Interactions with successional stage and nutrient status determines the life-form-specific effects of increased soil temperature on boreal forest floor vegetation

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Hedwall, Per-OlaSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för sydsvensk skogsvetenskap,Southern Swedish Forest Research Centre (author)

Interactions with successional stage and nutrient status determines the life-form-specific effects of increased soil temperature on boreal forest floor vegetation

Article/chapterEnglish2015

Publisher, publication year, extent ...

2015-01-30
Wiley,2015
Wiley Open Access,2024

Numbers

LIBRIS-ID:oai:slubar.slu.se:67423
https://res.slu.se/id/publ/67423URI
https://doi.org/10.1002/ece3.1412DOI

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Language:English
Summary in:English

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SwePubSwePub

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

Notes

The boreal forest is one of the largest terrestrial biomes and plays a key role for the global carbon balance and climate. The forest floor vegetation has a strong influence on the carbon and nitrogen cycles of the forests and is sensitive to changes in temperature conditions and nutrient availability. Additionally, the effects of climate warming on forest floor vegetation have been suggested to be moderated by the tree layer. Data on the effects of soil warming on forest floor vegetation from the boreal forest are, however, very scarce. We studied the effects on the forest floor vegetation in a long-term (18years) soil warming and fertilization experiment in a Norway spruce stand in northern Sweden. During the first 9years, warming favored early successional species such as grasses and forbs at the expense of dwarf shrubs and bryophytes in unfertilized stands, while the effects were smaller after fertilization. Hence, warming led to significant changes in species composition and an increase in species richness in the open canopy nutrient limited forest. After another 9years of warming and increasing tree canopy closure, most of the initial effects had ceased, indicating an interaction between forest succession and warming. The only remaining effect of warming was on the abundance of bryophytes, which contrary to the initial phase was strongly favored by warming. We propose that the suggested moderating effects of the tree layer are specific to plant life-form and conclude that the successional phase of the forest may have a considerable impact on the effects of climate change on forest floor vegetation and its feedback effects on the carbon and nitrogen cycles, and thus on the climate.

Subject headings and genre

NATURVETENSKAP Biologi Ekologi hsv//swe
NATURAL SCIENCES Biological Sciences Ecology hsv//eng
LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske Skogsvetenskap hsv//swe
AGRICULTURAL SCIENCES Agriculture, Forestry and Fisheries Forest Science hsv//eng

Added entries (persons, corporate bodies, meetings, titles ...)

Skoglund, JerrySwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology(Swepub:slu)98863 (author)
Linder, SuneSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för sydsvensk skogsvetenskap,Southern Swedish Forest Research Centre(Swepub:slu)49789 (author)
Sveriges lantbruksuniversitetInstitutionen för sydsvensk skogsvetenskap (creator_code:org_t)
Sveriges lantbruksuniversitet

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In:Ecology and Evolution: Wiley5, s. 948-9602045-7758

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By the author/editor: Hedwall, Per-Ola; Skoglund, Jerry; Linder, Sune

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NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Ecology

AGRICULTURAL SCIENCES: AGRICULTURAL SCI ...; and Agriculture Fore ...; and Forest Science

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By the university: Swedish University of Agricultural Sciences

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