伐倒木

结果表明，黑松病、健木pH值的差异极显著，因此，通过适当指示剂在伐倒木上的颜色反应进行松材线虫病的检验是可靠的，其可靠性可达95%以上。

And therefore the rapid quarantine test for pinewood nematode , that through the colour reaction made on felled wood by use of the suitable pH indicator was carried , was reliable and its reliability was over 95 % .

Casiofx&4500P/4800P计算器在伐倒木区分求积中的应用

The Application of Calculator CASIO fx & 4500P / 4800P to Sectional Product Calculation of Fallen Timbers

通过2849株冷杉伐倒木测定表明，冷杉林木发生腐朽后，林种结构有明显的变化，优良林种下降，加工材增加。

The determinations of 2 , 849 felled trees of fir have shown that . after fir trees had decayed , excellent timber decreased while the processing timber increased .