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Nitrous oxide (N2O) is the most important stratospheric ozone-depleting agent based on current emissions and the third largest contributor to increased net radiative forcing. Increases in atmospheric N2O have been attributed primarily to enhanced soil N2O emissions. Critically, contributions from soils in the Northern High Latitudes (NHL, >50°N) remain poorly quantified despite their exposure to r
Forestation is expected to play an significant role as a terrestrial carbon dioxide removal technology in low-emission scenarios by storing carbon in the biosphere, thereby changing the physical properties of the land surface. To represent land use change, including afforestation and reforestation (AR), Earth system models (ESM) that contribute to the Coupled Model Intercomparison Project Phase 6
Nitrogen (N) transformation processes by soil microbes account for significant nitrous oxide (N2O) emissions from natural ecosystems and cropland. However, understanding and quantifying global soil N2O emissions and their responses to changing environmental conditions remain challenging. Here, we implemented a soil nitrification–denitrification module into the dynamic vegetation model LPJ-GUESS to
Vegetation demographic models (VDMs) are advanced tools for simulating forest responses to climate and land-use changes, and are essential for projecting carbon cycling and large-scale forest management strategies. Despite their increasing incorporation into Earth System Models, VDMs differ in their demographic assumptions, with no prior quantitative comparison of their performance. We benchmarked
Multiple cropping, the simultaneous cultivation of several crops in space or time, is a global practice essential for intensifying and diversifying agriculture. Despite its substantial impact on environmental and socioeconomic outcomes of farming, multiple cropping is hardly accounted for in assessments of global food production, sustainability, and climate impacts. Such studies, often relying on
Forests play a crucial role in Europe’s strategy for achieving carbon neutrality. Carbon turnover time - the time that carbon spends in the ecosystem - is a fundamental component in determining forest potential to mitigate climate change. However, there is a significant knowledge gap regarding how current and future forest management practices will affect carbon turnover time. This study aims to c
Study Region 103 FLUXNET2015 flux towers distributed across diverse climatic and ecological regions. Study Focus Accurate estimation of evapotranspiration (ET) is critical for understanding regional ecohydrological processes. Physically based models such as the Penman-Monteith-Leuning (PML) model are robust but often constrained by fixed parameterization schemes, while data-driven approaches such
Forests are an important component in the framework of nature-based solutions for mitigating climate change. However, there are still uncertainties about the biogeophysical effects of forest cover changes affecting heat and water fluxes as captured by Earth System Models (ESMs) simulations and observations. In this study, we investigate the differences in the surface temperature response to ideali
Inom EU pågår arbete för att skydda viktiga naturområden bl.a. genom s.k. LIFE projekt (se t.ex. Eldridge m.fl. 2007). Därmed kan EU bidra med ekonomiskt stöd till biotop-vård, t.ex. upprätthållande av betesdriften på strandängarna, vilket bl.a. skedde genom projektet LIFE-BaltCoast (2007 – 2011) (http://www.life-balt-coast.eu/). Natura 2000-om-rådena skall samtidigt göras tillgängliga för turism.
Reconstructions and simulations disagree on whether the Holocene exhibited a long-term cooling or warming signal. Anthropogenic land-use could be an important forcing regionally, but available population-based estimates differ widely. We examine transient Holocene climate model simulations forced with three population-based disturbed-land reconstructions and compare this with a fourth scenario der
Reference pollen data for use in interpreting fossil pollen assemblages may be either collected as surface samples or monitored by means of pollen traps. Surface samples can be obtained from moss polsters or lake-surface sediment, or exceptionally soil, leaf litter, or snow. The advantage of such samples is that a large number can be collected relatively quickly. Within the resulting pollen assemb
High-latitude ecosystems are undergoing rapid climate warming, yet long-term ecological response remain poorly understood due to the scarcity of sustained monitoring records. We analyse a unique 40-year dataset from a subarctic mountain birch ( Betula pubescens ssp. czerepanovii ) ecosystem in northern Fennoscandia, integrating climate, plant reproduction, insect herbivory, phenology, and large he
Droughts have intensified under climate change, threatening ecosystem stability. While rising atmospheric CO2 concentrations may enhance vegetation drought resistance, the net effect remains uncertain amid concurrent warming. Here we combine ecological modeling with multi-source observations to investigate how CO2 and warming jointly regulate vegetation drought responses on the Qinghai-Tibetan Pla
Wildfires pose hazards for humans through fire proximity and smoke exposure, and are expected to pose increasing risks due to climate change. Existing literature has not extensively inquired how wildfires affect short-term mobility as an adaptive response to these events. We use digital trace mobility data from the Spanish Ministry of Transportation to examine how proximity to wildfires and conseq
Reconstructions and simulations disagree on whether the Holocene exhibited a long-term cooling or warming signal. Anthropogenic land-use could be an important forcing regionally, but available population-based estimates differ widely. We examine transient Holocene climate model simulations forced with three population-based disturbed-land reconstructions and compare this with a fourth scenario der
Carbon moves through the atmosphere, through the oceans, onto land, and into ecosystems. This cycling has a large effect on climate – changing geographic patterns of rainfall and the frequency of extreme weather – and is altered as the use of fossil fuels adds carbon to the cycle. The dynamics of this global carbon cycling are largely predicted over broad spatial scales and long periods of time by
The capacity of nutrient-limited forests to enhance carbon (C) sequestration under elevated CO2 (eCO2) remains a critical uncertainty in C cycle modeling. While existing evidence suggests that low phosphorus (P) bioavailability may constrain CO2 fertilization effects on plant growth, the extent to which this limitation modulates ecosystem responses to eCO2 in forests adapted to P-deficient soils r
Online shopping is gradually becoming a daily behavior in people's lives, and advertising marketing methods based on short videos are also playing an increasingly important role in this trend. Different from pictures and texts, it combines sound and picture, is easy to spread, and contains a lot of information, which conforms to people's habit of using fragmented information. In this case,
I dagsläget äger nästan alla vuxna svenskar finansiella instrument. Det är vidare allmänt känt att sparande i finansiella instrument inte är helt riskfritt. För många individer är besparingarna väldigt viktiga, samtidigt som många saknar den kunskap som krävs för att investera i finansiella instrument. Behovet av finansiell rådgivning har därför ökat kraftigt, varför det får anses oroväckande att Almost all Swedish adults own financial instruments. It is well known however that investing in financial instruments is not risk free. Furthermore, these investments are often very important for many individuals, but most people lack the necessary knowledge required to invest in financial instruments. There has therefore been a strong increase in the need for financial advisers. With regard to th
Orbit integration for three different assumed Intermediate-mass Black Hole (IMBH, defined as black holes with mass MBH in the range 100Mo < MBH 104Mo) populations in the Milky Way for 10 Gyr has been performed. Upon collision with molecular clouds in the galactic disc, the relative velocity between both objects has been measured and the luminosity resulting from the gas accretion process onto the
