In the stream with strong bed load movement there is no benthic macroinvertebrate.

河势散乱且河床运动剧烈的流物种丰度密度均很低甚至，态条件差。

The stream bifurcates into two narrow winding channels.

那条小溪分成两股窄而弯曲的流。

The area above Chashang Section in the Beishi River Valley, a tributary of Fen River, is made up of forested and unforested lands in one and the other.

汾河流北石河岔上断面以上流域由无插花分布组成。