Takayuki Nakatsubo
Mitsuru Hirota
Ayaka W. Kishimoto-Mo
Noriko Oura
Masaki Uchida
Published: Jan. 1, 2023
Moss tundra with a thick peat layer dominated by bryophytes is one of the most important ecosystems in the High Arctic of Svalbard, but little is known about the carbon dynamics of moss tundra. Here, we estimated the net primary production (NPP) and net ecosystem production (NEP) of moss tundra on Brøggerhalvøya (Brøgger Peninsula) of north-western Svalbard (79°N). The net photosynthetic and respiration rates of the two dominant moss species, Calliergon richardsonii and Tomenthypnum nitens, were measured under laboratory conditions. On the basis of the photosynthetic and respiration characteristics and climatic data, we estimated the cumulative NPP of the dominant …
Mykhailo V. Savenets
Larysa Pysarenko
Svitlana Krakovska
Ivan Parnikoza
Denis Pishniak
Published: Jan. 1, 2023
We describe the main features of LT variability that influence native vascular plants in the Antarctic and examine the relationship between the temperature regime at the micro-level and meteorological conditions at the macro-level. We used a period of over a year, during which 37 specialized mini-loggers recorded LT near vascular plants in the Argentine Islands–Kyiv Peninsula region of the Antarctic Peninsula. Rather than measuring standard air or soil temperature, these loggers detect the temperature near the ground, in the microhabitats that harbour vascular plants. On a daily scale, LT correlates with standard (2-m) air temperature, with the values higher at …
Hanna К. Lappalainen
Nina Zaitseva
Olga Glezer
Mikhail Arshinov
Antti Lauri
Taina Ruuskanen
Vladimir B. Lapshin
Tuukka Petäjä
Joni Kujansuu
Veli-Matti Kerminen
Anatoly Shvidenko
Jaana Bäck
Timo Vesala
Gerrit de Leeuw
Dominick V. Spracklen
Steve R. Arnold
Sirkku Juhola
Heikki Lihavainen
Yrjö Viisanen
Natalia Chubarova
Sergey Chalov
Nikolay Filatov
Andrey Skorokhod
Nikolay Elansky
Egor Dyukarev
Igor Esau
Pertti Hari
Vladimir Kotlyakov
Nikolay Kasimov
Valery Bondur
Gennady Matvienko
Alexander Baklanov
Evgeny Mareev
Yuliya Troitskaya
Aijun Ding
Huadong Guo
Sergej Zilitinkevich
Markku Kulmala
Published: Jan. 1, 2014
The Pan-Eurasian Experiment (PEEX) is a new multidisciplinary, global change research initiative focusing on understanding biosphere-ocean- cryosphere-climate interactions and feedbacks in Arctic and boreal regions in the Northern Eurasian geographical domain. PEEX operates in an integrative way and it aims at solving the major scientific and society relevant guestions in many scales using tools from natural and social sciences and economics. The research agenda identifies the most urgent large scale research guestions and topics of the landatmosphere-aquatic-anthropogenic systems and interactions and feedbacks between the systems for the next decades. Furthermore PEEX actively develops and designs a coordinated and coherent ground …
Marina О. Leibman
Alexander I. Kizyakov
Andrei V. Plekhanov
Irina D. Streletskaya
Published: Jan. 1, 2014
This paper is based on field data obtained during short visits to a newly formed permafrost feature in a form of relatively narrow, deep crater. Excluding impossible and improbable versions of the crater's development, the authors conclude that it originated from warmer ground temperatures and an increase in unfrozen water content, leading to an increase in pressure from gas emissions from permafrost and ground ice. This conclusion is also supported by known processes in the palaeo-geography of Yamal lakes and recent studies of gas-hydrate behavior and subsea processes in gas-bearing provinces.