Reconstructing Holocene climate from tree rings: The potential for a long chronology from the Scottish Highlands
Reconstructing Holocene climate from tree rings: The potential for a long chronology from the Scottish Highlands
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从树木年轮重建全新世气候：苏格兰高地长期年代学的潜力
DOI：
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发表时间：
2012
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通讯作者：
B. Gunnarson
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作者：
Rob Wilson;N. Loader;Miloš Rydval;H. Patton;A. Frith;C. Mills;A. Crone;C. Edwards;Lars;B. Gunnarson;B. Gunnarson
尽管20世纪80年代的研究显示了苏格兰松（Pinus sylvestris L.）为了重建苏格兰高地过去夏季的温度，从那时起，在这一地区几乎没有尝试过树木气候学的工作。这在一定程度上反映了苏格兰高地的天然/半天然松树林地数量有限，分布稀疏，而且缺乏古老的森林。平均而言，该地区的大部分松树的年龄约为225岁。在这里，我们提出了一个正在进行的跨学科的倡议，通过收购现代，历史和亚化石松树材料的原生松林，历史建筑和苏格兰高地的湖泊，开发一个长期的苏格兰年表的第一个结果。从湖泊沉积物中回收的25个亚化石松木的放射性碳测年确定了保存的材料的存在，覆盖了过去8000年的最初集群集中在过去的两千年和早中期全新世。虽然开发一个良好的复制8000年的松树年表将需要很多年，这个初步的研究表明，从西北凯恩戈姆地区的千年长度的松树年表是一个可行的和现实的目标，在不久的将来。在西北欧这个气候重要的地区，这样的记录的重要性不容低估。
Despite promising research in the 1980s showing the potential of Scots pine (Pinus sylvestris L.) for the reconstruction of past summer temperatures in the Scottish Highlands, little dendroclimatic work has been attempted in this region since. This reflects, in part, the limited number of sparsely distributed remnant natural/semi-natural pine woodlands in the Scottish Highlands and the lack of old growth forest therein. On average, most of the pine trees dated in this region are around 225 years in age. Here, we present the first results of an ongoing interdisciplinary initiative to develop a long Scottish chronology through the acquisition of modern, historical and subfossil pine material from the native pinewoods, historic structures and lakes of the Scottish Highlands. Radiocarbon dating of 25 subfossil pine timbers recovered from lake sediments identified the presence of preserved material covering the last 8000 years with initial clusters focused on the last two millennia and early–mid Holocene. Although developing a well-replicated 8000 year pine chronology will take many years, this preliminary study indicates that a millennial length pine chronology from the northwest Cairngorm region is a feasible and realistic objective in the near future. The importance of such a record in this climatically important sector of northwest Europe cannot be underestimated.