A5054066390- Plant Water Relations and Carbon Dynamics
- Ecology and Vegetation Dynamics Studies
- Tree-ring climate responses
- Forest ecology and management
- Soil Carbon and Nitrogen Dynamics
- Soil erosion and sediment transport
- Botany and Plant Ecology Studies
- Plant and animal studies
- Geology and Paleoclimatology Research
- Forest Management and Policy
- Plant responses to elevated CO2
- Economic and Environmental Valuation
- Landslides and related hazards
- Fire effects on ecosystems
- Biocrusts and Microbial Ecology
- Bioenergy crop production and management
- Plant Stress Responses and Tolerance
- Remote Sensing and LiDAR Applications
- Tree Root and Stability Studies
- Bach Studies and Logistics Development
- Ecology and Conservation Studies
- Soil and Unsaturated Flow
- Agronomic Practices and Intercropping Systems
- Hydrology and Sediment Transport Processes
- Plant Ecology and Soil Science
University of Freiburg
2018-2025
Universität Hamburg
2017
University of Göttingen
2009-2012
University of Illinois Chicago
2011
Unprecedented tree dieback across Central Europe caused by recent global change-type drought events highlights the need for a better mechanistic understanding of drought-induced mortality. Although numerous physiological risk factors have been identified, importance two principal mechanisms, hydraulic failure and carbon starvation, is still debated. It further remains largely unresolved how local neighborhood composition affects individual mortality risk. We studied 9435 young trees 12...
Climate change is increasing the frequency and severity of short-term (~1 y) drought events—the most common duration drought—globally. Yet impact this intensification on ecosystem functioning remains poorly resolved. This due in part to widely disparate approaches ecologists have employed study drought, variation studied, differences among ecosystems vegetation, edaphic climatic attributes that can mediate impacts. To overcome these problems better identify factors modulate responses, we...
Abstract Plant diversity effects on community productivity often increase over time. Whether the strengthening of is caused by temporal shifts in species-level overyielding (i.e., higher diverse communities compared with monocultures) remains unclear. Here, using data from 65 grassland and forest biodiversity experiments, we show that strength at scale underpinned changes species yield. These trends are shaped plant ecological strategies, which can be quantitatively delimited functional...
Abstract Droughts can strongly affect grassland productivity and biodiversity, but responses differ widely. Nutrient availability may be a critical factor explaining this variation, is often ignored in analyses of drought responses. Here, we used standardized nutrient addition experiment covering 10 European grasslands to test if full‐factorial nitrogen, phosphorus, potassium affected plant community inter‐annual variation stress the extreme summer 2018 Europe. We found that amplified...
ABSTRACT International commitments advocate large‐scale forest restoration as a nature‐based solution to climate change mitigation through carbon (C) sequestration. Mounting evidence suggests that mixed compared monospecific planted forests may sequester more C, exhibit lower susceptibility extremes and offer broader range of ecosystem services. However, experimental studies comprehensively examining the control tree diversity on multiple C stocks fluxes above‐ belowground are lacking. To...
Variations in crown forms promote canopy space-use and productivity mixed-species forests. However, we have a limited understanding on how this response is mediated by changes within-tree biomass allocation. Here, explored the role of tree allometry, allocation architecture shaping diversity-productivity relationships (DPRs) oldest tropical diversity experiment. We conducted whole-tree destructive measurements terrestrial laser scanning. Spatially explicit models were built at level to...
Sight-based field measurements of tree crown projection area and canopy height are common praxis in forest science but difficult to validate. We quantified their measurement errors based on the virtual representation an 11-species old-growth provided by high-resolution terrestrial LIDAR (light detection ranging) measurements. Based expectations (a) that violations triangulation theory main error source measurements, (b) approximations crowns with fixed angles not flexible enough for...
Investigating changes in belowground functional plant traits is an important step toward a better understanding of vegetation dynamics during primary succession. However, alpine glacier forelands, we still lack accurate assessment rooting patterns. In this study, established two proglacial chronosequences with contrasting bedrocks to investigate patterns and biomass allocation terrain age. We extracted soil cores up 1 m depth measured root every 10 cm each drilled core. Furthermore, sampled...
Abstract Aims The stability of hillslopes is an essential ecosystem service, especially in alpine regions with soils prone to erosion. One key variable controlling hillslope soil aggregate stability. We aimed at identifying dominant controls vegetation parameters on and analysed their importance for during landscape development. Methods quantified the coefficient (ASC) measured plant cover, diversity, root mass length, density (RMD, RLD) along two chronosequences contrasting bedrocks...
Abstract Questions Primary plant succession is expected to be driven by habitat filtering and competitive exclusion. However, such findings typically come from experimental or single‐site case studies. As a result, we lack field studies that investigate the functional community structures across successional series with differing site conditions. Here, address following question: how do trait patterns diversity change along two chronosequences distinct bedrocks? Methods We established soil...
Abstract Key message Patterns of non-structural carbohydrate allocation in dry and wet differ between birch larch southern boreal forest. An increasing area forests is currently switching from temperature to drought limitation. It not sufficiently known how the trees’ (NSC) pools are affected by alternating phases drought-prone NSC concentrations related growth responses. In Mongolia, (including soluble sugars starch) were determined enzymatically stemwood two tree species during a year...
International commitments advocate large-scale forest restoration as a nature-based solution to climate change mitigation through carbon (C) sequestration. Mounting evidence suggests that mixed compared monospecific planted forests may sequester more C, exhibit lower susceptibility extremes and offer broader range of ecosystem services. However, experimental studies comprehensively examining the control tree diversity on multiple C stocks fluxes above- belowground are lacking. To address...
Recent droughts have strongly impacted forest ecosystems and are projected to increase in frequency, intensity, duration the future together with continued warming. While evidence suggests that tree diversity can regulate drought impacts natural forests, few studies examine whether mixed plantations more resistant of severe droughts. Using variations leaf carbon (C) nitrogen (N) isotopic ratios, is δ13C δ15N, as proxies for response, we analyzed effects species richness on functional...
Abstract An extreme summer drought caused unprecedented tree dieback across Central Europe in 2018, highlighting the need for a better mechanistic understanding of drought-induced mortality. While numerous physiological risk factors have been identified, principal mechanisms, hydraulic failure and carbon starvation, are still debated. We studied 9,435 trees from 12 temperate species planted diversity experiment 2013 to assess how traits, dynamics, pest infestation, height neighbourhood...