Zobrazeno 1 - 10
of 141
pro vyhledávání: '"K.-H. Knorr"'
Publikováno v:
Biogeosciences, Vol 21, Pp 3491-3507 (2024)
Peatland pools are unvegetated, inundated depressions that cover up to 30 % of the surface of many temperate and boreal peatlands and that are net carbon (C) sources within C-accumulating ecosystems. The emission of carbon dioxide (CO2) and methane (
Externí odkaz:
https://doaj.org/article/4a7e37fe8ea343278a3aae13e7d6fda0
Autor:
C. L. Thomas, B. Jansen, S. Czerwiński, M. Gałka, K.-H. Knorr, E. E. van Loon, M. Egli, G. L. B. Wiesenberg
Publikováno v:
Biogeosciences, Vol 20, Pp 4893-4914 (2023)
As peatlands are a major terrestrial sink in the global carbon cycle, gaining an understanding of their development and changes throughout time is essential in order to predict their future carbon budget and potentially mitigate the adverse outcomes
Externí odkaz:
https://doaj.org/article/23f4efc00e114a7180d28c7b808113c6
Publikováno v:
Biogeosciences, Vol 20, Pp 737-751 (2023)
Draining and extracting peat alters the conditions that control CO2 and CH4 emissions. Carbon (C) emissions from peatlands undergoing horticultural peat extraction are not well constrained due to a lack of measurements. We determine the effect that p
Externí odkaz:
https://doaj.org/article/7ba78d2e5fe0484e82b54c100f5ac8be
Autor:
H. Teickner, K.-H. Knorr
Publikováno v:
SOIL, Vol 8, Pp 699-715 (2022)
To understand global soil organic matter (SOM) chemistry and its dynamics, we need tools to efficiently quantify SOM properties, for example, prediction models using mid-infrared spectra. However, the advantages of such models rely on their validity
Externí odkaz:
https://doaj.org/article/2093174532634f83b177a001c5d974fc
Autor:
C. N. Gutekunst, S. Liebner, A.-K. Jenner, K.-H. Knorr, V. Unger, F. Koebsch, E. D. Racasa, S. Yang, M. E. Böttcher, M. Janssen, J. Kallmeyer, D. Otto, I. Schmiedinger, L. Winski, G. Jurasinski
Publikováno v:
Biogeosciences, Vol 19, Pp 3625-3648 (2022)
Rewetted peatlands can be a significant source of methane (CH4), but in coastal ecosystems, input of sulfate-rich seawater could potentially mitigate these emissions. The presence of sulfate as an electron acceptor during organic matter decomposition
Externí odkaz:
https://doaj.org/article/e8700ba45ec3404b97b6cfaf517daa65
Publikováno v:
Biogeosciences, Vol 19, Pp 3051-3071 (2022)
Permafrost thaw in northern peatlands often leads to increased methane (CH4) emissions, but the underlying controls responsible for increased emissions and the duration for which they persist have yet to be fully elucidated. We assessed how shifting
Externí odkaz:
https://doaj.org/article/224eaa698c3a44c5b6b379210ba708fd
Autor:
R. J. Heim, A. Yurtaev, A. Bucharova, W. Heim, V. Kutskir, K.-H. Knorr, C. Lampei, A. Pechkin, D. Schilling, F. Sulkarnaev, N. Hölzel
Publikováno v:
Biogeosciences, Vol 19, Pp 2729-2740 (2022)
Fires are predicted to increase in Arctic regions due to ongoing climate change. Tundra fires can alter carbon and nutrient cycling and release a substantial quantity of greenhouse gases with global consequences. Yet, the long-term effects of tundra
Externí odkaz:
https://doaj.org/article/db352fdd514c4227908078354cf45c60
Publikováno v:
Biogeosciences, Vol 17, Pp 5057-5078 (2020)
Inland waters, particularly small and shallow lakes, are significant sources of carbon dioxide (CO2) and methane (CH4) to the atmosphere. However, the spatial in-lake heterogeneity of CO2 and CH4 production processes and their drivers in the sediment
Externí odkaz:
https://doaj.org/article/d04116d4f4a64d8c8c03fa107814b944
Autor:
W. Knierzinger, R. Drescher-Schneider, K.-H. Knorr, S. Drollinger, A. Limbeck, L. Brunnbauer, F. Horak, D. Festi, M. Wagreich
Publikováno v:
Eiszeitalter und Gegenwart, Vol 69, Pp 121-138 (2020)
Using peat bogs as palaeoenvironmental archives is a well-established practice for reconstructing changing climate and anthropogenic activity in the past. In this paper, we present multi-proxy analyses (element geochemistry, pollen, non-pollen palyno
Externí odkaz:
https://doaj.org/article/79125b66306a407aa8015e822fb9f134
Publikováno v:
Biogeosciences, Vol 16, Pp 541-559 (2019)
Peatlands are significant global methane (CH4) sources, but processes governing CH4 dynamics have been predominantly studied in the Northern Hemisphere. Southern hemispheric and tropical bogs can be dominated by cushion-forming vascular plants (e.g.
Externí odkaz:
https://doaj.org/article/e0bc8f5c4f7f47aaacf7cfec09ed7dcf