Luquillo Experimental Forest site, station Canovanas County, PR (FIPS 72029), study of number of farms in units of number 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 Luquillo Experimental Forest (LUQ) contains number of farms measurements in number units and were aggregated to a yearly timescale.EcoTrends项目由Debra Peters博士（乔纳达盆地长期生态研究站点，USDA-ARS乔纳达实验牧场）与Ariel Lugo博士（卢奎略长期生态研究站点，USDA-FS卢奎略实验林）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计划，核心聚焦于提升长期生态数据的可获取性与使用效率。目前，已有约50个由州级与联邦政府资助的研究站点参与并向EcoTrends项目贡献数据，其中包含全部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）、美国农业部林务局（USDA Forest Service）、美国能源部、美国地质调查局（US Geological Survey, USGS）与众多高校资助的各类站点。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应用程序，支持用户持续开展数据整合与数据获取工作。持续进行的数据整合工作通过人工与自动处理相结合的方式完成，该流程隶属于长期生态研究站点溯源感知综合跟踪架构（LTER Provenance Aware Synthesis Tracking Architecture, PASTA）。本网络门户由乔纳达LTER站点与LTER网络办公室合作开发。以下来自卢奎略实验林（LUQ）的数据集，包含以若干单位计量的农场数量测量数据，并已按年度时间尺度完成聚合。