Coweeta site, station Hall County, GA (FIPS 13139), study of human population (total) 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 Coweeta (CWT) contains human population (total) measurements in number 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站（Jornada Basin LTER）、美国农业部农业研究局（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站（Luquillo LTER）、美国农业部林业局（USDA-FS）卢奎洛实验林）发起，旨在支撑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，聚焦于提升长期生态数据的可获取性与应用价值。目前，已有约50个州级与联邦资助的研究站点参与并为EcoTrends项目贡献数据，其中包括全部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局（Agricultural Research Service, ARS）、美国农业部林业局（United States Department of Agriculture Forest Service, USDA-FS）、美国能源部、美国地质调查局（United States Geological Survey, USGS）及众多高校资助的研究站点。EcoTrends项目产生的数据可通过探索性网络门户（http://www.ecotrends.info）获取。该门户依托交互式网络应用，支持用户持续开展数据整合与数据获取工作。作为长期生态研究网络溯源感知综合跟踪架构（Provenance Aware Synthesis Tracking Architecture, PASTA）的组成部分，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更新。该网络门户由约纳盆地LTER与LTER网络办公室联合开发。本次提供的考伊塔（CWT）站点数据集包含以数值为单位的总人口统计数据，且已被聚合至年度时间尺度。