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Guntars Martinson

@gomartinson.bsky.social

180 followers 280 following 49 posts

Senior scientist and lecturer; Forest/Tree Management and Soil Science; Dad of 3; Craftsman; @unigoettingen @ForestTraceGasLab

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Guntars Martinson @gomartinson.bsky.social · Jun 27

www.nature.com/articles/s41...

Resilience under prolonged drought - Nature Plants

Nature Plants - Resilience under prolonged drought

Guntars Martinson @gomartinson.bsky.social · Jun 27

www.nature.com/articles/s44...

Climate science and the case of the missing moisture - Nature Water

Expected air moisture is missing over drier areas worldwide, possibly because climate models undervalue the effects of plants and other life. This finding could be a fingerprint of human-caused land d...

Guntars Martinson @gomartinson.bsky.social · Jun 27

www.nature.com/articles/s43...

Large biases in the frequency of water limitation across Earth system models - Communications Earth & Environment

CMIP6 Earth system models overestimate the frequency of water-limited conditions on land, by about 14% globally and 26% in the tropics, according to analyses using solar-induced fluorescence, satellit...

Guntars Martinson @gomartinson.bsky.social · Jun 8

onlinelibrary.wiley.com/doi/10.1111/...

Long‐Term Atmospheric Nitrogen Deposition Enhances Forest Production by Suppressing Microbial Competition for Phosphorus

Ecological stoichiometry predicts that long-term nitrogen (N) deposition intensifies phosphorus (P) limitation, yet this remains untested in canopy N addition (CN) experiments that consider critical ...

onlinelibrary.wiley.com

Guntars Martinson @gomartinson.bsky.social · Jun 6

www.nature.com/articles/s44...

Impacts of land use change on nutrient balance and greenhouse gas emissions: a regional perspective - npj Sustainable Agriculture

npj Sustainable Agriculture - Impacts of land use change on nutrient balance and greenhouse gas emissions: a regional perspective

Guntars Martinson @gomartinson.bsky.social · Jun 6

link.springer.com/article/10.1...

Contrasting effects of above and belowground litter inputs in shaping the soil microbiome worldwide - Plant and Soil

Background and aims Microbes are the primary decomposers of litter, yet how above and belowground litter inputs contribute to soil microbial structure and function remains unclear across global enviro...

link.springer.com

Guntars Martinson @gomartinson.bsky.social · Jun 5

www.sciencedirect.com/science/arti...

Ranked growth response to drought for 14 tree species in a temperate forested landscape in Austria

Globally, forests are increasingly at risk from more frequent droughts, threatening their composition, structure, and functioning. However, growth res…

www.sciencedirect.com

Guntars Martinson @gomartinson.bsky.social · Jun 5

academic.oup.com/treephys/adv...

Unveiling the integration of above and below-ground tree carbon-hydraulic traits in Amazonian trees across hydrological niches

Abstract. Understanding trait coordination and trade-offs along the root-to-leaf hydraulic pathway is critical for assessing forest functioning, as these t

academic.oup.com

Guntars Martinson @gomartinson.bsky.social · Jun 5

www.nature.com/articles/s41...

Warming accelerates global drought severity - Nature

Increased atmospheric evaporative demand in recent years has increased drought severity by an average of 40% globally across both dry and wet regions, and the trend is likely to continue under future ...

Guntars Martinson @gomartinson.bsky.social · Jun 2

www.nature.com/articles/s41...

Large live biomass carbon losses from droughts in the northern temperate ecosystems during 2016-2022 - Nature Communications

Drought, fires, and human activities have reversed the accumulation of live biomass carbon in the Northern Hemisphere, with total biomass shifting from a positive to a negative trend around 2016.

Guntars Martinson @gomartinson.bsky.social · May 31

onlinelibrary.wiley.com/doi/10.1111/...

Links Between Nitrogen Limitation and Saturation in Terrestrial Ecosystems

Nitrogen (N) limitation and N saturation are two fundamental concepts, but their ecological links remain unclarified for a long time. We propose a conceptual model on the sequential responses of soil....

onlinelibrary.wiley.com

Guntars Martinson @gomartinson.bsky.social · May 30

www.nature.com/articles/s43...

Increasing soil respiration in a northern hardwood forest indicates symptoms of a changing carbon cycle - Communications Earth & Environment

Soil respiration rates have almost doubled between 2015-2020 with increased heterotrophic microbial carbon mineralization and microbial biomass, suggesting an increase in the bioavailability of organi...

Guntars Martinson @gomartinson.bsky.social · May 28

www.nature.com/articles/s43...

