Vegetation structure (DP1.10098.001)

This data product contains the quality-controlled, native sampling resolution data from in-situ measurements of live and standing dead woody individuals, shrub groups, and non-woody perennial plants from all terrestrial NEON sites with qualifying vegetation. The exact measurements collected per individual depend on growth form, and these measurements are focused on enabling biomass and productivity estimation, estimation of shrub volume and biomass, and calibration / validation of multiple NEON airborne remote-sensing data products. In general, comparatively large individuals that are visible to remote-sensing instruments are mapped, tagged, and measured, and other smaller and understory individuals are tagged and measured but not mapped. Structure and mapping data are reported per individual per plot. Smaller individuals may be subsampled using nested subplots in order to standardize the per plot sampling effort; total sampled area data reported in the vst_perplotperyear table are required to convert measurements made using nested subplots to the plot scale. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage. Latency: The expected time from data and/or sample collection in the field to data publication is as follows, for each of the data tables (in days) in the downloaded data package. See the Data Product User Guide for more information. vst_apparentindividual: 120 vst_mappingandtagging: 120 vst_perplotperyear: 180 vst_shrubgroup: 120 vst_non-woody: 90 vst_identificationHistory: 7本数据产品包含经过质量管控的原生采样分辨率数据，这些数据源自对所有符合植被筛选标准的陆地国家生态观测网络（NEON）站点内的活体、枯立木本个体、灌丛群以及非木本多年生植物开展的原位测量。针对每个个体采集的确切测量项取决于其生长型，此类测量旨在支持生物量与生产力估算、灌丛体积及生物量估算，以及多款NEON机载遥感数据产品的校准与验证。通常而言，遥感仪器可观测到的体型相对较大的个体将被绘制地图、标记并测量；其余体型较小的林下个体仅会被标记与测量，不会绘制地图。样地内的每一个体的结构与制图数据均会被记录上报。为统一样地采样工作量，可通过嵌套小样方对体型较小的个体进行子采样；若需将嵌套小样方的测量结果转换至样地尺度，需参考vst_perplotperyear表中记录的总采样面积数据。如需了解更多细节，请查阅本数据产品详情网页中“文档”板块所列的用户指南、实验规程与科学设计方案。 发布延迟： 下载的数据包中各数据表从野外数据和/或样本采集到正式发布的预期耗时（单位：天）如下所示。更多信息请参阅《数据产品用户指南》。 vst_apparentindividual表：120天 vst_mappingandtagging表：120天 vst_perplotperyear表：180天 vst_shrubgroup表：120天 vst_non-woody表：90天 vst_identificationHistory表：7天

搜集汇总

背景与挑战

背景概述

该数据集（DP1.10098.001）由美国国家生态观测网络（NEON）提供，包含2014年至2023年间从42个陆地站点收集的植被结构测量数据，涵盖木本和非木本植物的个体测量、位置映射和元数据。数据用于支持生物量估算、生产力分析和遥感验证，采样设计基于植物胸径、覆盖度等标准，并采用嵌套子图标准化采样努力，适用于生态研究和碳循环分析。