1) Large diameter tree
大径木
1.
Based on the stands structure of natural broad-leaved forest with high-yield large diameter trees, it systemically analyzed three major factors affecting this kind of stands structure: largest diameter tree to leave in stands ( LDT), the relation of the number of trees in one d.
采用省级固定样地和伐区调查设计中小班全林每木样地相结合的方法,以天然阔叶林高产大径木林分结构为载体,详细分析了影响该林分结构的三个主要因子:林木最大保留直径(LDT),相邻径级立木株数之比(q)和林分保留断面积(RBA)。
2) big diameter pit log
大径坑木
1.
It was found that the commercial wood, big diameter pit log and slash of Robinia pseudoacacia Linn stand correlated with the average age (A) of the stand in power function, and correlated with the average diameter D and height H of the stand linearly.
刺槐林分经济材、大径坑木、废材随林分平均年龄变化呈幂函数相关，随林分平均直径、林分平均高变化呈直线相关。
3) Big diameter timber of Cuninghamia lanceolata
杉木大径材
4) Tai Tong Tree Walk
大棠树木研习径
5) Tai Tan Tree Walk
大滩树木研习径
6) Tai Tam Tree Walk
大潭树木研习径
补充资料：径径
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