Robert Jandl

Robert Jandl
Federal Research and Training Centre for Forests, Natural Hazards and Landscape · forest ecology

About

127
Publications
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Introduction

Publications

Publications (127)
Article
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We present the results of a simulation experiment that evaluated three scenarios of forest management in the context of climate change mitigation. Two scenarios refer to climate change adaptation measures. The third scenario was a business-as-usual scenario representing the continuation of current forest management. We wanted to know whether a chan...
Article
Full-text available
Repeated soil surveys provide opportunities to quantify the effect of long-term environmental change. In recent decades, the topics of forest soil acidification as a consequence of acidic deposition, the enrichment of forest ecosystems with nitrogen, and the loss of carbon due to climate change have been discussed. We used two forest soil surveys t...
Article
Full-text available
In Europe, private forest owners play an important role in achieving sustainability goals, such as those set by the European Green Deal. Efficient communication and coordination with these actors is therefore central. However, ongoing structural changes in forest ownership have in many cases silenced traditional communication channels, especially t...
Article
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We compiled information from different sources in order to establish a comprehensive map of the stock of soil organic carbon (SOC) in the upper 30 cm under different forms of land use for Austria. The information serves as a baseline for the evaluation of the potential of climate-change mitigation measures. SOC sequestration plays an important role...
Article
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Question: We compared the soil organic carbon stock of the forests of an entire country. The objective of our research was establishing the differences between coniferous or deciduous forests with respect to soil carbon stocks. The question is relevant because coniferous forests are increasingly damaged by abiotic and biotic disturbances that are r...
Article
Full-text available
Soil bulk density is a required variable for quantifying stocks of elements in soils and is therefore instrumental for the evaluation of land-use related climate change mitigation measures. Our motivation was to derive a set of pedotransfer functions for soil bulk densities usable to accommodate different levels of data availabilities. We derived s...
Article
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Climate change requires forest managers to explore new concepts in reforestation. High-elevation sites are posing challenges because the range of tree species that can cope with present and future conditions is small and limited experience with candidate species is available. Methods: We selected a mountain site with nutrient-poor silicatic soils....
Article
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The current state of research shows that there is big potential for the use of wood, particularly harvested wood products (HWP) to mitigate climate change and increase carbon stocks. Despite of discussions on different accounting approaches, the forest-based sector can contribute with the production of long-lasting wood products to reach internatio...
Method
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This annex cotnains the methodological tools (full questionnaire and semi structured guidelines) to the paper (it is as well publically available under the existing DOI).
Book
Full-text available
The publication is focussed on integration of climate change adaptation measures to sustainable forest management in Europe. It has been prepared and published in the framework of FOREST EUROPE Work Programme 2016–2020. Part I of the publication (policy recommendations) has been developed by the FOREST EUROPE Expert Group on Adaptation of Forests t...
Article
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Almost half of the total organic carbon (C) in terrestrial ecosystems is stored in forest soils. By altering rates of input or release of C from soils, forest management activities can influence soil C stocks in forests. In this review, we synthesize current evidence regarding the influences of 13 common forest management practices on forest soil C...
Article
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A dramatic increase in bark-beetle (Ips typographus) damage in Norway spruce (Picea abies (L.) Karst.) forests occured in the provinces Upper and Lower Austria in the past decade with the beetle outbreak likely driven by climate change. Water shortage in the early growing season appears to weaken the forests. The high supply of beetle-infested timb...
Article
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Key message Climate change is posing a considerable challenge to foresters. The intensity of required adaptive measures and the relevance of old-growth forests as benchmark for managed forests are debated. Forest managers need to make decisions on stand treatment that are based on climatological and biological parameters with high uncertainties. We...
Presentation
ValoFor: Small Forests - Big Players, Valorizing small scale forestry for a bio-based economy. A ForestValue research project.
Article
Full-text available
Context Varying altitudes and aspects within small distances are typically found in mountainous areas. Such a complex topography complicates the accurate quantification of forest C dynamics at larger scales. Objectives We determined the effects of altitude and aspect on forest C cycling in a typical, mountainous catchment in the Northern Limestone...
