Ingo Heinrich
A5031983364- Tree-ring climate responses
- Plant Water Relations and Carbon Dynamics
- Geology and Paleoclimatology Research
- Forest ecology and management
- Tree Root and Stability Studies
- Climate variability and models
- Botany and Plant Ecology Studies
- Hydrology and Watershed Management Studies
- Fire effects on ecosystems
- Climate change and permafrost
- Peatlands and Wetlands Ecology
- Ecology and Vegetation Dynamics Studies
- Landslides and related hazards
- Forest Ecology and Biodiversity Studies
- Lichen and fungal ecology
- Plant Ecology and Soil Science
- Archaeology and ancient environmental studies
- Cryospheric studies and observations
- Plant responses to elevated CO2
- Hydrology and Sediment Transport Processes
- Archaeological Research and Protection
- Soil erosion and sediment transport
- Bryophyte Studies and Records
- Urban Heat Island Mitigation
- Urban Green Space and Health
Deutsches Archäologisches Institut, Zentrale
2021-2025
GFZ Helmholtz Centre for Geosciences
2015-2024
Potsdam Institute for Climate Impact Research
2024
Humboldt-Universität zu Berlin
2016-2023
University of Potsdam
2018
Universität Greifswald
2018
University of Münster
2017
Australian National University
2005-2009
Forschungszentrum Jülich
2008
University of Fribourg
2005-2008
Abstract The increasing carbon dioxide (CO 2 ) concentration in the atmosphere combination with climatic changes throughout last century are likely to have had a profound effect on physiology of trees: altering and water fluxes passing through stomatal pores. However, magnitude spatial patterns such natural forests remain highly uncertain. Here, stable isotope ratios from network 35 tree‐ring sites located across Europe investigated determine intrinsic water‐use efficiency ( iWUE ), ratio...
Abstract Heatwaves exert disproportionately strong and sometimes irreversible impacts on forest ecosystems. These remain poorly understood at the tree species level across large spatial scales. Here, we investigate effects of record-breaking 2018 European heatwave growth water status using a collection high-temporal resolution dendrometer data from 21 53 sites. Relative to two preceding years, annual stem was not consistently reduced by but stems experienced twice temporary shrinkage due...
Abstract. Plant transpiration links physiological responses of vegetation to water supply and demand with hydrological, energy, carbon budgets at the land–atmosphere interface. However, despite being main land evaporative flux global scale, its response environmental drivers are currently not well constrained by observations. Here we introduce first compilation whole-plant data from sap flow measurements (SAPFLUXNET, https://sapfluxnet.creaf.cat/, last access: 8 June 2021). We harmonized...
Summary Trees play a key role in the global hydrological cycle and measurements performed with thermal dissipation method ( TDM ) have been crucial providing whole‐tree water‐use estimates. Yet, different data processing to calculate water use encapsulates uncertainties that not systematically assessed. We quantified conifer sap flux density F d stand caused by commonly applied methods for deriving zero‐flow conditions, dampening sensor calibration. Their contribution has assessed using stem...
Abstract. Past temperature variations are usually inferred from proxy data or estimated using general circulation models. Comparisons between climate estimations derived records and model simulations help to better understand mechanisms driving variations, also offer the possibility identify deficiencies in both approaches. This paper presents regional reconstructions based on tree-ring maximum density series Pyrenees, compares them with output of global for this region conducted target...
Core Ideas TERENO‐NE investigates the regional impact of global change. We facilitate interdisciplinary geo‐ecological research. Our data sets comprise monitoring and geoarchives. are able to bridge time scales from minutes millennia. The Northeast German Lowland Observatory (TERENO‐NE) was established investigate climate land use focuses on lowlands, for which a high vulnerability has been determined due increasing temperatures decreasing amounts precipitation projected coming decades. To...
Tree-ring chronologies of Pinus sylvestris L. from latitudinal and altitudinal limits the species distribution have been widely used for climate reconstructions, but there are many sites within temperate zone, as is case in northeastern Germany, at which little evidence a clear signal chronologies. In this study, we developed long several cell structure variables (e.g., average lumen area wall thickness) P. growing Germany investigated influence on ring widths variables. We found significant...
This paper introduces a new approach-the Principal Component Gradient Analysis (PCGA)-to detect ecological gradients in time-series populations, i.e. several originating from different individuals of population. Detection is particular importance when dealing with heterogeneous populations which express differing trends. PCGA makes use polar coordinates loadings the first two axes obtained by principal component analysis (PCA) to define groups similar Based on mean inter-series correlation...
Observed recent and expected future increases in frequency intensity of climatic extremes central Europe may pose critical challenges for domestic tree species. Continuous dendrometer recordings provide a valuable source information on stem diameter or radius variations, offering the possibility to study tree's response environmental influences at high temporal resolution. In this study, we analyze variations (SRV) three species (beech, oak pine) from 2012 2014. We use novel statistical...
Abstract In forests, the increase in atmospheric CO 2 concentrations ( C a ) has been related to enhanced tree growth and intrinsic water‐use efficiency iWUE ). However, drought‐prone areas such as Mediterranean Basin, it is not yet clear what extent this “fertilizing” effect may compensate for drought‐induced reduction. We investigated physiological responses at five Scots pine Pinus sylvestris L.) sessile oak Quercus petraea (Matt.) Liebl.) sites located their southernmost distribution...
Dendroclimatic proxies can be generated from the analysis of wood cellular structures, allowing for a more complete understanding physiological mechanisms that control climatic response tree species. Century-long (1870-2013) time series anatomical parameters were developed Great Basin bristlecone pine (Pinus longaeva D.K. Bailey) by capturing strongly contrasted microscopic images through Confocal Laser Scanning Microscope. Environmental information embedded in was analyzed comparison with...
Arctic and alpine treelines worldwide differ in their reactions to climate change. A northward advance of or densification within the treeline ecotone will likely influence climate-vegetation feedback mechanisms. In our study, which was conducted Taimyr Depression North Siberian Lowlands, w present a combined field- model-based approach helping us better understand population processes involved responses whole ecotone, spanning from closed forest single-tree tundra, warming. Using...
Atmospheric CO2 (ca ) rise changes the physiology and possibly growth of tropical trees, but these effects are likely modified by climate. Such ca × climate interactions importantly drive fertilization forests predicted global vegetation models, have not been tested empirically. Here we use tree-ring analyses to quantify how has shifted sensitivity tree stem annual fluctuations in rainfall temperature. We hypothesized that reduces drought increases temperature growth, reducing transpiration...
Summary Tropical forests substantially influence the terrestrial carbon sink. Their contributions to forest sink may increase due stimulation of photosynthesis by rising atmospheric CO 2 ( C a ); however, magnitude this effect is poorly quantified for tropical canopy trees. We measured ratio two deuterium isotopomers glucose derived from tree rings estimate how photosynthetic efficiency (photorespiration‐to‐photosynthesis ratio) has responded rise at centennial scale. Wood samples were...
Groundwater dependent forest ecosystems are globally among the most threatened due to high levels of anthropogenic pressure they often experience but also effects ongoing climate change. Access groundwater has been suggested increase productivity and capacity withstand extreme climatic events. However, it is currently unknown how spatially temporally variable access might influence physiological responses different tree species conditions. Here, we analyzed time series sub-hourly sap flow...