Reasons for the scarcity of vegetation in Yuanjiang River Basin

Poor soil and poor lighting conditions.

1. The poor soil quality, too little organic matter and trace elements, and too poor soil in Yuanjiang River Basin lead to sparse and low vegetation.

2. The weather environment in Yuanjiang River Basin is poor, mostly cloudy, with poor lighting conditions, and the vegetation can't get enough sunshine, so it is relatively low and sparse.