Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Mahsa Haei"'
Autor:
Javier H. Segura, Mats B. Nilsson, Mahsa Haei, Tobias Sparrman, Jyri-Pekka Mikkola, John Gräsvik, Jürgen Schleucher, Mats G. Öquist
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
High latitude soils can store around 40 % of the Earth’s soil carbon. Here, the authors add 13C-labeled cellulose to frozen mesocosms of boreal forest soils and find that cellulose biopolymers are hydrolysed under frozen conditions and therefore co
Externí odkaz:
https://doaj.org/article/313fa3ce5bdc48bcbc97db9189e645b5
Publikováno v:
Environmental Research Letters, Vol 8, Iss 2, p 024017 (2013)
Boreal forests, characterized by distinct winter seasons, store a large proportion of the global terrestrial carbon (C) pool. We studied summer soil C-dynamics in a boreal forest in northern Sweden using a seven-year experimental manipulation of soil
Externí odkaz:
https://doaj.org/article/6b679d6d4c6c46878e13f70a19aea858
Autor:
Jürgen Schleucher, Javier Segura, Stefan Bertilsson, Mats Nilsson, Tobias Sparrman, Mahsa Haei, Mats G. Öquist, Anna J. Székely
Publikováno v:
Soil Biology and Biochemistry. 135:438-448
Boreal peatlands are key high-latitude ecosystem types and act as a carbon (C) sink storing an estimated 25% of the world's soil C. These environments are currently seeing the most substantial chan ...
Autor:
Mats Nilsson, Björn Erhagen, Ulrik Ilstedt, Mahsa Haei, Mats G. Öquist, Jürgen Schleucher, Tobias Sparrman
Publikováno v:
Plant and Soil. 414:113-125
Background and aims: Mineralization of soil organic matter (SOM) constitutes a major carbon flux to the atmosphere. The carbon use efficiency (CUE) of the saprotrophic microorganisms mineralizing SOM is integral for soil carbon dynamics. Here we inve
Publikováno v:
Biogeosciences, Vol 7, Iss 9, Pp 2901-2913 (2010)
Using a 15 year stream record from a northern boreal catchment, we demonstrate that the inter-annual variation in dissolved organic carbon (DOC) concentrations during snowmelt was related to discharge, winter climate and previous DOC export. A short
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::425446a9cbfea46fc1276c4a45770b76
https://www.biogeosciences.net/7/2901/2010/
https://www.biogeosciences.net/7/2901/2010/
Autor:
Ulrik Ilstedt, Björn Erhagen, Jürgen Schleucher, Mats Nilsson, Mattias Hedenström, Tobias Sparrman, Mahsa Haei, Mats G. Öquist
Publikováno v:
Global Change Biology. 19:3858-3871
The global soil carbon pool is approximately three times larger than the contemporary atmospheric pool, therefore even minor changes to its integrity may have major implications for atmospheric CO2 concentrations. While theory predicts that the chemi
Publikováno v:
Global Change Biology. 18:1895-1903
Changes in winter time conditions at high-latitude ecosystems could severely affect the carbon exchange processes. Using a 15 year stream record combined with winter field measurements and laboratory experiment, we studied the regulation of dissolved
Publikováno v:
Soil Biology and Biochemistry. 43:2069-2077
Most climate change scenarios predict that the variability of weather conditions will increase in coming decades. Hence, the frequency and intensity of freeze-thaw cycles in high-latitude regions are likely to increase, with concomitant effect on soi
Publikováno v:
Oecologia. 168:577-587
Snow regimes affect biogeochemistry of boreal ecosystems and are altered by climate change. The effects on plant communities, however, are largely unexplored despite their influence on relevant processes. Here, the impact of snow cover on understory
Publikováno v:
Biogeochemistry. 107:95-106
Riparian soils exert a major control on stream water dissolved organic carbon (DOC) in northern latitudes. As the winter climate in northern regions is predicted to be particularly affected by climate change, we tested the sensitivity of DOC formatio