NDLI: Vegetation Composition Determines Microbial Activities in a Boreal Forest Soil

Content Provider	Springer Nature Link
Author	Ohtonen, R. Väre, H.
Abstract	Forest soil ecology was studied in Fennoscandinavian dry Scots pine forests grazed by reindeer to varying extents (ungrazed, lichen-dominated-sites; grazed sites; and bryophyte-dominated sites). We hypothesized that the productivity parameters of the site (i.e., tree growth and soil nutrient concentrations), the vegetation composition, and the microbial activities are directly correlated. Since the productivity of the lichen-dominated ecosystem is low, microbial activities are assumed to be naturally low. Grazing was expected to decrease both the amount of Scots pine fine roots and the soil microbial activities. Several variables on the characteristics of the soil microbial community, Scots pine fine roots, soil nutrients, and tree growth were studied in relation to vegetation composition by using non-metric multidimensional scaling (NMDS). Basal respiration (Bas), metabolic quotient of the microbial community (qCO2), and pine fine root parameters increased toward the ungrazed, nutrient-poor, lichen-dominated sites, which were grouped at one end of the first axis in the NMDS ordination. Soil nutrient and tree growth parameters and thickness of the humus layer increased toward bryophyte-dominated sites, which were grouped at the other end of the first axis in the ordination. The grazed sites fell between them. These were characterized by lower Bas and qCO2 values and longer lag, compared to ungrazed lichen- or bryophyte-dominated sites, probably due to decreased carbon input and microclimatic change (the soil without lichen carpet is exposed to direct sunlight and wind). Microbial biomass (Cmic), fungal biomass (ergosterol concentration), and the specific growth rate (μCO2) were not related to vegetation ordination. The high fine root production is the most plausible explanation for the high microbial activities at nutrient-poor, lichen-dominated sites, which produce qualitatively poor and slowly decomposing litter, as fine roots secrete considerable amounts of organic substances. At bryophyte-dominated sites, the higher soil nutrient concentrations and the higher production of easily decomposable substrates are likely to maintain the microbial activities.
Starting Page	328
Ending Page	335
Page Count	8
File Format	PDF
ISSN	00953628
Journal	Microbial Ecology
Volume Number	36
Issue Number	3-4
e-ISSN	1432184X
Language	English
Publisher	Springer-Verlag
Publisher Date	1998-11-01
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article
Subject	Soil Science Ecology Ecology, Evolution, Behavior and Systematics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Species Composition of Saproxylic Fungal Communities on Decaying Logs in the Boreal Forest

Archaeal Communities in Boreal Forest Tree Rhizospheres Respond to Changing Soil Temperatures

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

Non-parallel changes in soil microbial carbon and nitrogen dynamics due to reindeer grazing in northern boreal forests

Ericoid Roots and Mycospheres Govern Plant-Specific Bacterial Communities in Boreal Forest Humus

Spatial patterns of ground vegetation, soil microbial biomass and activity in a mixed spruce-birch stand

Forest Floor Bacterial Community Composition and Catabolic Profiles in Relation to Landscape Features in Québec’s Southern Boreal Forest

Permafrost thaw in boreal peatlands is rapidly altering forest community composition

Comparative Resistance and Resilience of Soil Microbial Communities and Enzyme Activities in Adjacent Native Forest and Agricultural Soils

Vegetation Composition Determines Microbial Activities in a Boreal Forest Soil

Similar Documents

Species Composition of Saproxylic Fungal Communities on Decaying Logs in the Boreal Forest

Archaeal Communities in Boreal Forest Tree Rhizospheres Respond to Changing Soil Temperatures

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

Non-parallel changes in soil microbial carbon and nitrogen dynamics due to reindeer grazing in northern boreal forests

Ericoid Roots and Mycospheres Govern Plant-Specific Bacterial Communities in Boreal Forest Humus

Spatial patterns of ground vegetation, soil microbial biomass and activity in a mixed spruce-birch stand

Forest Floor Bacterial Community Composition and Catabolic Profiles in Relation to Landscape Features in Québec’s Southern Boreal Forest

Permafrost thaw in boreal peatlands is rapidly altering forest community composition

Comparative Resistance and Resilience of Soil Microbial Communities and Enzyme Activities in Adjacent Native Forest and Agricultural Soils

Vegetation Composition Determines Microbial Activities in a Boreal Forest Soil