Phyllostachys heterocycla grew better in lower mountain than middlemountain.
低山较中山更适于毛竹的生长。
2
The terrain of low-middlemountain in Yucheng District of Ya'an is representative in western of SiChuan Province.
四川省雅安市雨城区是川西地区中、低山地形的代表。
3
We considered that the change of nest sites is related with the deterioration of the condition in middlemountain area and the improvement of that in hill area.