Book
Full-text available
The respiration of forest soils and the major factors controlling its rate are fairly well understood. The process is of utmost significance because its balance with the fixation of CO2 in the biomass defines whether a particular site is a source or sink of atmospheric CO2. Currently, the measurement of soil respiration in the field requires rather...
Article
Full-text available
We simulated Austrian forests under different sustainable management scenarios. A reference scenario was compared to scenarios focusing on the provision of bioenergy, enhancing the delivery of wood products, and reduced harvesting rates. The standing stock of the stem biomass, carbon in stems, and the soil carbon pool were calculated for the period...
Article
Full-text available
Key message High-elevation forests in the Alps protect infrastructure and human lives against natural hazards such as rockfall, flooding, and avalanches. Routinely performed silvicultural interventions maintain the required stand structure but are not commercially viable in remote forests due to high operational costs. Financial subsidies for the m...
Article
Full-text available
Adaptive Forest Management and Forest Landscape Restoration do not contradict – ecosystem integrityand health are benefits and central goals in both concepts, and thus can beintegrated. The Adaptive Measures concept can be helpful in streamlining and focusing existingconcepts on forest adaptation and restoration as well as to help forest restoratio...
Article
Full-text available
Accurate carbon-balance accounting in forest soils is necessary for the development of climate change policy. However, changes in soil organic carbon (SOC) occur slowly and these changes may not be captured through repeated soil inventories. Simulation models may be used as alternatives to SOC measurement. The Yasso07 model presents a suitable alte...
Article
Full-text available
AimsSlow or failed tree regeneration after forest disturbance is increasingly observed in the central European Alps, potentially amplifying the carbon (C) loss from disturbance. We aimed at quantifying C dynamics of a poorly regenerating disturbance site with a special focus on the role of non-woody ground vegetation. Methods Soil CO2 efflux, fine...
Article
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The Himalayas are predicted to experience more than 3 times the mean global rise in temperature, as well as erratic rainfall patterns and an increased likelihood of total monsoon failures. While many ecosystem manipulation experiments aiming at understanding the effects of altered precipitation, temperature, and carbon dioxide are conducted globall...
Chapter
Forests are covering a substantial part of European mountains. The elongation of the growing season due to climate change and warmer summers are increasing the rate of soil respiration. However, the effect is at some sites partially compensated by droughts. Temperate mountain forests ecosystems are mostly releasing carbon dioxide whereas nitrogen o...
Article
Full-text available
The biogeochemistry of mountain forests in the Hindu Kush Himalaya range is poorly studied, although climate change is expected to disproportionally affect the region. We measured the soil CO2 efflux (Rs) at a high-elevation (3260 m) mixed forest and a lower-elevation (2460 m) broadleaf forest in Bhutan, eastern Himalayas, during 2015. Trenching wa...
Article
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We studied the effect of mountain grassland afforestation with conifer trees (Pinus sylvestris, Picea abies and Pinus cembra) on soil organic matter (SOM) cycling and carbon (C) isotopic composition in two contrasting climate areas using a regional approach. Seventeen paired sites (each containing at least 40 years prior afforested and grassland pl...
Article
Anthropogenic GHG emissions add a fast reinforcing feedback cycle to global carbon dynamics which continues to influence GHG concentrations in the Earth’s atmosphere. When looking at forest carbon cycles there is potential in utilizing another feedback cycle, namely the carbon cycle involving harvested wood products. To assess the potential of the...
Article
Full-text available
The biogeochemistry of mountain forests in the Hindu Kush-Himalaya range is poorly studied although climate change is expected to disproportionally affect the region. We measured the soil CO2 efflux (Rs) at a high elevation (3260 m) coniferous, and a lower elevation (2460 m) broadleaved forest in Bhutan, eastern Himalayas, during 2014 and 2015. Bot...
Article
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Zusammenfassung Die Speicherung des Kohlenstoffs (C) in Grünlandökosystemen ist in Österreich unzureichend untersucht. An drei unterschiedlichen Dauergrünland-Standorten in der Steiermark wurden für sechs repräsentative Vegetationstypen die C-Gehalte in den verschiedenen Kompartimenten des Ökosystems ermittelt, um den gesamten C-Vorrat abschätzen z...
Poster
Full-text available
Soil respiration (Rs) was measured in two mountain forests in Bhutan viz; a cool temperate conifer forest (CF) and a warm temperate broadleaved forest (BF) from July to September 2015. Variations in Rs between the zone close to the stem and inter-stem space were studied. In addition we measured whether Rs differed between different tree species. In...
Article
The compilation of GHG inventories has become a common practice to support environmental decision- and policy-making, for example in the context of the UNFCCC. To estimate GHG emissions, simulation models present viable alternatives to measured data. In order to make an informed decision on model selection, clear information on the purpose and appl...
Technical Report
