Otto Eckmüllner

Otto Eckmüllner
University of Natural Resources and Life Sciences Vienna | boku · Institute of Forest Growth

Dipl.-Ing. Dr.

About

42
Publications
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698
Citations

Publications

Publications (42)
Book
Full-text available
The project "Vienna’s Wood" brought many new insights towards a better understanding of the largely unregulated Viennese Danube floodplains in river morphological, aquatic/vegetation ecological, forestal and environmental historical perspective. The results allow answering the following research questions: 1. What annual erosion and aggradation ra...
Data
Full-text available
What do we know about the natural productivity of riparian forests on large rivers prior to regulation and about their function as a source of raw materials and renewable energy? Can we draw conclusions for a sustainable resource management based on a historical reconstruction of the available timber resources centuries ago? An interdisciplinary r...
Conference Paper
Full-text available
RÉSUMÉ Que savons-nous de la productivité naturelle des forêts alluviales des grands fleuves avant les travaux de régulation à la fin du 19eme siècle ? Quelle était leur importance en termes de ressources et de source d'énergie ? Ces modèles historiques (pré-aménagements) peuvent-ils être utilisé pour définir des objectifs en termes de gestion dur...
Article
Background Approximately 10% of cases of acute myeloid leukemia (AML) arise following exposure to chemotherapy (treatment-related AML [tAML]). Compared to de novo AML patients, tAML patients have a poor prognosis, not least due to a higher proportion having adverse cytogenetics. Treatment options for tAML patients are limited and outcomes remain di...
Article
Background Several studies, including retrospective analyses of patient registries1,2 and a subanalysis of the phase III MDS-AZA-001 trial3 suggest that poor-risk cytogenetics negatively impact overall survival (OS) in patients with myelodysplastic syndrome (MDS) and World Health Organization (WHO)-defined acute myeloid leukemia (AML) treated with...
Article
Background The prognosis of patients with relapsed/refractory acute myeloid leukemia (AML) following intensive chemotherapy (IC) is poor; furthermore, treatment options for these patients are limited. Few studies have assessed outcomes of azacitidine (AZA) in a relapsed/refractory setting.1–3 Response rates and survival in these studies have been v...
Article
Background Recent phase III data indicate that azacitidine (AZA) is active, and well tolerated, in patients with acute myeloid leukemia (AML) and baseline white blood cell (WBC) counts of <15G/L.1 However, few studies have assessed whether proliferative disease (WBC ≥15G/L) is a negative prognostic indicator in patients with World Health Organizati...
Article
Background Few data exist reporting the incidence of World Health Organization (WHO)-defined acute myeloid leukemia (AML) subgroups in adults in Europe,1 but the incidence of AML with myelodysplastic-related features (MRF) may be higher than initially reported.2–4 Whether the presence of multilineage dysplasia has an independent prognostic impact i...
Article
Full-text available
Data on efficacy and safety of azacitidine in acute myeloid leukemia (AML) with >30 % bone marrow (BM) blasts are limited, and the drug can only be used off-label in these patients. We previously reported on the efficacy and safety of azacitidine in 155 AML patients treated within the Austrian Azacitidine Registry (clinicaltrials.gov identifier NCT...
Book
Full-text available
The project "Vienna’s Wood" brought many new insights towards a better understanding of the largely unregulated Viennese Danube floodplains in river morphological, aquatic/vegetation ecological, forestal and environmental historical perspective. The results allow answering the following research questions: 1. What annual erosion and aggradation ra...
Article
Full-text available
Forest ecosystems deliver multiple goods and services and, traditionally, forest owners tend to have a high interest in goods in the form of merchantable wood. As a consequence, forest management often aims to increase timber production and economic returns through intervention into natural processes. However, forests provide further services, incl...
Article
The demand for biomass from forests is rising continuously. Decision support tools for managers and forest authorities should help to avoid negative consequences of increased biomass extraction on ecosystem processes and the sustainable supply of forest services. Those tools have to be site and stand specific. In Alpine regions shallow soils with h...
Article
Intact forest stands in humid climate zones are considered to have favourable effects on ground water supply by moderating peak flows and by their ability to filter, buffer or transform pollutants. These functions may be temporarily lost in case of disturbances. The water supply and storage capacity of a forest site is a determinant of both species...
Article
The basal area increment, height increment and crown ratio model of Prognaus were evaluated using three different independent dataseis from Litschau, Arnoldstein and Nasswald in Austria. The first two dataseis were permanent research plots, where growth was observed for 30 and 15 years, respectively, the latter is a forest inventory with 10 years o...
Article
This paper presents a concept for analysing the bearing of institutional settings on inter- and transdisciplinary research and education for sustainable development and applies it to a concrete case example. It asks in how far the funding programme requirements and the institutional project arrangements impacted on the research process and project...
Article
Crown-condition assessment, hypothesized to estimate needle losses following damage from several sources, one of which might be air pollution, suffers from the subjective notion of a standard "healthy" tree. On the other hand, the foliage biomass - sapwood area ratios are reported to depend on a number of factors, e.g., site quality, stand density,...
Article
Original inClimate Change and Impacts on Water SupplyAppendix IForests, Water Protection and Climate ChangeReports of the BOKU -- Forest Group to WP 5
Article
Full-text available
