Shortgrass Steppe site, station NADP Station CO22, Pawnee, CO, study of chloride 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 Shortgrass Steppe (SGS)
contains chloride in wet deposition measurements in kilogramsPerHectare units
and were aggregated to a yearly timescale.

EcoTrends项目由Debra Peters博士（约那盆地长期生态研究站点，USDA-ARS约那实验牧场）与Ariel Lugo博士（卢奎约长期生态研究站点，USDA-FS卢奎约实验林）于2004年创立，旨在支持长期生态数据集的收集与分析工作。
本项目为大型综合研究计划，核心目标在于提升长期生态数据的可获取性与应用效率。目前共有约50个州立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个长期生态研究（Long-Term Ecological Research, LTER）站点，以及美国农业部农业研究服务局（USDA-ARS）、美国农业部林务局（USDA-FS）、美国能源部、美国地质调查局（USGS）资助的站点与众多高校的相关研究站点。
EcoTrends项目的数据可通过探索性网络门户（http://www.ecotrends.info）获取，该门户搭载交互式网页应用，支持用户持续进行数据汇编与数据获取。
作为LTER溯源感知综合跟踪架构（Provenance Aware Synthesis Tracking Architecture, PASTA）的组成部分，其持续的数据汇编工作通过手动与自动两种处理方式进行更新。
该网络门户由约那LTER站点与LTER网络办公室合作开发。
本次提供的短草草原（Shortgrass Steppe, SGS）数据集包含以千克每公顷为单位的湿沉降氯化物测量数据，且已按年尺度完成聚合。