Bonanza Creek site, station NADP Station AK01, Poker Creek, study of calcium in precipitation (volume-weighted concentration) in units of milligramsPerLiter on a monthly 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 Bonanza Creek (BNZ) contains calcium in precipitation (volume-weighted concentration) measurements in milligramsPerLiter units and were aggregated to a monthly timescale.EcoTrends项目由黛布拉·彼得斯博士（Debra Peters，约那盆地长期生态研究网[Jornada Basin LTER]，美国农业部农业研究局约那实验牧场）与阿里尔·卢戈博士（Ariel Lugo，卢奎约长期生态研究网[Luquillo LTER]，美国农业部林业局卢奎约实验林）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工作，核心聚焦于提升长期数据的可获取性与使用效率。目前，共有约50个州级与联邦级资助的研究站点参与并为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（USDA Agricultural Research Service, ARS）、美国农业部林业局、美国能源部、美国地质调查局（US Geological Survey, USGS）及众多高校资助的站点。 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。持续推进的数据汇编工作，依托长期生态研究网溯源感知综合跟踪架构（PASTA），通过手动与自动两种处理方式进行更新。本网络门户由约那LTER与LTER网络办公室合作开发。 以下来自博南扎溪（Bonanza Creek, BNZ）的数据集包含以毫克每升为单位的降水量钙含量（体积加权浓度）测量数据，且已聚合至月尺度。