Climatic Disequilibrium Threatens Conservation Priority Forests

Climatic Disequilibrium Threatens Conservation Priority Forests
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气候不平衡威胁着​​优先森林保护

DOI:
10.1111/conl.12349
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发表时间:
2017
影响因子:
8.5
通讯作者:
Huntley B
Huntley B
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
Huntley B

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我们检验了这样一个假设:自 1800 年以来的气候变化导致了未实现的潜在植被变化,这对许多生态系统来说是“气候债务”。喀里多尼亚松林是欧盟优先考虑的森林类型,被用作模型系统,探索两个世纪的气候变化对具有重要保护意义的地点和周围景观的潜在影响。使用估计地形微气候的方法,对 50 m 网格单元估计当前和工业化前的气候,并使用动态植被模型进行模拟。与 1800 年相比,喀里多尼亚核心松林地区现在不太适合松树生长,而更适合橡树生长,而整体景观平均而言更适合两者生长。现在,对松树最有利的地区主要是指定用于保护历史松林的地区之外。在制定保护策略时需要进行范式转变,以避免这一栖息地以及全球许多以树木或其他长寿多年生植物为关键物种的其他栖息地的灾难性损失。
We test the hypothesis that climatic changes since 1800 have resulted in unrealized potential vegetation changes that represent a “climatic debt” for many ecosystems. Caledonian pinewoods, an EU priority forest type, are used as a model system to explore potential impacts of two centuries of climatic change upon sites of conservation importance and surrounding landscapes. Using methods that estimate topographic microclimate, current and preindustrial climates were estimated for 50 m grid cells and simulations made using a dynamic vegetation model. Core Caledonian pinewood areas are now less suitable for growth of pine and more favorable for oak than in 1800, whereas landscapes as a whole are on average more favorable for both. The most favorable areas for pine are now mainly outside areas designated to conserve historical pinewoods. A paradigm shift is needed in formulating conservation strategies to avoid catastrophic losses of this habitat, and of many others globally with trees or other long‐lived perennials as keystone species.
苏格兰高地的植物群落
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