白桦

Aiming at the characteristic of sapstain for Betula platyphylly, the separation methods for sapstain fungi was discussed.

摘要针对白桦木材易变色特点，探讨了东北白桦变色菌分离方法。

In particular, a song called The Birch Forest brought Pu Shu's name to the forestage.

特别是，一首歌叫白桦林带来浦名字给石洪涛。

In midmost of the stream, embraced in the weir's shimmering arm-spread, a small island lay anchored, fringed close with willow and silver birch and alder.

在大坝那臂膀环抱中，安卧一小岛，四周密密层层长、白桦和赤杨。

That means the birch from high longitude and latitude areas will have lower content of the ash, extraction and lignin, higher content of the holocellulose and pentosan in the wood.

这表明，选择较高经纬度地区白桦，可以降低灰分、抽出物、木素含量，提高综纤维素和聚戊糖含量。