Plant foliar traits (DP1.10026.001)

This data product contains the quality-controlled, native sampling resolution data from NEON's measurement of foliar traits in sun lit, georeferenced vegetation samples. Trait measurements include leaf mass per area, leaf water content, chlorophyll, carbon and nitrogen concentrations and stable isotopes, major and minor elements, and lignin. Whenever possible, foliar data are collected in conjunction with overflights of the NEON Airborne Observation Platform (AOP), and starting in 2020 polygon shapefiles are provided to link sampled crowns to airborne imagery. For additional details, see the user guide, protocols, and science design listed in the Documentation section below. Queries for this data product will return field collection data, physical and chemical measurements, and crown polygons (where available) on a per sample basis. Several items are available in the expanded data package, including summary tables of external lab precision and accuracy as well as information on woody sample geolocation.

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.

bgc\_CNiso\_externalSummary: 30

cfc_carbonNitrogen: 270

cfc_chemistrySubsampling: 90

cfc_chlorophyll: 120

cfc_chlorophyllParameters: 30

cfc_chlorophyllSummary: 30

cfc_elements: 180

cfc_elementsSummary: 30

cfc_fieldData: 90

cfc_lignin: 180

cfc_LMA: 90

cfc_shapefile: 90

lig_externalSummary: 30

vst_mappingandtagging: 120

搜集汇总

背景与挑战

背景概述

该数据集为美国国家生态观测网络（NEON）发布的植物叶性状数据产品（DP1.10026.001），包含2016年6月至2020年9月期间在38个站点采集的受阳光照射冠层植物的叶性状测量数据，如叶质量面积比、叶水含量、叶绿素、碳氮浓度与稳定同位素、元素含量和木质素等。数据采用针对森林/灌木和草地的不同采样设计，并与航空遥感数据关联，提供冠层多边形形状文件以支持空间分析。