A5036091889- Soil Carbon and Nitrogen Dynamics
- Peatlands and Wetlands Ecology
- Ecology and Vegetation Dynamics Studies
- Microbial Community Ecology and Physiology
- Forest Ecology and Biodiversity Studies
- Plant Water Relations and Carbon Dynamics
- Mycorrhizal Fungi and Plant Interactions
- Tree-ring climate responses
- Land Use and Ecosystem Services
- Soil and Water Nutrient Dynamics
- Plant and animal studies
- Geology and Paleoclimatology Research
- Polar Research and Ecology
- Plant nutrient uptake and metabolism
- Plant responses to elevated CO2
- Lichen and fungal ecology
- Species Distribution and Climate Change
- Plant Ecology and Soil Science
- Forest ecology and management
- Forest Management and Policy
- Conservation, Biodiversity, and Resource Management
- Genomics and Phylogenetic Studies
- Tree Root and Stability Studies
- Soil and Unsaturated Flow
- Atmospheric and Environmental Gas Dynamics
Helmholtz Centre for Environmental Research
2023-2024
ETH Zurich
2020-2023
Max Planck Institute for Biogeochemistry
2013-2022
Universidad de Zaragoza
2022
University of Zurich
2018-2021
Swiss Federal Institute for Forest, Snow and Landscape Research
2016-2018
Max Planck Society
2013-2015
University of Potsdam
2013
University of Bern
2013
Abstract Global change, especially land‐use intensification, affects human well‐being by impacting the delivery of multiple ecosystem services (multifunctionality). However, whether biodiversity loss is a major component global change effects on multifunctionality in real‐world ecosystems, as experimental ones, remains unclear. Therefore, we assessed biodiversity, functional composition and 14 150 agricultural grasslands differing intensity. We also introduce five measures which were...
Significance Ecosystem services derive from ecosystem functions and rely on complex interactions among a diversity of organisms. By understanding the relationships between biodiversity, functions, humans receive nature, we can anticipate how changes in land use will affect ecosystems human wellbeing. We show that increasing land-use intensity homogenizes synergies three organizational levels ecosystem, namely, services. Increasing keystone components, which are important for functioning...
Trade-offs and synergies in the supply of forest ecosystem services are common but drivers these relationships poorly understood. To guide management that seeks to promote multiple services, we investigated between 12 stand-level attributes, including structure, composition, heterogeneity plant diversity, plus 4 environmental factors, proxies for 14 150 temperate plots. Our results show attributes best predictors most also good several trade-offs services. Environmental factors play an...
Abstract Organismal functional strategies form a continuum from slow- to fast-growing organisms, in response common drivers such as resource availability and disturbance. However, whether there is synchronisation of these at the entire community level unclear. Here, we combine trait data for >2800 above- belowground taxa 14 trophic guilds spanning disturbance gradient German grasslands. The results indicate that most consistently respond through both direct trophically mediated effects,...
Fine root decomposition contributes significantly to element cycling in terrestrial ecosystems. However, studies on rates and the factors that potentially influence them are fewer than those leaf litter decomposition. To study effects of region land use intensity fine decomposition, we established a large scale three German regions with different climate regimes soil properties. Methods In 150 forest grassland sites deployed litterbags (100 μm mesh size) standardized consisting roots from...
Species diversity promotes the delivery of multiple ecosystem functions (multifunctionality). However, relative functional importance rare and common species in driving biodiversity–multifunctionality relationship remains unknown. We studied between (according to their local abundances across nine different trophic groups), multifunctionality indices derived from 14 on 150 grasslands a land-use intensity (LUI) gradient. The above- below-ground had opposite effects, with above-ground being...
An improved identification of the environmental variables that can be used to predict content soil organic carbon (SOC) stored belowground is required reduce uncertainties in estimating response largest terrestrial reservoir change. Recent studies indicate some metal cations have an active role stabilization SOC, primarily by coordinating interaction between minerals and matter through cation bridging creating complexes with molecules when their hydration shells are displaced. The effective...
Increasing global temperatures have the potential to stimulate decomposition and alter composition of soil organic matter (SOM). However, questions remain about extent which SOM quality quantity along profile may change under future warming. In this study we assessed how +4 °C whole-soil warming affected down 90 cm depth in a mixed-coniferous temperate forest using biomarker analyses. Our findings indicate that 4.5 years led divergent responses subsoils (>20 cm) as compared surface soils....
