Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Jarle W Bjerke"'
Autor:
Eirik A Finne, Jarle W Bjerke, Rasmus Erlandsson, Hans Tømmervik, Frode Stordal, Lena M Tallaksen
Publikováno v:
Environmental Research Letters, Vol 18, Iss 7, p 074038 (2023)
Vegetation has a profound impact on climate through complex interactions and feedback loops, where especially regulation of albedo, the ratio of reflected to incoming solar radiation, is important at high latitudes. How vegetation albedo varies along
Externí odkaz:
https://doaj.org/article/f1f73555c030443eb5b54a6ab560f6b4
Publikováno v:
Environmental Research Letters, Vol 15, Iss 10, p 104084 (2020)
The Arctic is experiencing an increased frequency of extreme events which can cause landscape-scale vegetation damage. Extreme event-driven damage is an important driver of the decline in vegetation productivity (termed ‘Arctic browning’) which h
Externí odkaz:
https://doaj.org/article/58f22689e8354ddfb2ff207e6016ba3b
Autor:
Frans-Jan W Parmentier, Daniel P Rasse, Magnus Lund, Jarle W Bjerke, Bert G Drake, Simon Weldon, Hans Tømmervik, Georg H Hansen
Publikováno v:
Environmental Research Letters, Vol 13, Iss 6, p 065009 (2018)
Extreme winter events that damage vegetation are considered an important climatic cause of arctic browning—a reversal of the greening trend of the region—and possibly reduce the carbon uptake of northern ecosystems. Confirmation of a reduction in
Externí odkaz:
https://doaj.org/article/c888adfbf1ab4fb39d8aa9d8d1ae2548
Publikováno v:
Revista Chilena de Historia Natural, Vol 76, Iss 1, Pp 79-98 (2003)
ABSTRACT The taxonomy and ecology of the sorediate species of Menegazzia from the southernmost regions of Chile and Argentina and the South Atlantic Islands was recently published, only with sporadic reports from the more northern regions. In the pre
Externí odkaz:
https://doaj.org/article/7cacb4f4e174483bbdd07d2c9c8097ba
Publikováno v:
Environmental Research Letters, Vol 11, Iss 12, p 125005 (2016)
The duration and extent of snow cover is expected to change rapidly with climate change. Therefore, there is a need for improved monitoring of snow for the benefit of forecasting, impact assessments and the population at large. Remotely sensed techni
Externí odkaz:
https://doaj.org/article/a04ce14a29cd46e9aa0da91c8bdb2010
Publikováno v:
Environmental Research Letters, Vol 10, Iss 9, p 095007 (2015)
Europe’s and the World’s northernmost agriculture is very vulnerable to harsh overwintering conditions. It is important from both an economic and societal standpoint to have accurate methods of predicting the severity and impact of the current sn
Externí odkaz:
https://doaj.org/article/6af0a7a96dc241dfb9e6a6d4fb1961f4
Autor:
Jarle W Bjerke, Stein Rune Karlsen, Kjell Arild Høgda, Eirik Malnes, Jane U Jepsen, Sarah Lovibond, Dagrun Vikhamar-Schuler, Hans Tømmervik
Publikováno v:
Environmental Research Letters, Vol 9, Iss 8, p 084006 (2014)
The release of cold temperature constraints on photosynthesis has led to increased productivity (greening) in significant parts (32–39%) of the Arctic, but much of the Arctic shows stable (57–64%) or reduced productivity (browning,
Externí odkaz:
https://doaj.org/article/3b8bf3f8bcd34e8f86c0d3ae5053d7d4
Autor:
Bogdan Zagajewski, Marlena Kycko, Hans Tømmervik, Zbigniew Bochenek, Bronisław Wojtuń, Jarle W. Bjerke, Andrzej Kłos
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 87, Iss 4 (2018)
Remote sensing, which is based on a reflected electromagnetic spectrum, offers a wide range of research methods. It allows for the identification of plant properties, e.g., chlorophyll, but a registered signal not only comes from green parts but also
Externí odkaz:
https://doaj.org/article/82dd40af44e04a8387449340f0409e58
Autor:
Stef Bokhorst, Matty P. Berg, Guro K. Edvinsen, Jacintha Ellers, Amber Heitman, Laura Jaakola, Hanne K. Mæhre, Gareth K. Phoenix, Hans Tømmervik, Jarle W. Bjerke
Publikováno v:
Frontiers in Plant Science, Vol 9 (2018)
Climate change is one of many ongoing human-induced environmental changes, but few studies consider interactive effects between multiple anthropogenic disturbances. In coastal sub-arctic heathland, we quantified the impact of a factorial design simul
Externí odkaz:
https://doaj.org/article/94cd6d8779e446cdb875767e078c22ef
Autor:
Stef Bokhorst, Jarle W. Bjerke, Gareth K. Phoenix, Laura Jaakola, Hanne K. Mæhre, Hans Tømmervik
Publikováno v:
Physiologia Plantarum : An International Journal for Plant Biology
e13882
Bokhorst, S, Bjerke, J W, Phoenix, G K, Jaakola, L, Maehre, H K & Tømmervik, H 2023, ' Sub-arctic mosses and lichens show idiosyncratic responses to combinations of winter heatwaves, freezing and nitrogen deposition ', Physiologia Plantarum, vol. 175, no. 2, e13882, pp. e13882 . https://doi.org/10.1111/ppl.13882
Physiologia Plantarum, 175(2):e13882. Wiley-Blackwell
e13882
Bokhorst, S, Bjerke, J W, Phoenix, G K, Jaakola, L, Maehre, H K & Tømmervik, H 2023, ' Sub-arctic mosses and lichens show idiosyncratic responses to combinations of winter heatwaves, freezing and nitrogen deposition ', Physiologia Plantarum, vol. 175, no. 2, e13882, pp. e13882 . https://doi.org/10.1111/ppl.13882
Physiologia Plantarum, 175(2):e13882. Wiley-Blackwell
Arctic ecosystems are increasingly exposed to extreme climatic events throughout the year, which can affect species performance. Cryptogams (bryophytes and lichens) provide important ecosystem services in polar ecosystems but may be physiologically a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c49f10859391f71d201d76861c66ce2d
https://hdl.handle.net/11250/3057869
https://hdl.handle.net/11250/3057869