联邦政府资助的研究站点参与并向EcoTrends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（Agriculture Research Service, ARS）、美国农业部林业局、美国能源部、美国地质调查局（United States Geological Survey, USGS）与众多高校资助的研究站点。EcoTrends项目的数据集可通过探索性网络门户（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汇编工作，并保障数据的可访问性。作为LTER溯源感知综合跟踪架构（Provenance Aware Synthesis Tracking Architecture, PASTA）的组成部分，持续推进的数据汇编工作通过手动与自动两种处理方式完成更新。该网络门户由约拿盆地LTER与LTER网络办公室合作开发运营。本次取自普拉姆岛生态系统（Plum Island Ecosystems, PIE）的数据集，包含以千克/公顷为单位的湿沉降硫酸盐测量数据，且已被聚合至年度时间尺度。