相反，针叶树将侵入白杨树林的边界，越来越多地遮挡白杨所需的阳光。
Instead, coniferous trees will invade the aspen grove's borders and increasingly block out sunlight needed by the aspens.
白杨树林往往是一个很大的有机体。
我拍摄了各种各样的秋天景色的照片。发现有一个很大的山杨树林，可以在里面休息。
I captured various fall scenery photos and found a large aspen grove to relax in.
当我看到路边上明亮、黄色的山杨树林时，我就徒步走了进去，观察可以拍摄那些照片。
When I saw this bright yellow aspen grove on the side of the road, I hiked into it to see what pictures I could get.
中国人工种植的杨树林和农林复合经营系统(杨树与农作物或畜牧生产相结合)约为800万公顷，是法国杨树种植面积的30倍。
The area of planted poplar forests and agroforestry (combining trees and crops or livestock) in China is about 8 million hectares, 30 times greater than the areas under poplar cultivation in France.
如天水服务中心东侧小岛就是保留原有地貌的前提下加入杨树林等新的绿化景观。
For instance, the small island east of the Heavenly Water Service Center has preserved its original landscape with addition of new elements such as the poplar tree forest.
大棉白杨的旁边，是一小片冬天落叶的棉白杨树林，长在那条宽阔多沙的河谷中。
The big cottonwood tree stood apart from a small grove of winter bare cottonwoods which grew in the wide, sandy, arroyo2.
大棉白杨的旁边，是一小片冬天落叶的棉白杨树林，长在那条宽阔多沙的河谷中。
The big cottonwood tree stood apart from a small grove of winter bare cottonwoods which grew in the wide, sandy, arroyo2.
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