Holocene expansion of the Caledonian pinewoods: spatial and temporal patterns at regional and landscape scales
Holocene expansion of the Caledonian pinewoods: spatial and temporal patterns at regional and landscape scales
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喀里多尼亚松林的全新世扩张：区域和景观尺度的时空格局
DOI：
10.1080/17550874.2021.1984601
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发表时间：
2021
影响因子：
1.5
通讯作者：
Huntley B
中科院分区：
文献类型：
--
作者：
Huntley B
背景为了促进气候变化适应，景观和保护管理者需要了解潜在优势物种扩张的时空模式。研究树冠主导树木过去的扩张可以有助于这种理解。目的以苏格兰高地以樟子松为主的全新世中期森林扩张作为模型，测试有关主导树木扩张的假设。方法在沿南北横断面的三个景观中，对一个较大盆地和几个小空洞的全新世沉积物进行花粉分析和放射性碳测年。较大的盆地记录了景观尺度上的扩张时间，而小凹陷则证明了景观内的时空模式。结果松林扩张之前存在的植被影响了松林的景观尺度时空扩张模式。西尔维斯特里斯。开放植被通常更早和/或更大程度地受到入侵；当存在大量温带阔叶树和灌木（例如榛树、栎属）的林地时，入侵通常会发生得较晚，或者不会发生。大多数小空洞，不仅仅是那些在当地种植松林的空洞，都记录了扩张过程中植被的变化。目前的一些景观规模森林组成模式是在当时建立的。 结论 研究过去优势物种的扩张提供了与规划保护和景观管理相关的证据，以促进生态适应，因为物种根据气候变化调整其分布和丰度。
BackgroundTo facilitate climatic change adaptation, landscape and conservation managers require understanding of spatio-temporal patterns of expansion of potential dominant species. Studying past expansions of canopy-dominant trees can contribute such understanding.AimsTest hypotheses about expansions of dominants using as a model the mid-Holocene expansion of forests dominated byPinus sylvestrisin the Scottish Highlands.MethodsPollen analysis and radiocarbon dating of Holocene sediments of a larger basin and several small hollows were performed in three landscapes along a north–south transect. A larger basin records expansion timing at landscape scale, whilst small hollows evidence within-landscape spatio-temporal patterns.ResultsVegetation existing prior to the expansion of pinewoods influenced landscape-scale spatio-temporal expansion patterns ofP. sylvestris. Open vegetation generally was invaded earlier and/or to a greater extent; invasion was often later, or did not occur, where woodland with a substantial temperate broadleaved tree and shrub component (e.g.Corylus avellana, Quercusspp.) was present. Most small hollows, not just those where pinewoods became locally established, recorded vegetation change during the expansion. Some present landscape-scale forest composition patterns were established at that time.ConclusionsStudying past expansions of dominants provides evidence relevant to planning conservation and landscape management to facilitate ecological adaptation as species adjust their distributions and abundances in response to climatic change.
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苏格兰凯恩戈姆山脉的现有林木线
DOI：
--
发表时间：
1967
期刊：
影响因子：
--
作者：
N. V. Pears
通讯作者：
N. V. Pears
苏格兰高地的植物群落
DOI：
10.2307/1792645
发表时间：
1963
期刊：
The Geographical Journal
影响因子：
--
作者：
A. Watt;D. N. Mcvean;D. A. Ratcliffe
通讯作者：
D. A. Ratcliffe
爱尔兰西南部基拉尼奥克林的植被历史：精细空间分辨率花粉分析的证据
影响因子：
5.5
作者：
F. Mitchell
通讯作者：
F. Mitchell
影响因子：
2.8
作者：
R. Bradshaw;O. Zackrisson
通讯作者：
O. Zackrisson
气候不平衡威胁着优先森林保护
影响因子：
8.5
作者：
Huntley B
通讯作者：
Huntley B