Changes in the tree and shrub layer of Wytham Woods (Southern England) 1974–2012: local and national trends compared
Changes in the tree and shrub layer of Wytham Woods (Southern England) 1974–2012: local and national trends compared
复制标题
1974-2012 年 Wytham Woods（英格兰南部）树木和灌木层的变化：地方和国家趋势比较
DOI：
10.1093/forestry/cpu026
复制
发表时间：
2014
期刊：
影响因子：
2.8
通讯作者：
R. C. Thomas
中科院分区：
文献类型：
--
作者：
K. Kirby;D. Bazely;E. Goldberg;J. Hall;R. Isted;S. C. Perry;R. C. Thomas
描述了自1974年以来威瑟姆森林木质成分的变化，与阔叶林地的国家趋势有关，并用于暗示未来变化的影响，例如来自白蜡树枯萎病(Chalara Fraxina)的影响。从1974年、1991年、1999年和2012年在代表树林的网格中分布的164个永久性10×10m样地的乔木层和灌木层的数据，关于物种发生、更新、对树冠和断面积的贡献。森林现在和过去的组成和结构的变化由其他国家层面的调查relatedtopastforestrymanagementandnaturalsuccession/disturbanceprocesses.Theselargelymirrorchanges显示。自1974年以来，森林中的水果树越来越突出，但由于疾病，它的未来还不确定。如果Wytham的精益菌数量出现严重下降，最有可能增加的物种似乎是假柏木、平菇和栎树。将一个地点的长期研究与更广泛的、不太详细的调查联系起来，以探索结果的普遍适用性是有好处的。
Changes in the woody composition of Wytham Woods since 1974 are described, related to national trends in broadleaved woodland, and used to suggest the impact of future changes such as from ash dieback disease (Chalara fraxinea). Data on the tree and shrub layer from 164 permanent 10×10 m plots distributed in a grid acrosstheWoodsarepresentedfrom1974,1991, 1999and 2012,onspecies occurrence,regeneration,contribution to the canopyand basal area. Variations in the current and past composition and structure of the Woods are relatedtopastforestrymanagementandnaturalsuccession/disturbanceprocesses.Theselargelymirrorchanges shownbyother surveysatanational level.Fraxinusexcelsiorhasbeenincreasingin prominenceacrosstheWoods since 1974, but its future is uncertain because of disease. The species most likely to increase if there is a severe decline in F. excelsior at Wytham appear to be Acer pseudoplatanus, Corylus avellana and Quercus robur. There are benefits from linking long-term studies at one site to wider less detailed surveys in order to explore the general applicability of the results.