Even more than mountainside slides of mud or snow, naturally occurring forest fires promote the survival of aspen trees.

自然发生的森林火灾甚至比山体滑坡或积雪更能促进白杨树的生长。

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While traveling to a newly logged area to burn slash piles I wanted to take a picture of the forest floor. The trees had been thinned to increase aspen tree regeneration.

当我行驶到一个新录入地区去燃烧沼泽低地里的堆积物时，我总是想拍摄一些林地上的图片。

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The Birch, pine, spruce, aspen and so on. in a more scattered distribution of small patches of forest landscape form heterogeneous patches of forest landscape pattern.

白桦林、樟子松、云杉、山杨等以较分散的小斑块分布于森林景观斑块中形成异质森林景观格局。

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Steve Robertson, of NHFT, described aspen as a "charismatic" tree for forest biodiversity.

BBC: Bid to boost 'charismatic' tree

Roddy Macleod, of Forest Enterprise Scotland, which has planted hundreds of young aspen, said it was a positive project.

BBC: Bid to boost 'charismatic' tree

He has embarked on an ambitious plan to regrow stands of the imperiled Aspen tree, protecting them from elk with fortresslike structures made from forest slash.

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