Since individual tree leaf area is an important measure for productivity as well as for site occupancy, it is of high interest in many studies about forest growth. The exact determination of leaf area is nearly impossible. Thus, a common way to get information about leaf area is to use substitutes. These substitutes are often variables which are co...
Article
Full-text available
Few tree size/leaf area correlations have been produced for hardwoods, where the extrapolation from individual branches to the whole tree is less straightforward than in conifers with more regular branching patterns. We used randomized branch sampling to estimate leaf area of European beech (Fagus sylvatica L.) trees of different stands, ages and a...
Article
Full-text available
This paper provides a summary of results from three existing blue pine thinning trials in Bhutan. The objectives are to quantify the effects of thinning treatments on productivity and stability of bluepine stands. The trials were established in the blue pine dominated valleys of Bumthang (Hurchi), Thimphu (Taba) and Wangdi Phodrang (Khotokha). In H...
Article
Title of the paper: Site Index and the Age of Maximum Height Increment. The objective of this study is to investigate if the general assumption holds that in sites with a higher site index, the maximum height increment occurs earlier than in sites with poorer site indices. In three Austrian regions 578 dominant trees (sensu Assmann, 1961) were fell...
Article
Five forest management districts in natural Norway spruce-fir-beech ecosystems are investigated for a change in the proportions of beech and Norway spruce, based on continuous inventories. Since all these districts experienced damage by snow, wind and subsequent bark beetle attacks, the proportion of Norway spruce in the tree layer decreased verifi...
Article
As in Austria new timber trade guidelines became effective and therefore the existing single stem assortment tables for Austrian tree species lost their validity, new taper curves for nearly all economic important tree species in Austria and a new sorting algorithm which allows for timber-quality were developed. So every single stem is translated,...
Article
We investigated the long-term temporal trend in growth rate, soil chemical status, and nutrient content of needles of two Norway spruce (Picea abies) stands in the Bohemian Massif, Austria. The aim was to quantify changes in the site productivity over the last four decades as a consequence of the enriching effect of N deposition, rising CO2 levels...
Article
Nonvalidated definitions of disease-related parameters in inflammatory bowel disease cause variations in diagnosis and disease classification. We determined interobserver agreement on applications of definitions of the Vienna Classification variables and computed the potential influence of misclassification on genotype/phenotype associations. Ten r...
Article
Full-text available
From data of 296 Norway spruce, distributed over Austria, and 80 Scots pine trees from the Wald- and Weinviertel, biomass functions were derived using allometric models. The dry needle mass, the dry branch mass and the dry needle and branch mass can be estimated with the diameter at breast height, the tree height and the crown ratio. As expected wa...
Article
An increasing use of forest sampling and a huge progress in individual-tree growth modelling offered a new field of application for individual-tree growth models: predicting forest growth by updating tree data of individual sample plots. What is usually overlooked by such applications is the fact that the sampling design for collecting the paramete...
Article
Full-text available
The responses of radial and height growth, plant architecture, and the probability of mortality of saplings to varying light levels were quantified for six tree species in temperate,conifer forests of the Bhutan Himalayas. Increases in growth,with increasing light were comparable,with those of high latitude tree species but lower than those of trop...
Article
Full-text available
The development of vascular features in stems of Populus x euramericana was studied in two adjacent floodplain forest stands near the Danube in Austria. The construction of a hydropower plant caused one of the stands to loose contact with the groundwater at the age of 12years, whereas the other stand remained uninfluenced. The investigation estimat...
Article
The Basal-Area-in-Larger Trees (BAL) is a measure of competition which is often used in individual-tree growth modelling. However, depending on the inventory design used for sampling the parameterization data, this competition variable is characterized by a specific resolution which has an effect on the model coefficients. If such an individual-tre...
Article
Full-text available
Specific leaf area (SLA), leaf area index (LAI) and leaf area ratio (LAR) of Rhododendron hodgsonii were characterised across size classes. Responses of radial and height growth and plant architecture of saplings to varying light levels were quantified. Growth history of and light levels at recently died-off saplings were characterised. Average SLA...
Article
Full-text available
Norway spruce has shown needle yellowing and defoliation symptoms on manysites of the Bohemian Forest in north central Austria since theearly 1980s. A forest amelioration experiment was set up toevaluate the response of spruce to magnesite based fertilizerswith different solubilities. Response variables were a crownvigor index, diameter growth, nut...
Article
Full-text available
Forest stand parameters are derived from airborne laser scanner data. Data from three laser scanner flights by the company "TopoSys " are used, a winter flight with last pulse recorded and two summer flights, with last and first pulse recorded respectively. The laser data are reduced to relative (ground) heights with a high quality ground elevation...
Article
Full-text available
Amelioration of degraded forest ecosystems on acidic substrates showing the new type of forest decline is a major goal of forest management. A number of experiments show positive effects of Mg-application to systems suffering from Mg-deficiencies. The current paper compares experiments conducted in the Austrian part of the Bohemian Massif, where bo...

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