Ozone provides a natural protective filter against harmful ultra-violet rays from the sun, which can cause sunburn, cataracts and skin cancer as well as damage vegetation.

臭氧提供天然的保护，防止太阳的有害紫外线的侵害，这种紫外线会导致晒斑，白内障，皮肤癌以及危害植物。

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Natural vegetation in Xiaolongmen and adjacent areas can be used as the reference standard of health assessment for they are preserved well, have rational structure and rich species.

小龙门林场及毗邻地区的天然植被保存良好，结构合理、物种丰富，在进行森林健康评价时，可作为健康标准的参考之一。

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The natural vegetation is well developed in forest landscape area, Great Xing′an Range.

大兴安岭地区为森林景观区，植被十分发育。

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