Browsing Naturwissenschaften, Mathematik und Informatik by Referee "Saborowski, Joachim Prof. Dr."
Now showing items 1-20 of 25
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Acquisition and Characterization of Canopy Gap Patterns of Beech Forests
(2019-11-22)Canopy gap research in European beech-dominated forests has experienced a remarkable upswing in the last decades. It contributes to answering both fundamental ecological questions and to designing silvicultural interventions ... -
Laubholz mit niedriger Umtriebszeit in Nordwestdeutschland - Charakterisierung der Vorkommen, Wachstumsmodellierung und waldbauliche Steuerung
(2018-03-02)The supply of short-lived deciduous trees (ALn) in Lower Saxony was analysed using data from the German national forest inventory (NFI, 2002 and 2012). The standard results of the NFI were augmented by own calculations, ... -
Ein klimasensitives, autoregressives Modell zur Beschreibung der Einzelbaum Mortalität
(2017-11-29)Forestry encounters new challenges in the face of the climate change, that require adaption measures of current forest management practices. Some positive but mostly negative effects due to the climate change are anticipated ... -
The role of heterogeneity in spatial plant population dynamics
(2017-10-23)Ecological theory names interacting mechanisms that allow competing species to coexist in limited available space, some of them are perceive as antagonistic. Most prominent are niche differentiation, heterogeneity and ... -
Structural analysis and growth modeling of natural forests in Vietnam
(2015-02-11)Forest growth and yield models are the oldest and most expansive class; as such, they are the most widely used in forest management. The most significant benefits of those models are their ability to provide an efficient ... -
Modelle zur Abbildung asymmetrischer Kronenformen und zur Beschreibung der Zuwachsleistung für sechs Baumarten in Nordwestdeutschland
(2014-07-11)The canopy plays an important role in forest ecosystems: its structure, especially size and shape of the crowns and their position in relation to each other, determines the micro-climatic conditions at the forest floor, ... -
Fernerkundliche Waldflächenerfassung im Kontext internationaler Umweltabkommen
(2013-09-23)In reaction to the ongoing anthropogenetic changes of the earth' ecosystems the United Nations Conference on Environment and Development was hold in 1992 in Rio de Janeiro. This conference was an important starting point ... -
Approaches for the optimisation of double sampling for stratification in repeated forest inventories
(2013-06-17)Double sampling for stratification is an efficient sampling scheme that could prove its practicability in different forest inventories. Nevertheless, further increases of efficiency are desired. Several approaches for ... -
Growth and Site Conditions of Acacia mangium, Acacia hybrid, Eucalyptus urophylla, Cinnamomum parthenoxylon and Erythropholeum fordii for Livelihood Security of Smallholders in Industrial Tree Planting Programs of Vietnam
(2012-03-16)This research has been carried out in the context of a CIFOR (Center for International Forestry Research) project. The purpose of the project is to strengthen rural institutions and promote ... -
New adaptive plot designs for sampling rare and clustered populations
(2012-02-07)In this methodological study, three new and more practical adaptive plot designs (I, II and III) are introduced with an overall objective to improve the efficiency of sampling rare and ... -
Ecological Management of Tropical forests: Implications for climate change and Carbon Fluxes
(2010-12-20)Tropical deforestation and forest degradation contributes to more than 20% of the global greenhouse gases emitted. Deforestation and its impacts can be more easily estimated with satellite ... -
Development of efficient forest inventory techniques for forest resource assessment in South Korea
(2009-02-26)A new National Forest Inventory (NFI) program in South Korea has been implemented to provide reliable forest resource information for forest policy decision-making and monitoring at the ... -
Remotely Sensed Data Fusion as a Basis for Environmental Studies: Concepts, Techniques and Applications
(2008-12-01)Following the dramatic qualitative and quantitative developments of remote sensing systems and digital imaging technologies, numerous kinds of images have been captured, processed and ... -
Composite Estimation of Stand Tables
(2008-09-22)One of the most important parameters for characterizing a forest stand is its stand table. In this thesis, the problem of estimating stand tables in stands with only a few sample plots (i.e. ... -
Forstplanung auf der Basis von Eingriffsinventuren
(2007-11-20)This dissertation presents the general concept and specific application details of a permanent forest inventory in which the forest stand is the reference unit for resource assessment and planning. The stand-oriented ... -
Räumliche, GIS-gestützte Analyse von Linientransektstichproben
(2007-07-30)An approach to include spatially referenced information which is stored within a geographical information system (GIS) into the analysis of conventional line transect surveys is presented. ... -
Ein nichtlineares, hierarchisches und gemischtes Modell für das Baum-Höhenwachstum der Fichte (Picea abies (L.) Karst.) in Baden-Württemberg
(2007-05-09)A non-linear hierarchical mixed model approach is used to describe height growth of Norway spruce applying longitudinal data. The parameter variation depends on covariates for fixed effects and random parameters. The ... -
Bedingte und unbedingte Fehler bei geostatistischen Vorhersagen - forstwissenschaftliche Fallstudien
(2007-04-20)In most geostatistical applications the stated mean squared prediction error is unconditional with respect to the data since the conditional marginal distribution and with it the conditional error is only known for the ... -
Methodische Ansätze zur Erfassung von Waldbäumen mittels digitaler Luftbildauswertung
(2004-02-16)Since 1994 the European Environmental Monitoring has been complemented by a program of intensive surveys of forest ecosystems (Level 2). Major goal of the Intensive Monitoring Program is ... -
Analyse und praktische Umsetzung unterschiedlicher Methoden des <i>Randomized Branch Sampling</i>
(2003-07-15)Randomized Branch Sampling (RBS) is a multistage sampling procedure, which uses the natural branching of a tree in order to take samples for estimating one or several characteristics of the ...