Aridity creates global thresholds in soil nitrogen retention and availability

AS Elrys, MF Abo El‐Maati, X Dan, YH Wen… - Global change …, 2024 - Wiley Online Library
Identifying tipping points in the relationship between aridity and gross nitrogen (N) cycling
rates could show critical vulnerabilities of terrestrial ecosystems to climate change. Yet, the …

[HTML][HTML] Soil microbial resource limitation along a subarctic ecotone from birch forest to tundra heath

M Neurauter, M Yuan, LC Hicks, J Rousk - Soil Biology and Biochemistry, 2023 - Elsevier
Soil microorganisms regulate the decomposition of organic matter. However, microbial
activities can also be rate-limited by the resource in lowest supply. Arctic ecosystems are …

Decreased soil microbial nitrogen under vegetation 'shrubification'in the subArctic forest–tundra ecotone: the potential role of increasing nutrient competition between …

S Stark, M Kumar, E Myrsky, J Vuorinen, AM Kantola… - Ecosystems, 2023 - Springer
The consequences of warming-induced 'shrubification'on Arctic soil carbon storage are
receiving increased attention, as the majority of ecosystem carbon in these systems is stored …

[HTML][HTML] Testing the environmental controls of microbial nitrogen-mining induced by semi-continuous labile carbon additions in the subarctic

M Na, M Yuan, LC Hicks, J Rousk - Soil Biology and Biochemistry, 2022 - Elsevier
Climate warming and shrubification will affect soil carbon (C) cycling in arctic ecosystems.
Rhizosphere inputs from increased plant productivity by shrubification may stimulate the …

Highlighting the role of biota in feedback loops from tundra ecosystems to the atmosphere

NM Schmidt, IC Barrio, JA Kristensen… - Frontiers in …, 2024 - frontiersin.org
The rapid climatic and environmental changes observed in the Arctic and across the globe
in general call for reliable model projections. In recent years our understanding of ongoing …

Positive soil priming effects are the rule at a global scale

S Xu, M Delgado‐Baquerizo, Y Kuzyakov… - Global Change …, 2024 - Wiley Online Library
Priming effects of soil organic matter decomposition are critical to determine carbon budget
and turnover in soil. Yet, the overall direction and intensity of soil priming remains under …

Changes in above-versus belowground biomass distribution in permafrost regions in response to climate warming

H Yun, P Ciais, Q Zhu, D Chen… - Proceedings of the …, 2024 - National Acad Sciences
Permafrost regions contain approximately half of the carbon stored in land ecosystems and
have warmed at least twice as much as any other biome. This warming has influenced …

[HTML][HTML] Indirect effects of climate change inhibit N2 fixation associated with the feathermoss Hylocomium splendens in subarctic tundra

DO Alvarenga, K Rousk - Science of the Total Environment, 2021 - Elsevier
Mosses can be responsible for up to 100% of net primary production in arctic and subarctic
tundra, and their associations with diazotrophic cyanobacteria have an important role in …

[HTML][HTML] Will a legacy of enhanced resource availability accelerate the soil microbial response to future climate change?

M Yuan, M Na, LC Hicks, J Rousk - Soil Biology and Biochemistry, 2022 - Elsevier
Soil microorganisms play an integral role in the regulation of carbon (C) cycling. In high-
latitude ecosystems, climate warming is leading to higher plant productivity, shrub …

Herbivores influence biogeochemical processes by altering litter quality and quantity in a subarctic wetland

T Saunders, J Adkins, KH Beard, TB Atwood… - Biogeochemistry, 2023 - Springer
Global change drivers that modify the quality and quantity of litter inputs to soil affect
greenhouse gas fluxes, and thereby constitute a feedback to climate change. Carbon cycling …