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本数据产品包含经质量管控的原生采样分辨率数据，此类数据源自对所有符合植被筛选标准的陆地NEON站点内的活体、直立枯立木本个体、灌丛群以及非木本多年生植物的原位测量。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，以及多款NEON机载遥感数据产品的校准与验证工作。 总体而言，遥感仪器可捕捉到的相对较大的个体将被制图、标记并测量，而其余较小的林下个体仅会被标记与测量，不会进行制图。结构与制图数据将按样地内的每个个体分别记录上报。为标准化样地采样工作量，较小的个体可通过嵌套小样方进行子采样；若需将嵌套小样方的测量结果转换至样地尺度，需使用vst_perplotperyear表中上报的总采样面积数据。如需更多详情，请参阅本数据产品详情网页「文档」板块所列的用户指南、实验方案与科学设计文档。 数据发布延迟： 本下载数据包内各数据表从野外数据和/或样本采集到数据公开的预期耗时（单位：天）如下，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 vst_identificationHistory：7天

搜集汇总

背景与挑战

背景概述

该数据集由NEON发布，包含2014年至2022年间美国42个陆地站点中木本和非木本植物的结构测量数据（如高度、直径、冠幅等），用于生物量和生产力估算及遥感数据校准。数据通过标准化协议收集，涵盖树木、灌木、藤本等多种生长形式，并包括采样元数据以支持样地尺度分析。数据集整合了之前分开的木本和非木本植被数据产品，提高了数据使用的便利性。