Identifying future climate refugia in central European mountain forests

IF 6.3 1区 环境科学与生态学 Q1 ECOLOGY
Sarah Le Berre, Dominik Thom, Rupert Seidl, Cécile Remy
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引用次数: 0

Abstract

确定中欧山地森林未来的气候避难所
森林受到人为气候变化的压力越来越大,造成物种范围和森林群落组成的深刻变化。有些地区可以长期维持物种,作为现有群落的避难所。我们评估了贝希特斯加登国家公园(德国)气候避难所的潜力,并研究了地形、气候和生物特征的影响。利用基于个体的森林景观和干扰模型“iLand”,我们模拟了在历史和未来气候(代表性浓度路径[RCP] 4.5和8.5)下1000多年的森林发展和干扰(风和树皮甲虫爆发)。利用改良的Bray-Curtis相似性指数,结合物种持久性和稀有性,比较了现在和未来的群落,从而量化了避难所的容量。然后应用增强回归树来确定难民的关键环境驱动因素。在RCP 4.5和RCP 8.5条件下,研究区难民容量分别下降了64.6%和68.8%。低海拔和高海拔的森林最容易失去防护林,而中等海拔的森林变化相对较小。过去的管理遗产是未来避难所容量的最强决定因素,表明当前与潜在自然植被的分歧对避难所容量有很强的负面影响。我们发现功能冗余与未来避难所容量呈正相关。降水仅在严重气候变化情景下才会增加难民容量。值得注意的是,在气候变化的情况下,像松柏这样的标志性物种仍然存在于避难所,但仍然受到空间限制,强调了有针对性的保护必要性。合成。气候避难所可能是未来物种群落保护的关键。我们发现,未来的气候避难所受到管理历史和当前树木功能冗余的强烈影响。确定气候变化条件下山林避难能力热点为指导山林保护管理策略提供了实用工具。我们的结论是,在保护区网络的设计中应越来越多地考虑气候难民。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Ecology
Journal of Ecology 环境科学-生态学
CiteScore
10.90
自引率
5.50%
发文量
207
审稿时长
3.0 months
期刊介绍: Journal of Ecology publishes original research papers on all aspects of the ecology of plants (including algae), in both aquatic and terrestrial ecosystems. We do not publish papers concerned solely with cultivated plants and agricultural ecosystems. Studies of plant communities, populations or individual species are accepted, as well as studies of the interactions between plants and animals, fungi or bacteria, providing they focus on the ecology of the plants. We aim to bring important work using any ecological approach (including molecular techniques) to a wide international audience and therefore only publish papers with strong and ecological messages that advance our understanding of ecological principles.
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