Search: onr:"swepub:oai:lup.lub.lu.se:ba8eca8f-d1d7-4369-9b34-6b3ca4a885ce" >
Simultaneous Measur...
Simultaneous Measurements of Dissolved Organic Carbon and Soil Respiration Reveal Reduced Soil Carbon Loss Under Nitrogen Addition in a Montane Forest
-
- Wang, Tao (author)
- Institute of Mountain Hazards and Environment Chinese Academy of Sciences
-
- Ao, Jing (author)
- University of the Chinese Academy of Sciences,Institute of Mountain Hazards and Environment Chinese Academy of Sciences
-
- Liu, Xinyu (author)
- University of the Chinese Academy of Sciences,Institute of Mountain Hazards and Environment Chinese Academy of Sciences
-
show more...
-
- Peng, Yuanrui (author)
- University of the Chinese Academy of Sciences,Institute of Mountain Hazards and Environment Chinese Academy of Sciences
-
- Op de Beeck, Michiel (author)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Centre for Environmental and Climate Science (CEC),Faculty of Science
-
- Chang, Ruiying (author)
- Institute of Mountain Hazards and Environment Chinese Academy of Sciences
-
show less...
-
(creator_code:org_t)
- 2022
- 2022
- English.
-
In: Journal of Geophysical Research: Biogeosciences. - 2169-8953. ; 127:7
- Related links:
-
http://dx.doi.org/10...
-
show more...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- A major uncertainty in the estimation of soils acting as net carbon (C) sinks or sources stem from the effects of anthropogenic nitrogen (N) input on the balance between plant C input and soil C loss. In contrast to the generally observed increasing pattern of plant C input, the response of soil C loss to increased N deposition remains elusive, largely due to its large temporal variation. Here simultaneous measurements of two major soil C loss pathways, including dissolved organic carbon (DOC) leaching and soil respiration, were conducted for 5 and 3 yr, respectively, to assess the effects of N addition on soil C loss in an N-limited montane forest. The effects were seasonal, depth and N level dependent and the two pathways responded asynchronously to N addition. Significant decreases in DOC concentrations and fluxes in leachates from the organic layer were observed during autumn/winter under a high N addition rate (40 kg N/ha/yr). No significant impact of N addition on DOC concentrations or fluxes was observed for leachates from the mineral soil horizon. Biodegradability was low for DOC from both soil layers and was not consistently influenced by N addition. Soil respiration was significantly decreased under high N addition. Annual soil C loss (estimated by summing DOC leaching from the mineral horizon and soil respiration) showed that N addition reduced soil C loss consistently over years, implying that the forest soil is likely a C sink under excess N deposition, which should be confirmed with longer term monitoring.
Subject headings
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Markvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Soil Science (hsv//eng)
Keyword
- aromaticity of DOC
- biodegradability
- CO
- dissolved organic carbon leaching
- nitrogen deposition
- soil carbon
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database