The China Plant Trait Database Version 2.0

Here we present version 2.0 of the China Plant Trait Database, which contains information on morphometric, physical, chemical, photosynthetic and hydraulic traits from 1529 unique species in 140 sites spanning a diversity of vegetation types. Version 2 has five improvements compared to the previous version: (1) new data from a 4-km elevation transect on the edge of Tibetan Plateau, including alpine vegetation types not sampled previously; (2) inclusion of traits related to hydraulic processes, including specific sapwood conductance, the area ratio of sapwood to leaf, wood density and leaf turgor loss point; (3) inclusion of information on soil properties to complement the existing data on climate and vegetation (4) assessments of the reliability of individual trait measurements; and (5) inclusion of standardized checklists and templates for systematical field sampling and measurements.

本研究发布中国植物功能性状数据库（China Plant Trait Database）2.0版，该数据集收录了140个样地中1529个不同物种的形态计量、物理、化学、光合及水力性状信息，样地覆盖多样的植被类型。相较于前代版本，该2.0版共包含五项改进：1. 新增来自青藏高原边缘4千米海拔样带的观测数据，涵盖此前未被采样的高寒植被类型；2. 新增与水力生理过程相关的性状指标，包括边材比导率、边材-叶面积比、木材密度以及叶片膨压丧失点；3. 新增土壤属性信息，以补充现有气候与植被相关数据；4. 开展单个性状测量结果的可靠性评估；5. 新增针对系统性野外采样与测量工作的标准化清单与模板。