However, The Mongolian pine height, density and the height and covering degree of grass under forest highly was not remarkable relevance with BSD respectively.

• 樟子松林的胸径和森林的郁闭度与鸟类多样性呈显著的正相关,树的高度、密度、森林下草的高度和盖度与鸟类多样性相关性不显著。