Land use and mineral type determine stability of newly formed mineral-associated organic matter - Communications Earth & Environment

Both quantity of organic carbon available to microorganisms and presence of available nutrients control the decomposition of newly formed mineral-associated organic matter, according to a study exposi...

Guntars Martinson @gomartinson.bsky.social · May 27

www.sciencedirect.com/science/arti...

Nitrogen deposition controls intrinsic water-use efficiency in Fagus sylvatica regeneration more tightly than climate

Intrinsic water-use efficiency (WUEi) is an important parameter quantifying the tree’s ability to maintain the balance between transpiration and photo…

www.sciencedirect.com

Guntars Martinson @gomartinson.bsky.social · May 5

doi.org/10.5194/soil...

Missing the input: the underrepresentation of plant physiology in global soil carbon research

Abstract. Plant processes regulating the quantity and quality of soil organic carbon inputs such as photosynthesis, above- and below-ground plant growth, and root exudation are integral to our underst...

Guntars Martinson @gomartinson.bsky.social · May 2

academic.oup.com/jpe/advance-...

A meta-analysis of warming and precipitation change effects on soil nitrogen cycles

Abstract. Global warming and altered precipitation regimes may profoundly affect soil nitrogen (N) transformations. However, a comprehensive understanding

academic.oup.com

Guntars Martinson @gomartinson.bsky.social · Apr 30

nph.onlinelibrary.wiley.com/doi/10.1111/...

Tree root nutrient uptake kinetics vary with nutrient availability, environmental conditions, and root traits: a global analysis

Root nutrient uptake by trees is a critical process that couples carbon and nutrient cycling in forest ecosystems. Yet, root nutrient uptake traits are poorly constrained, and the dynamics of this p...

nph.onlinelibrary.wiley.com

Guntars Martinson @gomartinson.bsky.social · Mar 15

www.nature.com/articles/s41...

Temperature rising - Nature Geoscience

A record-breaking start to 2025 extends the recent period of exceptional warmth and raises questions over the rate of ongoing climate change.

Guntars Martinson @gomartinson.bsky.social · Mar 15

link.springer.com/article/10.1...

Does atmospheric nitrogen deposition cause critical nutrient imbalances in temperate tree regeneration? - Trees

Key message Nitrogen deposition and precipitation analyzed along independent gradients did not cause major foliar nutrient imbalances that affected tree health in temperate tree regeneration of Fagus ...

link.springer.com

Guntars Martinson @gomartinson.bsky.social · Mar 1

www.science.org/doi/10.1126/...

Assessing soil health with underpants

www.science.org

Guntars Martinson @gomartinson.bsky.social · Feb 27

onlinelibrary.wiley.com/doi/10.1111/...

Whole‐Profile Soil Carbon Responses to Concurrent Warming and Precipitation Changes Across Global Biomes

The response of soil organic carbon (SOC) to simultaneous warming and precipitation shifts remains uncertain. Analyzing global SOC data using a novel space-for-change substitution approach, we find t...

onlinelibrary.wiley.com

Guntars Martinson @gomartinson.bsky.social · Feb 27

onlinelibrary.wiley.com/doi/10.1111/...

Tree Diversity Increases Carbon Stocks and Fluxes Above—But Not Belowground in a Tropical Forest Experiment

We examined the potential of mixed-species planted forests compared to monospecific forests to act as a nature-based solution to climate change mitigation through carbon sequestration. By analysing m...

onlinelibrary.wiley.com

Guntars Martinson @gomartinson.bsky.social · Feb 27

esajournals.onlinelibrary.wiley.com/doi/10.1002/...

Phosphorous fertilization and soil pH affect the growth of deciduous trees in a temperate hardwood forest

Forest ecosystems with altered nutrient limitations are a common legacy of acidic deposition in North America. Continued acidic deposition has lowered soil pH and revealed phosphorus (P) limitations ...

esajournals.onlinelibrary.wiley.com

Guntars Martinson @gomartinson.bsky.social · Feb 27

esajournals.onlinelibrary.wiley.com/doi/10.1002/...

Carbon cycling across ecosystem succession in a north temperate forest: Controls and management implications

Despite decades of progress, much remains unknown about successional trajectories of carbon (C) cycling in north temperate forests. Drivers and mechanisms of these changes, including the role of diff...

esajournals.onlinelibrary.wiley.com

Guntars Martinson @gomartinson.bsky.social · Feb 27

www.nature.com/articles/s41...

Carbon dynamics of silvopasture systems in the Northeastern United States - Scientific Reports

Scientific Reports - Carbon dynamics of silvopasture systems in the Northeastern United States