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-herbaceous perennial plants from all terrestrial NEON sites with qualifying woody 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本数据产品涵盖经质量管控的原生采样分辨率数据，此类数据采集自所有拥有合格木本植被的陆地国家生态观测网络（NEON）站点内的原位测量结果，测量对象包括活体、直立枯立木本个体、灌丛群以及非草本多年生植物。针对每个个体的具体测量项取决于其生长型，此类测量旨在支撑生物量与生产力估算、灌丛体积及生物量估算，以及多套NEON机载遥感数据产品的校准与验证工作。通常而言，遥感仪器可捕获的相对大型个体将被制图、标记并测量；其余较小的林下个体仅会被标记与测量，不进行制图。群落结构与制图数据将按样地内的每个个体分别上报。为统一样地采样工作量，较小的个体可通过嵌套小样方进行二次抽样；若需将嵌套小样方的测量结果换算至样地尺度，需借助vst_perplotperyear表中上报的总采样面积数据。如需了解更多细节，请参阅本数据产品详情网页的文档部分所列的用户指南、实验规程与科学设计方案。 数据发布延迟时长： 野外数据和/或样本采集至数据发布的预期耗时如下，按下载数据包内各数据表统计（单位：天）。更多信息请参阅《数据产品用户指南》。 vst_apparentindividual：120天 vst_mappingandtagging：120天 vst_perplotperyear：180天 vst_shrubgroup：120天 vst_non-woody：90天

搜集汇总

背景与挑战

背景概述

该数据集提供陆地生态站点中木本和非木本植物的详细结构测量数据，包括个体植物的映射位置和生长状态，用于生物量估算和遥感数据校准。数据覆盖2014-2020年期间42个NEON站点，包含多个关联表格记录不同层次的植被信息。