Summary Increased CO 2 emissions and global warming may alter the composition of fungal communities through removal temperature limitation in plant–soil system, faster nitrogen (N) cycling changes carbon (C) allocation host plants to rhizosphere. At a Swiss treeline featuring Larix decidua Pinus uncinata , effects multiple years enrichment experimental soil on community organic horizons were analysed using 454‐pyrosequencing ITS amplicons. Sporocarp production colonization ectomycorrhizal...
Fine roots support the water and nutrient demands of plants supply carbon to soils. Quantifying turnover times fine is crucial for modeling soil organic matter dynamics constraining cycle-climate feedbacks. Here we challenge widely used isotope-based estimates suggesting trees be as slow a decade. By recording annual growth rings from woody plant species, show that mean chronological ages vary <1 12 years in temperate, boreal sub-arctic forests. Radiocarbon dating reveals same constructed 10...
Abstract Rapid growth of the world's human population has increased pressure on landscapes to deliver high levels multiple ecosystem services, including food and fibre production, carbon storage, biodiversity conservation, recreation. However, we currently lack general principles describing how achieve this landscape multifunctionality. We combine theoretical simulations empirical data 14 services measured across 150 grasslands in three German regions. In doing so, investigate circumstances...
The soil microbiome is crucial for regulating biogeochemical processes and can, thus, strongly influence tree health, especially under stress conditions. However, little known about the effect of prolonged water deficit on microbial communities during development saplings. We assessed response prokaryotic fungal to different levels experimental limitation in mesocosms with Scots pine combined analyses physicochemical properties growth DNA metabarcoding throughout four seasons. Seasonal...
Fine root lifespan is a critical trait associated with contrasting strategies of resource acquisition and protection. Yet, its position within the multidimensional "root economics space" synthesizing global largely uncertain, it rarely represented in frameworks integrating plant variations. Here, we compiled most comprehensive dataset absorptive median (MRL) data including 98 observations from 79 woody species using (mini-)rhizotrons across 40 sites linked MRL to other traits address...
Abstract. Fine roots are the most dynamic portion of a plant's root system and major source soil organic matter. By altering plant species diversity composition, conditions nutrient availability, consequently belowground allocation dynamics carbon (C) inputs, land-use management changes may influence C storage in terrestrial ecosystems. In three German regions, we measured fine radiocarbon (14C) content to estimate mean time since tissues was fixed from atmosphere 54 grassland forest plots...
Acidobacteria occur in a large variety of ecosystems worldwide and are particularly abundant highly diverse soils. In spite their diversity, only few species have been characterized to date which makes one the most poorly understood phyla among domain Bacteria. We used culture-independent niche modeling approach elucidate ecological adaptations evolution for 4,154 operational taxonomic units (OTUs) across 150 different, comprehensively grassland soils Germany. Using relative abundances 16S...
Abstract Background Forests perform various important ecosystem functions that contribute to services. In many parts of the world, forest management has shifted from a focus on timber production multi-purpose forestry, combining with supply other However, it is unclear which types provide services and what extent forests primarily managed for already multiple Based comprehensive dataset collected across 150 plots in three regions differing intensity species composition, we develop models...
More frequent and intense episodes of drought are expected to affect terrestrial nitrogen (N) cycling by altering N transformation rates, the functioning soil microorganisms, plant uptake. However, there is limited empirical evidence how progressive water loss affects processes at plant-soil interface. In this study, we addressed challenge employing 15N tracing techniques, metagenomic analyses microbial genes involved in cycling. Our goal was assess different levels availability influence...
Abstract Reductions in soil moisture due to prolonged episodes of drought can potentially affect whole forest ecosystems, including microorganisms and their functions. We investigated how the composition microbial communities is affected by water limitation. In a mesocosm experiment with Scots pine saplings natural maintained at different levels content over 2 years, we assessed shifts prokaryotic fungal related these changes plant development properties. Prolonged limitation induced...
We used bomb-radiocarbon and raw minirhizotron lifetimes of fine roots (< 0.5 mm in diameter) the organic layer Norway spruce (Picea abies) forests southern Sweden to test if different models are able reconcile apparently contradicting turnover time estimates from both techniques. present a framework based on survival functions that is jointly model data. At same we integrate prior knowledge about biases techniques--the classification dead minirhizotrons use carbon reserves grow new roots....