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Die Holznutzung im österreichischen Wald wirkt sich besonders durch den Effekt der vermiedenen Emissionen von Substitutionsprodukten außerordentlich positiv auf die THG-Bilanz aus. Vorratsänderungen in der Waldbiomasse und im Waldboden spielen eine wichtige Rolle in der THG-Bilanz. Eine kaskadische Holzverwendung, wo immer möglich, ist für die THG-...
Article
In central European mountain forests, bark beetle abatement measures implemented after wind and bark beetle disturbances represent a well-defined disturbance regime. We used a biometric approach extended by soil CO2 efflux measurements to study the effects of disturbance-induced stand patchiness on the net ecosystem productivity (NEP) of a mature N...
Technical Report
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Find report at this link: http://facesmap.boku.ac.at/index.php/library2/doc_download/452-fp1201-country-report-austria
Article
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Adaptation to climate change is a current priority in forest management. Some of the suggested measures aim at maintaining the economic viability of timber production, others at maximizing social benefits, and others are recommended to increase the size of the carbon pool in forests. All of them need to be valid for a broad range of site conditions...
Chapter
A warmer climate with reduced summer precipitation will affect the biomass productivity in Austrian forests. In mountain forests with sufficient precipitation, an extended growing season will lead to productivity increases. In eastern and north-eastern lowlands and in inner-Alpine basins, extended and more frequent drought periods will result in re...
Chapter
We developed a conceptual carbon (C) model for a long-term ecological research forest research site in Achenkirch, Tyrol (Austrian Alps) using STELLA® 10.0. The forest is dominated by Norway spruce (Picea abies L.). The model was built based on field measurements of forest productivity, aboveground litterfall, autotrophic and heterotrophic soil res...
Article
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Tree species composition shifts can alter soil CO2 and N2O effluxes. We quantified the soil CO2 and N2O efflux rates and temperature sensitivity from Pyrenean oak, Scots pine and mixed stands in Central Spain to assess the effects of a potential expansion of oak forests. Soil CO2 and N2O effluxes were measured from topsoil samples by lab incubation...
Chapter
Full-text available
Climate change represents a substantial challenge for the management, use and protection of terrestrial and aquatic ecosystems as well as the sustainable use of the key water resources. Numerous feedbacks exist between agriculture, forestry, and water management sectors as well as the conservation of ecosystems and biodiversity. Almost all options...
Data
Figure S1. Relation between snow depth measurements at Achenkirch village and at the field site. Linear regression (black line) and 1 : 1 line (red).
Data
Figure S2. Comparison of snow probe and chamber technique at low snow depth. Measurements were performed on a single day at a snow depth of 9–11 cm. Snow probe measurements were performed directly in the permanent chambers. Subsequently, snow was removed from inside and from around the chambers and the CO2 efflux was estimated by the closed dynamic...
Chapter
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Available from: http://www.intechopen.com/books/management-strategies-to-adapt-alpine-space-forests-to-climate-change-risks/managing-alpine-forests-in-a-changing-climate
Chapter
Full-text available
Climate scenarios suggest that current forest stands will face radically different temperature and precipitation conditions in the future. Developing future strategies for forest management in the face of uncertain and highly variable forecasts of future site conditions is a great challenge. Here we have analyzed transnational case studies dealing...
Article
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Climate change might alter annual snowfall patterns and modify the duration and magnitude of snow cover in temperate regions with resultant impacts on soil microclimate and soil CO2 efflux (Fsoil ). We used a five years time-series of Fsoil measurements from a mid elevation forest to assess the effects of naturally changing snow cover. Snow cover v...
Chapter
Forests play an important role in the mitigation of climate change, and store substantial amounts of carbon (C). The living biomass contains 363 Pg C and the soils an additional 426 Pg C. Given that forests annually exchange about sevenfold more carbon dioxide (CO2) with the atmosphere by photosynthesis and respiration than is emitted by burning of...
Article
Mountain forests are strongly affected by climate change effects. The migration of trees into alpine pastures affects the local carbon budget. The soils are accruing carbon and the tree biomass further enhances the local carbon pool. In a simulation exercise combining a forest growth model and a soil carbon model we followed the temporal trend of t...
Article
Climate change will alter the duration and magnitude of snow cover, especially in temperate areas at lower altitude, where wintertime air temperatures often fluctuate around freezing. A five years time series of consecutive soil respiration measurements was used to assess the effects of duration and magnitude of cold season snow-cover on annual and...
Article
Full-text available
We evaluated the effect of acidic deposition and nitrogen on Austrian forests soils. Until thirty years ago air pollution had led to soil acidification, and concerns on the future productivity of forests were raised. Elevated rates of nitrogen deposition were believed to cause nitrate leaching and imbalanced forest nutrition. We used data from a so...