Vegetation dynamics 1946-2018 in an old-growth conifer forest

被引:0
|
作者
Backeus, Ingvar [1 ]
Hytteborn, Hakan [1 ]
Rydin, Hakan [1 ]
机构
[1] Uppsala Univ, Evolutionary Biol Ctr, Dept Ecol & Genet, Uppsala, Sweden
关键词
long-term changes; nature reserve; south-east Sweden; species richness; spruce forest; NITROGEN DEPOSITION; UNDERSTOREY VEGETATION; BOREAL FORESTS; SOIL ACIDIFICATION; GROUND VEGETATION; LONG; FERTILIZATION; TRENDS; IMPACT; FLORA;
D O I
10.1111/njb.04406
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
We analysed ground vegetation in 250 plots in 2018 in the old-growth Picea abies-dominated forest Saby Vasterskog, south-east Sweden as a follow-up of studies in 1946 and 1998 with the same layout of plots. The vegetation changes were not clearly directional: the species composition in 2018 was intermediate between that of 1946 and 1998, whereas in 1998 species richness was higher and with the unique presence of a number of species indicating small-scale disturbances. Vaccinium myrtillus increased in cover since 1946 and Avenella flexuosa decreased. This goes against regional trends that have been attributed to nitrogen deposition. Regional changes are overshadowed by local dynamics.
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页数:16
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