日本落叶松日本落叶松组织比量（8株，分年轮、早晚材）

本数据记录了日本落叶松组织比量（8株，分年轮、早晚材）的序号、切片编号、射线组织比量、树脂道组织比量、管胞组织比量、射线胞壁组织比量、胞壁率等记录。木材物理力学的各项测定指标，直接反映此种木材的强度等特性，为木材利用和木结构的规范等提供科学数据。本数据库包括物理力学数据和其试验方法（请参看附件1中华人民共和国国家标准GB1927～1943-91《木材物理力学性质试验方法》，附件2木材物理力学各个项目的定义）。

This dataset records the serial numbers, slide numbers, tissue proportions of ray tissues, resin ducts, tracheids, ray cell wall tissues, and cell wall ratios of Japanese larch (Larix kaempferi) samples, which are derived from 8 individual trees and categorized by annual rings, earlywood and latewood. Various measured physical and mechanical properties of wood directly reflect the strength and other characteristics of this wood species, providing scientific data for wood utilization and the formulation of timber structure codes. This database includes physical and mechanical test data and the corresponding test methods. Please refer to Annex 1: Chinese National Standard GB1927～1943-91 *Test Methods for Physical and Mechanical Properties of Wood*, and Annex 2: Definitions of Various Items of Wood Physical and Mechanical Properties.