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On the decline of ground lichen forests in the Swedish boreal landscape: Implications for reindeer husbandry and sustainable forest management

机译:论瑞典博尔雅德林地造成地衣森林的衰落:驯鹿畜牧业和可持续森林管理的影响

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摘要

Lichens are a bottleneck resource for circumpolar populations of reindeer, and as such, for reindeer husbandry as an indigenous Sami land-use tradition in northern Sweden. This study uses ground lichen data and forest information collected within the Swedish National Forest Inventory since 1953, on the scale of northern Sweden. We found a 71 % decline in the area of lichen-abundant forests over the last 60 years. A decline was observed in all regions and age classes and especially coincided with a decrease of > 60 year old, open pine forests, which was the primary explanatory factor in our model. The effects of reindeer numbers were inconclusive in explaining the decrease in lichen-abundant forest. The role that forestry has played in causing this decline can be debated, but forestry can have a significant role in reversing the trend and improving ground lichen conditions.
机译:地衣是驯鹿群体的瓶颈资源,因此,驯鹿畜牧是瑞典北部的土着萨米土地利用传统。 这项研究自1953年以来,在瑞典国家森林库存中收集了地衣数据和森林信息,以瑞典北部的规模。 在过去的60年里,我们在地衣丰富的森林地区发现了71%的下降。 在所有地区和年龄课程中观察到衰落,特别是恰逢其一次地减少> 60岁,开放的松树林,这是我们模型中的主要解释性因素。 驯鹿数的影响在解释地衣丰富的森林中减少不确定。 林业在造成这种下降的角色可以辩论,但林业可以在逆转趋势和改善地衣条件方面具有重要作用。

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