气候变化领域集成服务门户(CCPortal): Response of bryophytes to afforestation, increase of air humidity, and enrichment of soil diaspore bank

CCPortal

DOI	10.1016/j.foreco.2018.09.004
	Response of bryophytes to afforestation, increase of air humidity, and enrichment of soil diaspore bank
	Ingerpuu N.; Kupper T.; Vellak K.; Kupper P.; Sõber J.; Tullus A.; Zobel M.; Liira J.
发表日期	2019
ISSN	0378-1127
起始页码	64
结束页码	72
卷号	432
英文摘要	The abandonment of agricultural areas is usually accompanied by the stochastic encroachment of shrubs and trees or deliberate afforestation, but this leads as a rule to the decline of grassland plant diversity. Future climate change may increase precipitation and air humidity in temperate and boreal forest zones, and thus change vegetation dynamics. We conducted a five-year experiment on the Free Air Humidity Manipulation experimental facility (FAHM) with planted deciduous trees to examine how both the grassland afforestation with deciduous trees and the increase of air humidity in interaction with forest soil supplementation and cover of herbaceous layer affect the species richness, composition and cover of bryophyte layer. The effects of the same factors on the cover of herbaceous layer were also analysed. The species of bryophytes and cover of herbaceous and bryophyte layer were surveyed in September of 2007–2011. During these early years of forest succession, herbaceous layer cover decreased and bryophyte cover increased, although the direct suppressing effect of tree canopy was observed on both layers. The input of forest soil as diaspore deposit of bryophytes had some positive effect on the cover of bryophytes, while the increased air humidity had quite limited effect. The density of tree canopy (defined in our study through Leaf Area Index) first promoted the species richness of bryophytes, particularly of species with grassland preference. However, together with the herbaceous layer it became suppressing in the last year. The species richness of bryophytes declined during the first years and then stabilised. The decline relied mainly on the disappearance of grassland species. The richness of bryophytes was supported by forest soil supplementation only in the initial year. The bryophyte species composition changed rapidly in first two years mainly due to decline of short-lived grassland species and perennial species started to dominate. Our results show that bryophyte succession during the afforestation is largely driven by natural loss of grassland specialists after tree canopy closure, while diaspore supplementation from forest and improved air moisture level had small effects. © 2018 Elsevier B.V.
英文关键词	Abandoned grassland; FAHM; Indicators; LAI; Succession
语种	英语
scopus关键词	Climate change; Indicators (instruments); Plant shutdowns; Reforestation; Refractory materials; Soils; Stochastic systems; Abandoned grassland; Agricultural areas; Boreal forest zone; Experimental facilities; FAHM; Succession; Suppressing effects; Vegetation dynamics; Plants (botany); afforestation; boreal forest; bryophyte; deciduous forest; environmental indicator; experimental study; forest soil; grassland soil; herb; humidity; leaf area index; precipitation (climatology); propagule; seed bank; specialist; species richness; succession; temperate environment; vegetation dynamics; Air; Coverings; Humidity; Increments; Reforestation; Soil; Trees; bryophytes
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156406
作者单位	University of Tartu, Institute of Ecology and Earth Sciences, Department of Botany, Lai 40, Tartu, 51005, Estonia; University of Tartu, Natural History Museum, Vanemuise 46, Tartu, 51014, Estonia
推荐引用方式 GB/T 7714	Ingerpuu N.,Kupper T.,Vellak K.,et al. Response of bryophytes to afforestation, increase of air humidity, and enrichment of soil diaspore bank[J],2019,432.
APA	Ingerpuu N..,Kupper T..,Vellak K..,Kupper P..,Sõber J..,...&Liira J..(2019).Response of bryophytes to afforestation, increase of air humidity, and enrichment of soil diaspore bank.Forest Ecology and Management,432.
MLA	Ingerpuu N.,et al."Response of bryophytes to afforestation, increase of air humidity, and enrichment of soil diaspore bank".Forest Ecology and Management 432(2019).