NDLI: DOC and N2O dynamics in upland and peatland forest soils after clear-cutting and soil preparation

Content Provider	Springer Nature Link
Author	Saari, Päivi Saarnio, Sanna Kukkonen, Jussi V. K. Akkanen, Jarkko Heinen, Jaakko Saari, Veli Alm, Jukka
Copyright Year	2009
Abstract	Forest clear-cutting followed by soil preparation means disturbance for soil microorganisms and disruption of N and C cycles. We measured fluxes of N2O and dissolved organic carbon (DOC) in upland soil (podzol) and adjacent peat within a clear-cut forest catchment. Both soil types behaved in a similar way, showing net uptake of N2O in the first year after the clear-cutting, and turning to net release in the second. The N2O flux dynamics were similar to those of N content in logging residues, as reported from a nearby site. As organic matter is used in the food web of the decomposers, we attempted to explain the dynamics of N2O uptake and release by measuring the concurrent dynamics of the low molecular weight (LMW) fraction and the aromaticity of DOC in a soil solution. The labile and most readily available LMW fractions of DOC were nearly absent in the year following the clear-cutting, but rose after two years. The more refractory high molecular weight (HMW) fraction of DOC decreased two years after the clear-cutting. The first year’s net uptake of N2O could be accounted for by the growth of decomposer biomass in the logging residues and detritus from the degenerating ground vegetation, resulting in immobilization of nitrogen. Simultaneously, the labile, LMW fraction of DOC became almost completely exhausted. The low availability of the LMW fraction could retard the growth and cause the accumulated decomposer biomass to collapse. During the following winter and summer the fraction of LMW clearly increased, followed by increased N2O emissions. The presence of LMW DOC fractions, not the concentration of DOC, seems to be an important controller for N2O liberation after a major disturbance such as clear-cutting and site preparation. The complex connection between DOC characteristics, nitrification or denitrification merits further studies.
Starting Page	217
Ending Page	231
Page Count	15
File Format	PDF
ISSN	01682563
Journal	Biogeochemistry
Volume Number	94
Issue Number	3
e-ISSN	1573515X
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-04-16
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Dissolved organic carbon DOC Nitrous oxide N2O Forestry Clear-cutting Life Sciences Ecosystems Environmental Chemistry Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Earth-Surface Processes Environmental Chemistry Water Science and Technology

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

DOC and N2O dynamics in upland and peatland forest soils after clear-cutting and soil preparation

Afforestation does not necessarily reduce nitrous oxide emissions from managed boreal peat soils

Dissolved organic carbon chemistry and dynamics in contrasting forest and grassland soils

Total mercury and methylmercury dynamics in upland–peatland watersheds during snowmelt

Fluorescence characteristics and biodegradability of dissolved organic matter in forest and wetland soils from coastal temperate watersheds in southeast Alaska

Dynamics of dissolved organic 14C in throughfall and soil solution of a Norway spruce forest

Nitrous oxide emissions from drained organic forest soils––an up-scaling based on C:N ratios

Seasonal variation of DOC concentration and annual loss of DOC from an Atlantic blanket bog in South Western Ireland

N2O and NOx emissions by reactions of nitrite with soil organic matter of a Norway spruce forest

DOC and N2O dynamics in upland and peatland forest soils after clear-cutting and soil preparation

Similar Documents

DOC and N2O dynamics in upland and peatland forest soils after clear-cutting and soil preparation

Afforestation does not necessarily reduce nitrous oxide emissions from managed boreal peat soils

Dissolved organic carbon chemistry and dynamics in contrasting forest and grassland soils

Total mercury and methylmercury dynamics in upland–peatland watersheds during snowmelt

Fluorescence characteristics and biodegradability of dissolved organic matter in forest and wetland soils from coastal temperate watersheds in southeast Alaska

Dynamics of dissolved organic 14C in throughfall and soil solution of a Norway spruce forest

Nitrous oxide emissions from drained organic forest soils––an up-scaling based on C:N ratios

Seasonal variation of DOC concentration and annual loss of DOC from an Atlantic blanket bog in South Western Ireland

N2O and NOx emissions by reactions of nitrite with soil organic matter of a Norway spruce forest

DOC and N2O dynamics in upland and peatland forest soils after clear-cutting and soil preparation